pengjunjie/langflow
1
0
Fork 1
mirror of https://github.com/langflow-ai/langflow.git synced 2026-07-24 05:16:40 +08:00
Code Issues Packages Projects Releases Wiki Activity
Files
de501545fa027eaddf59f5d5ee980d84278cb5c9
langflow/components-tools.html
github-merge-queue[bot] de501545fa deploy: a04b0b19b4
2025-04-01 14:18:04 +00:00

253 lines
74 KiB
HTML
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!doctype html>
<html lang="en" dir="ltr" class="docs-wrapper plugin-docs plugin-id-default docs-version-current docs-doc-page docs-doc-id-Components/components-tools" data-has-hydrated="false">
<head>
<meta charset="UTF-8">
<meta name="generator" content="Docusaurus v3.7.0">
<title data-rh="true">Tools | Langflow Documentation</title><meta data-rh="true" name="viewport" content="width=device-width,initial-scale=1"><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://docs.langflow.org/components-tools"><meta data-rh="true" property="og:locale" content="en"><meta data-rh="true" name="docusaurus_locale" content="en"><meta data-rh="true" name="docsearch:language" content="en"><meta data-rh="true" name="docusaurus_version" content="current"><meta data-rh="true" name="docusaurus_tag" content="docs-default-current"><meta data-rh="true" name="docsearch:version" content="current"><meta data-rh="true" name="docsearch:docusaurus_tag" content="docs-default-current"><meta data-rh="true" property="og:title" content="Tools | Langflow Documentation"><meta data-rh="true" name="description" content="Tools are typically connected to agent components at the Tools port. Agents use LLMs as a reasoning engine to decide which of the connected tool components to use to solve a problem."><meta data-rh="true" property="og:description" content="Tools are typically connected to agent components at the Tools port. Agents use LLMs as a reasoning engine to decide which of the connected tool components to use to solve a problem."><link data-rh="true" rel="icon" href="/img/favicon.ico"><link data-rh="true" rel="canonical" href="https://docs.langflow.org/components-tools"><link data-rh="true" rel="alternate" href="https://docs.langflow.org/components-tools" hreflang="en"><link data-rh="true" rel="alternate" href="https://docs.langflow.org/components-tools" hreflang="x-default"><link data-rh="true" rel="preconnect" href="https://UZK6BDPCVY-dsn.algolia.net" crossorigin="anonymous"><link rel="preconnect" href="https://www.google-analytics.com">
<link rel="preconnect" href="https://www.googletagmanager.com">
<script async src="https://www.googletagmanager.com/gtag/js?id=G-XHC7G628ZP"></script>
<script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","G-XHC7G628ZP",{anonymize_ip:!0})</script>
<link rel="preconnect" href="https://www.googletagmanager.com">
<script>window.dataLayer=window.dataLayer||[]</script>
<script>!function(e,t,a,n){e[n]=e[n]||[],e[n].push({"gtm.start":(new Date).getTime(),event:"gtm.js"});var g=t.getElementsByTagName(a)[0],m=t.createElement(a);m.async=!0,m.src="https://www.googletagmanager.com/gtm.js?id=GTM-NK5M4ZT8",g.parentNode.insertBefore(m,g)}(window,document,"script","dataLayer")</script>
<link rel="search" type="application/opensearchdescription+xml" title="Langflow Documentation" href="/opensearch.xml">
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Sora:wght@550;600&amp;display=swap"><link rel="stylesheet" href="/assets/css/styles.b2eb940a.css">
<script src="/assets/js/runtime~main.f9ee7916.js" defer="defer"></script>
<script src="/assets/js/main.4faf5c99.js" defer="defer"></script>
</head>
<body class="navigation-with-keyboard">
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-NK5M4ZT8" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<script>!function(){function t(t){document.documentElement.setAttribute("data-theme",t)}var e=function(){try{return new URLSearchParams(window.location.search).get("docusaurus-theme")}catch(t){}}()||function(){try{return window.localStorage.getItem("theme")}catch(t){}}();null!==e?t(e):window.matchMedia("(prefers-color-scheme: dark)").matches?t("dark"):(window.matchMedia("(prefers-color-scheme: light)").matches,t("light"))}(),function(){try{const c=new URLSearchParams(window.location.search).entries();for(var[t,e]of c)if(t.startsWith("docusaurus-data-")){var a=t.replace("docusaurus-data-","data-");document.documentElement.setAttribute(a,e)}}catch(t){}}()</script><div id="__docusaurus"><div role="region" aria-label="Skip to main content"><a class="skipToContent_fXgn" href="#__docusaurus_skipToContent_fallback">Skip to main content</a></div><nav aria-label="Main" class="navbar navbar--fixed-top navbarHideable_m1mJ"><div class="navbar__inner"><div class="navbar__items"><button aria-label="Toggle navigation bar" aria-expanded="false" class="navbar__toggle clean-btn" type="button"><svg width="30" height="30" viewBox="0 0 30 30" aria-hidden="true"><path stroke="currentColor" stroke-linecap="round" stroke-miterlimit="10" stroke-width="2" d="M4 7h22M4 15h22M4 23h22"></path></svg></button><a class="navbar__brand" href="/"><div class="navbar__logo"><img src="/img/langflow-logo-black.svg" alt="Langflow" class="themedComponent_mlkZ themedComponent--light_NVdE"><img src="/img/langflow-logo-white.svg" alt="Langflow" class="themedComponent_mlkZ themedComponent--dark_xIcU"></div></a></div><div class="navbar__items navbar__items--right"><a href="https://github.com/langflow-ai/langflow" target="_blank" class="navbar__item navbar__link header-github-link"></a><a href="https://twitter.com/langflow_ai" target="_blank" class="navbar__item navbar__link header-twitter-link"></a><a href="https://discord.gg/EqksyE2EX9" target="_blank" class="navbar__item navbar__link header-discord-link"></a><div class="toggle_vylO colorModeToggle_DEke"><button class="clean-btn toggleButton_gllP toggleButtonDisabled_aARS" type="button" disabled="" title="Switch between dark and light mode (currently light mode)" aria-label="Switch between dark and light mode (currently light mode)" aria-live="polite" aria-pressed="false"><svg viewBox="0 0 24 24" width="24" height="24" class="lightToggleIcon_pyhR"><path fill="currentColor" d="M12,9c1.65,0,3,1.35,3,3s-1.35,3-3,3s-3-1.35-3-3S10.35,9,12,9 M12,7c-2.76,0-5,2.24-5,5s2.24,5,5,5s5-2.24,5-5 S14.76,7,12,7L12,7z M2,13l2,0c0.55,0,1-0.45,1-1s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S1.45,13,2,13z M20,13l2,0c0.55,0,1-0.45,1-1 s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S19.45,13,20,13z M11,2v2c0,0.55,0.45,1,1,1s1-0.45,1-1V2c0-0.55-0.45-1-1-1S11,1.45,11,2z M11,20v2c0,0.55,0.45,1,1,1s1-0.45,1-1v-2c0-0.55-0.45-1-1-1C11.45,19,11,19.45,11,20z M5.99,4.58c-0.39-0.39-1.03-0.39-1.41,0 