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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"><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-6c6df85ce6d01bfafebe3e4247cefc83.png" width="2104" height="1746" 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="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="parameters">Parameters<a href="#parameters" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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="parameters-1">Parameters<a href="#parameters-1" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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 (e.g., <code>4*4*(33/22)+12-20</code>).</td></tr></tbody></table>
<h4 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></h4>
<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="parameters-2">Parameters<a href="#parameters-2" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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="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="parameters-3">Parameters<a href="#parameters-3" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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>
<p>This component allows you to call the Google Search API.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="parameters-4">Parameters<a href="#parameters-4" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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="parameters-5">Parameters<a href="#parameters-5" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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="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="parameters-6">Parameters<a href="#parameters-6" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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>
<p>This component creates a Python REPL (Read-Eval-Print Loop) tool for executing Python code.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="parameters-7">Parameters<a href="#parameters-7" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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="parameters-8">Parameters<a href="#parameters-8" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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="parameters-9">Parameters<a href="#parameters-9" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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>
<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="parameters-10">Parameters<a href="#parameters-10" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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="parameters-11">Parameters<a href="#parameters-11" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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="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>
<p>This component creates a tool for searching and retrieving information from Wikipedia.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="parameters-12">Parameters<a href="#parameters-12" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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="parameters-13">Parameters<a href="#parameters-13" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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>
<h4 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></h4>
<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="parameters-14">Parameters<a href="#parameters-14" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<p>This component does not have any input parameters.</p>
<h4 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></h4>
<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>
<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="parameters-15">Parameters<a href="#parameters-15" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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 (e.g., &quot;!customer_id&quot;).</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>
<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>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="parameters-16">Parameters<a href="#parameters-16" class="hash-link" aria-label="Direct link to Parameters" title="Direct link to Parameters"></a