c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0s0.39-1.03,0-1.41L5.99,4.58z M18.36,16.95 c-0.39-0.39-1.03-0.39-1.41,0c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0c0.39-0.39,0.39-1.03,0-1.41 L18.36,16.95z M19.42,5.99c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06c-0.39,0.39-0.39,1.03,0,1.41 s1.03,0.39,1.41,0L19.42,5.99z M7.05,18.36c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06 c-0.39,0.39-0.39,1.03,0,1.41s1.03,0.39,1.41,0L7.05,18.36z"></path></svg><svg viewBox="0 0 24 24" width="24" height="24" class="darkToggleIcon_wfgR"><path fill="currentColor" d="M9.37,5.51C9.19,6.15,9.1,6.82,9.1,7.5c0,4.08,3.32,7.4,7.4,7.4c0.68,0,1.35-0.09,1.99-0.27C17.45,17.19,14.93,19,12,19 c-3.86,0-7-3.14-7-7C5,9.07,6.81,6.55,9.37,5.51z M12,3c-4.97,0-9,4.03-9,9s4.03,9,9,9s9-4.03,9-9c0-0.46-0.04-0.92-0.1-1.36 c-0.98,1.37-2.58,2.26-4.4,2.26c-2.98,0-5.4-2.42-5.4-5.4c0-1.81,0.89-3.42,2.26-4.4C12.92,3.04,12.46,3,12,3L12,3z"></path></svg></button></div><div class="navbarSearchContainer_Bca1"><button type="button" class="DocSearch DocSearch-Button" aria-label="Search (Command+K)"><span class="DocSearch-Button-Container"><svg width="20" height="20" class="DocSearch-Search-Icon" viewBox="0 0 20 20" aria-hidden="true"><path d="M14.386 14.386l4.0877 4.0877-4.0877-4.0877c-2.9418 2.9419-7.7115 2.9419-10.6533 0-2.9419-2.9418-2.9419-7.7115 0-10.6533 2.9418-2.9419 7.7115-2.9419 10.6533 0 2.9419 2.9418 2.9419 7.7115 0 10.6533z" stroke="currentColor" fill="none" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round"></path></svg><span class="DocSearch-Button-Placeholder">Search</span></span><span class="DocSearch-Button-Keys"></span></button></div></div></div><div role="presentation" class="navbar-sidebar__backdrop"></div></nav><div id="__docusaurus_skipToContent_fallback" class="main-wrapper mainWrapper_z2l0"><div class="docsWrapper_hBAB"><button aria-label="Scroll back to top" class="clean-btn theme-back-to-top-button backToTopButton_sjWU" type="button"></button><div class="docRoot_UBD9"><aside class="theme-doc-sidebar-container docSidebarContainer_YfHR"><div class="sidebarViewport_aRkj"><div class="sidebar_njMd sidebarWithHideableNavbar_wUlq"><a tabindex="-1" class="sidebarLogo_isFc" href="/"><img src="/img/langflow-logo-black.svg" alt="Langflow" class="themedComponent_mlkZ themedComponent--light_NVdE"><img src="/img/langflow-logo-white.svg" alt="Langflow" class="themedComponent_mlkZ themedComponent--dark_xIcU"></a><nav aria-label="Docs sidebar" class="menu thin-scrollbar menu_SIkG"><ul class="theme-doc-sidebar-menu menu__list"><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-1 menu__list-item"><a class="menu__link" href="/">Welcome to Langflow</a></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/get-started-installation">Get started</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/starter-projects-basic-prompting">Starter projects</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/blog-writer">Sample flows</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/concepts-overview">Concepts</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret menu__link--active" role="button" aria-expanded="true" href="/components-agents">Components</a></div><ul style="display:block;overflow:visible;height:auto" class="menu__list"><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-agents">Agents</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-bundle-components">Bundles</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-custom-components">Create custom Python components</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-data">Data</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-embedding-models">Embeddings</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-helpers">Helpers</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-io">Inputs and outputs</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-loaders">Loaders</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-logic">Logic</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-memories">Memories</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-models">Models</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-processing">Processing</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-prompts">Prompts</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link menu__link--active" aria-current="page" tabindex="0" href="/components-tools">Tools</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/components-vector-stores">Vector stores</a></li></ul></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/agents-overview">Agents</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/configuration-api-keys">Configuration</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/develop-overview">Develop</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/deployment-overview">Deployment</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/api">API reference</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/integrations-apify">Integrations</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/contributing-community">Contributing</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a href="https://github.com/langflow-ai/langflow/releases/latest" target="_blank" rel="noopener noreferrer" class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false">Changelog</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" role="button" aria-expanded="false" href="/luna-for-langflow">Support</a></div></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-1 sidebar-ad">
<a href="https://astra.datastax.com/signup?type=langflow" target="_blank" class="menu__link">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-cloud"><path d="M17.5 19H9a7 7 0 1 1 6.71-9h1.79a4.5 4.5 0 1 1 0 9Z"/></svg>
<div class="sidebar-ad-text-container">
<span class="sidebar-ad-text">Use Langflow in the cloud</span>
<span class="sidebar-ad-text sidebar-ad-text-gradient">Sign up for DataStax Langflow</span>
</div>
</a>
</li></ul></nav></div></div></aside><main class="docMainContainer_TBSr"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="Breadcrumbs"><ul class="breadcrumbs" itemscope="" itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Components</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Tools</span><meta itemprop="position" content="2"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><style>[data-ch-theme="github-dark"] { --ch-t-colorScheme: dark;--ch-t-foreground: #c9d1d9;--ch-t-background: #0d1117;--ch-t-lighter-inlineBackground: #0d1117e6;--ch-t-editor-background: #0d1117;--ch-t-editor-foreground: #c9d1d9;--ch-t-editor-lineHighlightBackground: #6e76811a;--ch-t-editor-rangeHighlightBackground: #ffffff0b;--ch-t-editor-infoForeground: #3794FF;--ch-t-editor-selectionBackground: #264F78;--ch-t-focusBorder: #1f6feb;--ch-t-tab-activeBackground: #0d1117;--ch-t-tab-activeForeground: #c9d1d9;--ch-t-tab-inactiveBackground: #010409;--ch-t-tab-inactiveForeground: #8b949e;--ch-t-tab-border: #30363d;--ch-t-tab-activeBorder: #0d1117;--ch-t-editorGroup-border: #30363d;--ch-t-editorGroupHeader-tabsBackground: #010409;--ch-t-editorLineNumber-foreground: #6e7681;--ch-t-input-background: #0d1117;--ch-t-input-foreground: #c9d1d9;--ch-t-input-border: #30363d;--ch-t-icon-foreground: #8b949e;--ch-t-sideBar-background: #010409;--ch-t-sideBar-foreground: #c9d1d9;--ch-t-sideBar-border: #30363d;--ch-t-list-activeSelectionBackground: #6e768166;--ch-t-list-activeSelectionForeground: #c9d1d9;--ch-t-list-hoverBackground: #6e76811a;--ch-t-list-hoverForeground: #c9d1d9; }</style>
<!-- -->
<header><h1>Tool components in Langflow</h1></header>
<p>Tools are typically connected to agent components at the <strong>Tools</strong> port. Agents use LLMs as a reasoning engine to decide which of the connected tool components to use to solve a problem.</p>
<p>Tools in agentic functions are, essentially, functions that the agent can call to perform tasks or access external resources.
A function is wrapped as a <code>Tool</code> object, with a common interface the agent understands.
Agents become aware of tools through tool registration, where the agent is provided a list of available tools, typically at agent initialization. The <code>Tool</code> object&#x27;s description tells the agent what the tool can do.</p>
<p>The agent then uses a connected LLM to reason through the problem to decide which tool is best for the job.</p>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="use-a-tool-in-a-flow">Use a tool in a flow<a href="#use-a-tool-in-a-flow" class="hash-link" aria-label="Direct link to Use a tool in a flow" title="Direct link to Use a tool in a flow">​</a></h2>
<p>Tools are typically connected to agent components at the <strong>Tools</strong> port.</p>
<p>The <a href="/starter-projects-simple-agent">simple agent starter project</a> uses URL and Calculator tools connected to an <a href="/components-agents#agent-component">agent component</a> to answer a user&#x27;s questions. The OpenAI LLM acts as a brain for the agent to decide which tool to use.</p>
<p><img decoding="async" loading="lazy" alt="Simple agent starter flow" src="/assets/images/starter-flow-simple-agent-71d0dec218a5da8e3110c51716f1c91e.png" width="1732" height="1748" class="img_ev3q"></p>
<p>To make a component into a tool that an agent can use, enable <strong>Tool mode</strong> in the component. Enabling <strong>Tool mode</strong> modifies a component input to accept calls from an agent.
If the component you want to connect to an agent doesn&#x27;t have a <strong>Tool mode</strong> option, you can modify the component&#x27;s inputs to become a tool.
For an example, see <a href="/agents-tool-calling-agent-component#make-any-component-a-tool">Make any component a tool</a>.</p>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="arxiv">arXiv<a href="#arxiv" class="hash-link" aria-label="Direct link to arXiv" title="Direct link to arXiv">​</a></h2>
<p>This component searches and retrieves papers from <a href="https://arXiv.org" target="_blank" rel="noopener noreferrer">arXiv.org</a>.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs">Inputs<a href="#inputs" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>search_query</td><td>Search Query</td><td>The search query for arXiv papers (for example, <code>quantum computing</code>)</td></tr><tr><td>search_type</td><td>Search Field</td><td>The field to search in</td></tr><tr><td>max_results</td><td>Max Results</td><td>Maximum number of results to return</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs">Outputs<a href="#outputs" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>papers</td><td>Papers</td><td>List of retrieved arXiv papers</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="astra-db-tool">Astra DB Tool<a href="#astra-db-tool" class="hash-link" aria-label="Direct link to Astra DB Tool" title="Direct link to Astra DB Tool">​</a></h2>
<p>The <code>Astra DB Tool</code> allows agents to connect to and query data from Astra DB collections.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-1">Inputs<a href="#inputs-1" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>Tool Name</td><td>String</td><td>The name used to reference the tool in the agent&#x27;s prompt.</td></tr><tr><td>Tool Description</td><td>String</td><td>A brief description of the tool. This helps the model decide when to use it.</td></tr><tr><td>Collection Name</td><td>String</td><td>The name of the Astra DB collection to query.</td></tr><tr><td>Token</td><td>SecretString</td><td>The authentication token for accessing Astra DB.</td></tr><tr><td>API Endpoint</td><td>String</td><td>The Astra DB API endpoint.</td></tr><tr><td>Projection Fields</td><td>String</td><td>The attributes to return, separated by commas. Default: &quot;*&quot;.</td></tr><tr><td>Tool Parameters</td><td>Dict</td><td>Parameters the model needs to fill to execute the tool. For required parameters, use an exclamation mark (for example, <code>!customer_id</code>).</td></tr><tr><td>Static Filters</td><td>Dict</td><td>Attribute-value pairs used to filter query results.</td></tr><tr><td>Limit</td><td>String</td><td>The number of documents to return.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-1">Outputs<a href="#outputs-1" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<p>The Data output is primarily used when directly querying Astra DB, while the Tool output is used when integrating with LangChain agents or chains.</p>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>Data</td><td>List[<code>Data</code>]</td><td>A list of <a href="/concepts-objects">Data</a> objects containing the query results from Astra DB. Each <code>Data</code> object contains the document fields specified by the projection attributes. Limited by the <code>number_of_results</code> parameter.</td></tr><tr><td>Tool</td><td>StructuredTool</td><td>A LangChain <code>StructuredTool</code> object that can be used in agent workflows. Contains the tool name, description, argument schema based on tool parameters, and the query function.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="astra-db-cql-tool">Astra DB CQL Tool<a href="#astra-db-cql-tool" class="hash-link" aria-label="Direct link to Astra DB CQL Tool" title="Direct link to Astra DB CQL Tool">​</a></h2>
<p>The <code>Astra DB CQL Tool</code> allows agents to query data from CQL tables in Astra DB.</p>
<p>The main difference between this tool and the <strong>Astra DB Tool</strong> is that this tool is specifically designed for CQL tables and requires partition keys for querying, while also supporting clustering keys for more specific queries.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-2">Inputs<a href="#inputs-2" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>Tool Name</td><td>String</td><td>The name used to reference the tool in the agent&#x27;s prompt.</td></tr><tr><td>Tool Description</td><td>String</td><td>A brief description of the tool to guide the model in using it.</td></tr><tr><td>Keyspace</td><td>String</td><td>The name of the keyspace.</td></tr><tr><td>Table Name</td><td>String</td><td>The name of the Astra DB CQL table to query.</td></tr><tr><td>Token</td><td>SecretString</td><td>The authentication token for Astra DB.</td></tr><tr><td>API Endpoint</td><td>String</td><td>The Astra DB API endpoint.</td></tr><tr><td>Projection Fields</td><td>String</td><td>The attributes to return, separated by commas. Default: &quot;*&quot;.</td></tr><tr><td>Partition Keys</td><td>Dict</td><td>Required parameters that the model must fill to query the tool.</td></tr><tr><td>Clustering Keys</td><td>Dict</td><td>Optional parameters the model can fill to refine the query. Required parameters should be marked with an exclamation mark (for example, <code>!customer_id</code>).</td></tr><tr><td>Static Filters</td><td>Dict</td><td>Attribute-value pairs used to filter query results.</td></tr><tr><td>Limit</td><td>String</td><td>The number of records to return.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-2">Outputs<a href="#outputs-2" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>Data</td><td>List[Data]</td><td>A list of <a href="/concepts-objects">Data</a> objects containing the query results from the Astra DB CQL table. Each Data object contains the document fields specified by the projection fields. Limited by the <code>number_of_results</code> parameter.</td></tr><tr><td>Tool</td><td>StructuredTool</td><td>A LangChain StructuredTool object that can be used in agent workflows. Contains the tool name, description, argument schema based on partition and clustering keys, and the query function.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="bing-search-api">Bing Search API<a href="#bing-search-api" class="hash-link" aria-label="Direct link to Bing Search API" title="Direct link to Bing Search API">​</a></h2>
<p>This component allows you to call the Bing Search API.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-3">Inputs<a href="#inputs-3" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>bing_subscription_key</td><td>SecretString</td><td>Bing API subscription key</td></tr><tr><td>input_value</td><td>String</td><td>Search query input</td></tr><tr><td>bing_search_url</td><td>String</td><td>Custom Bing Search URL (optional)</td></tr><tr><td>k</td><td>Integer</td><td>Number of search results to return</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-3">Outputs<a href="#outputs-3" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>results</td><td>List[Data]</td><td>List of search results</td></tr><tr><td>tool</td><td>Tool</td><td>Bing Search tool for use in LangChain</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="calculator-tool">Calculator Tool<a href="#calculator-tool" class="hash-link" aria-label="Direct link to Calculator Tool" title="Direct link to Calculator Tool">​</a></h2>
<p>This component creates a tool for performing basic arithmetic operations on a given expression.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-4">Inputs<a href="#inputs-4" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>expression</td><td>String</td><td>The arithmetic expression to evaluate (for example, <code>4*4*(33/22)+12-20</code>).</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-4">Outputs<a href="#outputs-4" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>result</td><td>Tool</td><td>Calculator tool for use in LangChain</td></tr></tbody></table>
<p>This component allows you to evaluate basic arithmetic expressions. It supports addition, subtraction, multiplication, division, and exponentiation. The tool uses a secure evaluation method that prevents the execution of arbitrary Python code.</p>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="combinatorial-reasoner">Combinatorial Reasoner<a href="#combinatorial-reasoner" class="hash-link" aria-label="Direct link to Combinatorial Reasoner" title="Direct link to Combinatorial Reasoner">​</a></h2>
<p>This component runs Icosa&#x27;s Combinatorial Reasoning (CR) pipeline on an input to create an optimized prompt with embedded reasons. Sign up for access here: <a href="https://forms.gle/oWNv2NKjBNaqqvCx6" target="_blank" rel="noopener noreferrer">https://forms.gle/oWNv2NKjBNaqqvCx6</a></p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-5">Inputs<a href="#inputs-5" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Description</th></tr></thead><tbody><tr><td>prompt</td><td>Prompt</td><td>Input to run CR on</td></tr><tr><td>openai_api_key</td><td>OpenAI API Key</td><td>OpenAI API key for authentication</td></tr><tr><td>username</td><td>Username</td><td>Username for Icosa API authentication</td></tr><tr><td>password</td><td>Password</td><td>Password for Icosa API authentication</td></tr><tr><td>model_name</td><td>Model Name</td><td>OpenAI LLM to use for reason generation</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-5">Outputs<a href="#outputs-5" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Description</th></tr></thead><tbody><tr><td>optimized_prompt</td><td>Optimized Prompt</td><td>A message object containing the optimized prompt</td></tr><tr><td>reasons</td><td>Selected Reasons</td><td>A list of the selected reasons that are embedded in the optimized prompt</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="duckduckgo-search">DuckDuckGo search<a href="#duckduckgo-search" class="hash-link" aria-label="Direct link to DuckDuckGo search" title="Direct link to DuckDuckGo search">​</a></h2>
<p>This component performs web searches using the <a href="https://www.duckduckgo.com" target="_blank" rel="noopener noreferrer">DuckDuckGo</a> search engine with result-limiting capabilities.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-6">Inputs<a href="#inputs-6" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>input_value</td><td>Search Query</td><td>The search query to execute with DuckDuckGo.</td></tr><tr><td>max_results</td><td>Max Results</td><td>The maximum number of search results to return. Default: <code>5</code>.</td></tr><tr><td>max_snippet_length</td><td>Max Snippet Length</td><td>The maximum length of each result snippet. Default: <code>100</code>.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-6">Outputs<a href="#outputs-6" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td><a href="/concepts-objects#data-object">Data</a></td><td>List of search results as Data objects containing snippets and full content.</td></tr><tr><td>text</td><td>Text</td><td>Search results formatted as a single text string.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="exa-search">Exa Search<a href="#exa-search" class="hash-link" aria-label="Direct link to Exa Search" title="Direct link to Exa Search">​</a></h2>
<p>This component provides an [<a href="https://exa.ai/%5D(Exa" target="_blank" rel="noopener noreferrer">https://exa.ai/](Exa</a> Search) toolkit for search and content retrieval.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-7">Inputs<a href="#inputs-7" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>metaphor_api_key</td><td>Exa Search API Key</td><td>API key for Exa Search (entered as a password)</td></tr><tr><td>use_autoprompt</td><td>Use Autoprompt</td><td>Whether to use autoprompt feature (default: true)</td></tr><tr><td>search_num_results</td><td>Search Number of Results</td><td>Number of results to return for search (default: 5)</td></tr><tr><td>similar_num_results</td><td>Similar Number of Results</td><td>Number of similar results to return (default: 5)</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-7">Outputs<a href="#outputs-7" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>tools</td><td>Tools</td><td>List of search tools provided by the toolkit</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="glean-search-api">Glean Search API<a href="#glean-search-api" class="hash-link" aria-label="Direct link to Glean Search API" title="Direct link to Glean Search API">​</a></h2>
<p>This component allows you to call the Glean Search API.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-8">Inputs<a href="#inputs-8" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>glean_api_url</td><td>String</td><td>URL of the Glean API</td></tr><tr><td>glean_access_token</td><td>SecretString</td><td>Access token for Glean API authentication</td></tr><tr><td>query</td><td>String</td><td>Search query input</td></tr><tr><td>page_size</td><td>Integer</td><td>Number of results per page (default: 10)</td></tr><tr><td>request_options</td><td>Dict</td><td>Additional options for the API request (optional)</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-8">Outputs<a href="#outputs-8" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>results</td><td>List[Data]</td><td>List of search results</td></tr><tr><td>tool</td><td>Tool</td><td>Glean Search tool for use in LangChain</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="google-search-api">Google Search API<a href="#google-search-api" class="hash-link" aria-label="Direct link to Google Search API" title="Direct link to Google Search API">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is in <strong>Legacy</strong>, which means it is no longer in active development as of Langflow version 1.3.</p></div></div>
<p>This component allows you to call the Google Search API.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-9">Inputs<a href="#inputs-9" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>google_api_key</td><td>SecretString</td><td>Google API key for authentication</td></tr><tr><td>google_cse_id</td><td>SecretString</td><td>Google Custom Search Engine ID</td></tr><tr><td>input_value</td><td>String</td><td>Search query input</td></tr><tr><td>k</td><td>Integer</td><td>Number of search results to return</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-9">Outputs<a href="#outputs-9" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>results</td><td>List[Data]</td><td>List of search results</td></tr><tr><td>tool</td><td>Tool</td><td>Google Search tool for use in LangChain</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="google-serper-api">Google Serper API<a href="#google-serper-api" class="hash-link" aria-label="Direct link to Google Serper API" title="Direct link to Google Serper API">​</a></h2>
<p>This component allows you to call the Serper.dev Google Search API.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-10">Inputs<a href="#inputs-10" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>serper_api_key</td><td>SecretString</td><td>API key for Serper.dev authentication</td></tr><tr><td>input_value</td><td>String</td><td>Search query input</td></tr><tr><td>k</td><td>Integer</td><td>Number of search results to return</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-10">Outputs<a href="#outputs-10" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>results</td><td>List[Data]</td><td>List of search results</td></tr><tr><td>tool</td><td>Tool</td><td>Google Serper search tool for use in LangChain</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="mcp-server">MCP server<a href="#mcp-server" class="hash-link" aria-label="Direct link to MCP server" title="Direct link to MCP server">​</a></h2>
<p>This component connects to a <a href="https://modelcontextprotocol.io/introduction" target="_blank" rel="noopener noreferrer">Model Context Protocol (MCP)</a> server and exposes the MCP server&#x27;s tools as tools.</p>
<p>In addition to being an MCP client that can leverage MCP servers, Langflow is also an MCP server that exposes flows as tools through the <code>/api/v1/mcp/sse</code> API endpoint. For more information, see <a href="/integrations-mcp">MCP integrations</a>.</p>
<p>To use the MCP server component with an agent component, follow these steps:</p>
<ol>
<li>Add the MCP server component to your workflow.</li>
<li>In the MCP server component, in the <strong>MCP Command</strong> field, enter the command to start your MCP server. For example, to start a <a href="https://github.com/modelcontextprotocol/servers/tree/main/src/fetch" target="_blank" rel="noopener noreferrer">Fetch</a> server, the command is:</li>
</ol>
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>uvx mcp-server-fetch</span></div></div><br></code></div></div>
<p><code>uvx</code> is included with <code>uv</code> in the Langflow package.
To use <code>npx</code> server commands, you must first install an LTS release of <a href="https://docs.npmjs.com/downloading-and-installing-node-js-and-npm" target="_blank" rel="noopener noreferrer">Node.js</a>.
For an example of starting <code>npx</code> MCP servers, see <a href="/mcp-component-astra">Connect an Astra DB MCP server to Langflow</a>.</p>
<ol start="3">
<li>Click <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-refresh-cw" aria-label="Refresh"><path d="M3 12a9 9 0 0 1 9-9 9.75 9.75 0 0 1 6.74 2.74L21 8"></path><path d="M21 3v5h-5"></path><path d="M21 12a9 9 0 0 1-9 9 9.75 9.75 0 0 1-6.74-2.74L3 16"></path><path d="M8 16H3v5"></path></svg> to get the server&#x27;s list of <strong>Tools</strong>.</li>
<li>In the <strong>Tool</strong> field, select the server tool you want the component to use.
The available fields change based on the selected tool.
For information on the parameters, see the MCP server&#x27;s documentation.</li>
<li>In the MCP server component, enable <strong>Tool mode</strong>.
Connect the MCP server component&#x27;s <strong>Toolset</strong> port to an <strong>Agent</strong> component&#x27;s <strong>Tools</strong> port.</li>
</ol>
<p>The flow looks similar to this:
<img decoding="async" loading="lazy" alt="MCP server component" src="/assets/images/mcp-server-component-1335e50a6b27980cadb99acc22273562.png" width="2546" height="1474" class="img_ev3q"></p>
<ol start="6">
<li>Open the <strong>Playground</strong>.
Ask the agent to summarize recent tech news. The agent calls the MCP server function <code>fetch</code> and returns the summary.
This confirms the MCP server is connected, and its tools are being used in Langflow.</li>
</ol>
<p>For more information, see <a href="/integrations-mcp">MCP integrations</a>.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="mcp-server-sent-events-sse-mode">MCP Server-Sent Events (SSE) mode<a href="#mcp-server-sent-events-sse-mode" class="hash-link" aria-label="Direct link to MCP Server-Sent Events (SSE) mode" title="Direct link to MCP Server-Sent Events (SSE) mode">​</a></h3>
<ol>
<li>In the <strong>MCP Server</strong> component, select <strong>SSE</strong>.
A default address appears in the <strong>MCP SSE URL</strong> field.</li>
<li>In the <strong>MCP SSE URL</strong> field, modify the default address to point at the SSE endpoint of the Langflow server you&#x27;re currently running.
The default value is <code>http://localhost:7860/api/v1/mcp/sse</code>.</li>
<li>In the <strong>MCP Server</strong> component, click <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-refresh-cw" aria-label="Refresh"><path d="M3 12a9 9 0 0 1 9-9 9.75 9.75 0 0 1 6.74 2.74L21 8"></path><path d="M21 3v5h-5"></path><path d="M21 12a9 9 0 0 1-9 9 9.75 9.75 0 0 1-6.74-2.74L3 16"></path><path d="M8 16H3v5"></path></svg> to retrieve the server&#x27;s list of <strong>Tools</strong>.</li>
<li>Click the <strong>Tools</strong> field.
All of your flows are listed as tools.</li>
<li>Enable <strong>Tool Mode</strong>, and then connect the <strong>MCP Server</strong> component to an agent component&#x27;s tool port.
The flow looks like this:
<img decoding="async" loading="lazy" alt="MCP server component" src="/assets/images/mcp-server-component-sse-b8266a86288c1063ee67869373396035.png" width="1195" height="714" class="img_ev3q"></li>
<li>Open the <strong>Playground</strong> and chat with your tool.
The agent chooses the correct tool based on your query.</li>
</ol>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-11">Inputs<a href="#inputs-11" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>command</td><td>String</td><td>MCP command (default: <code>uvx mcp-sse-shim@latest</code>)</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-11">Outputs<a href="#outputs-11" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>tools</td><td>List[Tool]</td><td>List of tools exposed by the MCP server</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="mcp-tools-stdio">MCP Tools (stdio)<a href="#mcp-tools-stdio" class="hash-link" aria-label="Direct link to MCP Tools (stdio)" title="Direct link to MCP Tools (stdio)">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is deprecated as of Langflow version 1.3.
Instead, use the <a href="/components-tools#mcp-server">MCP server component</a></p></div></div>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="mcp-tools-sse">MCP Tools (SSE)<a href="#mcp-tools-sse" class="hash-link" aria-label="Direct link to MCP Tools (SSE)" title="Direct link to MCP Tools (SSE)">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is deprecated as of Langflow version 1.3.
Instead, use the <a href="/components-tools#mcp-server">MCP server component</a></p></div></div>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="python-code-structured-tool">Python Code Structured Tool<a href="#python-code-structured-tool" class="hash-link" aria-label="Direct link to Python Code Structured Tool" title="Direct link to Python Code Structured Tool">​</a></h2>
<p>This component creates a structured tool from Python code using a dataclass.</p>
<p>The component dynamically updates its configuration based on the provided Python code, allowing for custom function arguments and descriptions.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-12">Inputs<a href="#inputs-12" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>tool_code</td><td>String</td><td>Python code for the tool&#x27;s dataclass</td></tr><tr><td>tool_name</td><td>String</td><td>Name of the tool</td></tr><tr><td>tool_description</td><td>String</td><td>Description of the tool</td></tr><tr><td>return_direct</td><td>Boolean</td><td>Whether to return the function output directly</td></tr><tr><td>tool_function</td><td>String</td><td>Selected function for the tool</td></tr><tr><td>global_variables</td><td>Dict</td><td>Global variables or data for the tool</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-12">Outputs<a href="#outputs-12" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>result_tool</td><td>Tool │ Structured tool created from the Python code</td><td></td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="python-repl-tool">Python REPL Tool<a href="#python-repl-tool" class="hash-link" aria-label="Direct link to Python REPL Tool" title="Direct link to Python REPL Tool">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is in <strong>Legacy</strong>, which means it is no longer in active development as of Langflow version 1.3.</p></div></div>
<p>This component creates a Python REPL (Read-Eval-Print Loop) tool for executing Python code.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-13">Inputs<a href="#inputs-13" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>name</td><td>String</td><td>The name of the tool (default: &quot;python_repl&quot;)</td></tr><tr><td>description</td><td>String</td><td>A description of the tool&#x27;s functionality</td></tr><tr><td>global_imports</td><td>List[String]</td><td>List of modules to import globally (default: [&quot;math&quot;])</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-13">Outputs<a href="#outputs-13" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>tool</td><td>Tool</td><td>Python REPL tool for use in LangChain</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="retriever-tool">Retriever Tool<a href="#retriever-tool" class="hash-link" aria-label="Direct link to Retriever Tool" title="Direct link to Retriever Tool">​</a></h2>
<p>This component creates a tool for interacting with a retriever in LangChain.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-14">Inputs<a href="#inputs-14" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>retriever</td><td>BaseRetriever</td><td>The retriever to interact with</td></tr><tr><td>name</td><td>String</td><td>The name of the tool</td></tr><tr><td>description</td><td>String</td><td>A description of the tool&#x27;s functionality</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-14">Outputs<a href="#outputs-14" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>tool</td><td>Tool</td><td>Retriever tool for use in LangChain</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="searxng-search-tool">SearXNG Search Tool<a href="#searxng-search-tool" class="hash-link" aria-label="Direct link to SearXNG Search Tool" title="Direct link to SearXNG Search Tool">​</a></h2>
<p>This component creates a tool for searching using SearXNG, a metasearch engine.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-15">Inputs<a href="#inputs-15" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>url</td><td>String</td><td>The URL of the SearXNG instance</td></tr><tr><td>max_results</td><td>Integer</td><td>Maximum number of results to return</td></tr><tr><td>categories</td><td>List[String]</td><td>Categories to search in</td></tr><tr><td>language</td><td>String</td><td>Language for the search results</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-15">Outputs<a href="#outputs-15" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>result_tool</td><td>Tool</td><td>SearXNG search tool for use in LangChain</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="search-api">Search API<a href="#search-api" class="hash-link" aria-label="Direct link to Search API" title="Direct link to Search API">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is in <strong>Legacy</strong>, which means it is no longer in active development as of Langflow version 1.3.</p></div></div>
<p>This component calls the <code>searchapi.io</code> API. It can be used to search the web for information.</p>
<p>For more information, see the <a href="https://www.searchapi.io/docs/google" target="_blank" rel="noopener noreferrer">SearchAPI documentation</a>.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-16">Inputs<a href="#inputs-16" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>engine</td><td>Engine</td><td>The search engine to use (default: &quot;google&quot;)</td></tr><tr><td>api_key</td><td>SearchAPI API Key</td><td>The API key for authenticating with SearchAPI</td></tr><tr><td>input_value</td><td>Input</td><td>The search query or input for the API call</td></tr><tr><td>search_params</td><td>Search parameters</td><td>Additional parameters for customizing the search</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-16">Outputs<a href="#outputs-16" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td>Search Results</td><td>List of Data objects containing search results</td></tr><tr><td>tool</td><td>Search API Tool</td><td>A Tool object for use in LangChain workflows</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="serp-search-api">Serp Search API<a href="#serp-search-api" class="hash-link" aria-label="Direct link to Serp Search API" title="Direct link to Serp Search API">​</a></h2>
<p>This component creates a tool for searching using the Serp API.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-17">Inputs<a href="#inputs-17" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>serpapi_api_key</td><td>SecretString</td><td>API key for Serp API authentication</td></tr><tr><td>input_value</td><td>String</td><td>Search query input</td></tr><tr><td>search_params</td><td>Dict</td><td>Additional search parameters (optional)</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-17">Outputs<a href="#outputs-17" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>results</td><td>List[Data]</td><td>List of search results</td></tr><tr><td>tool</td><td>Tool</td><td>Serp API search tool for use in LangChain</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="tavily-ai-search">Tavily AI Search<a href="#tavily-ai-search" class="hash-link" aria-label="Direct link to Tavily AI Search" title="Direct link to Tavily AI Search">​</a></h2>
<p>This component performs searches using the Tavily AI search engine, which is optimized for LLMs and RAG applications.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-18">Inputs<a href="#inputs-18" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>api_key</td><td>Tavily API Key</td><td>Your Tavily API Key.</td></tr><tr><td>query</td><td>Search Query</td><td>The search query you want to execute with Tavily.</td></tr><tr><td>search_depth</td><td>Search Depth</td><td>The depth of the search.</td></tr><tr><td>topic</td><td>Search Topic</td><td>The category of the search.</td></tr><tr><td>max_results</td><td>Max Results</td><td>The maximum number of search results to return.</td></tr><tr><td>include_images</td><td>Include Images</td><td>Include a list of query-related images in the response.</td></tr><tr><td>include_answer</td><td>Include Answer</td><td>Include a short answer to original query.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-18">Outputs<a href="#outputs-18" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td>Data</td><td>The search results as a list of Data objects.</td></tr><tr><td>text</td><td>Text</td><td>The search results formatted as a text string.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="wikidata">Wikidata<a href="#wikidata" class="hash-link" aria-label="Direct link to Wikidata" title="Direct link to Wikidata">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is in <strong>Legacy</strong>, which means it is no longer in active development as of Langflow version 1.3.</p></div></div>
<p>This component performs a search using the Wikidata API.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-19">Inputs<a href="#inputs-19" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>query</td><td>Query</td><td>The text query for similarity search on Wikidata.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-19">Outputs<a href="#outputs-19" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td>Data</td><td>The search results from Wikidata API as a list of Data objects.</td></tr><tr><td>text</td><td>Message</td><td>The search results formatted as a text message.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="wikipedia-api">Wikipedia API<a href="#wikipedia-api" class="hash-link" aria-label="Direct link to Wikipedia API" title="Direct link to Wikipedia API">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is in <strong>Legacy</strong>, which means it is no longer in active development as of Langflow version 1.3.</p></div></div>
<p>This component creates a tool for searching and retrieving information from Wikipedia.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-20">Inputs<a href="#inputs-20" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>input_value</td><td>String</td><td>Search query input</td></tr><tr><td>lang</td><td>String</td><td>Language code for Wikipedia (default: &quot;en&quot;)</td></tr><tr><td>k</td><td>Integer</td><td>Number of results to return</td></tr><tr><td>load_all_available_meta</td><td>Boolean</td><td>Whether to load all available metadata (advanced)</td></tr><tr><td>doc_content_chars_max</td><td>Integer</td><td>Maximum number of characters for document content (advanced)</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-20">Outputs<a href="#outputs-20" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>results</td><td>List[Data]</td><td>List of Wikipedia search results</td></tr><tr><td>tool</td><td>Tool</td><td>Wikipedia search tool for use in LangChain</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="wolfram-alpha-api">Wolfram Alpha API<a href="#wolfram-alpha-api" class="hash-link" aria-label="Direct link to Wolfram Alpha API" title="Direct link to Wolfram Alpha API">​</a></h2>
<p>This component creates a tool for querying the Wolfram Alpha API.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-21">Inputs<a href="#inputs-21" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>input_value</td><td>String</td><td>Query input for Wolfram Alpha</td></tr><tr><td>app_id</td><td>SecretString</td><td>Wolfram Alpha API App ID</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-21">Outputs<a href="#outputs-21" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>results</td><td>List[Data]</td><td>List containing the Wolfram Alpha API response</td></tr><tr><td>tool</td><td>Tool</td><td>Wolfram Alpha API tool for use in LangChain</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="yahoo-finance-news-tool">Yahoo Finance News Tool<a href="#yahoo-finance-news-tool" class="hash-link" aria-label="Direct link to Yahoo Finance News Tool" title="Direct link to Yahoo Finance News Tool">​</a></h2>
<p>This component creates a tool for retrieving news from Yahoo Finance.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-22">Inputs<a href="#inputs-22" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<p>This component does not have any input parameters.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-22">Outputs<a href="#outputs-22" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>tool</td><td>Tool</td><td>Yahoo Finance News tool for use in LangChain</td></tr></tbody></table></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/components-prompts"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Prompts</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/components-vector-stores"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Vector stores</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#use-a-tool-in-a-flow" class="table-of-contents__link toc-highlight">Use a tool in a flow</a></li><li><a href="#arxiv" class="table-of-contents__link toc-highlight">arXiv</a><ul><li><a href="#inputs" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#astra-db-tool" class="table-of-contents__link toc-highlight">Astra DB Tool</a><ul><li><a href="#inputs-1" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-1" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#astra-db-cql-tool" class="table-of-contents__link toc-highlight">Astra DB CQL Tool</a><ul><li><a href="#inputs-2" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-2" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#bing-search-api" class="table-of-contents__link toc-highlight">Bing Search API</a><ul><li><a href="#inputs-3" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-3" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#calculator-tool" class="table-of-contents__link toc-highlight">Calculator Tool</a><ul><li><a href="#inputs-4" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-4" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#combinatorial-reasoner" class="table-of-contents__link toc-highlight">Combinatorial Reasoner</a><ul><li><a href="#inputs-5" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-5" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#duckduckgo-search" class="table-of-contents__link toc-highlight">DuckDuckGo search</a><ul><li><a href="#inputs-6" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-6" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#exa-search" class="table-of-contents__link toc-highlight">Exa Search</a><ul><li><a href="#inputs-7" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-7" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#glean-search-api" class="table-of-contents__link toc-highlight">Glean Search API</a><ul><li><a href="#inputs-8" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-8" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#google-search-api" class="table-of-contents__link toc-highlight">Google Search API</a><ul><li><a href="#inputs-9" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-9" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#google-serper-api" class="table-of-contents__link toc-highlight">Google Serper API</a><ul><li><a href="#inputs-10" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-10" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#mcp-server" class="table-of-contents__link toc-highlight">MCP server</a><ul><li><a href="#mcp-server-sent-events-sse-mode" class="table-of-contents__link toc-highlight">MCP Server-Sent Events (SSE) mode</a></li><li><a href="#inputs-11" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-11" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#mcp-tools-stdio" class="table-of-contents__link toc-highlight">MCP Tools (stdio)</a></li><li><a href="#mcp-tools-sse" class="table-of-contents__link toc-highlight">MCP Tools (SSE)</a></li><li><a href="#python-code-structured-tool" class="table-of-contents__link toc-highlight">Python Code Structured Tool</a><ul><li><a href="#inputs-12" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-12" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#python-repl-tool" class="table-of-contents__link toc-highlight">Python REPL Tool</a><ul><li><a href="#inputs-13" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-13" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#retriever-tool" class="table-of-contents__link toc-highlight">Retriever Tool</a><ul><li><a href="#inputs-14" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-14" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#searxng-search-tool" class="table-of-contents__link toc-highlight">SearXNG Search Tool</a><ul><li><a href="#inputs-15" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-15" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#search-api" class="table-of-contents__link toc-highlight">Search API</a><ul><li><a href="#inputs-16" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-16" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#serp-search-api" class="table-of-contents__link toc-highlight">Serp Search API</a><ul><li><a href="#inputs-17" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-17" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#tavily-ai-search" class="table-of-contents__link toc-highlight">Tavily AI Search</a><ul><li><a href="#inputs-18" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-18" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#wikidata" class="table-of-contents__link toc-highlight">Wikidata</a><ul><li><a href="#inputs-19" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-19" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#wikipedia-api" class="table-of-contents__link toc-highlight">Wikipedia API</a><ul><li><a href="#inputs-20" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-20" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#wolfram-alpha-api" class="table-of-contents__link toc-highlight">Wolfram Alpha API</a><ul><li><a href="#inputs-21" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-21" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#yahoo-finance-news-tool" class="table-of-contents__link toc-highlight">Yahoo Finance News Tool</a><ul><li><a href="#inputs-22" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-22" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li></ul></div></div></div></div></main></div></div></div><div style="position:fixed;right:20px;bottom:20px;z-index:100;display:flex;align-items:center;gap:10px;cursor:pointer"><div style="background-color:#f6f6f6;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px rgba(0,0,0,0.1)"><img src="/img/langflow-icon-black-transparent.svg" style="width:40px" alt="Search"></div></div></div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink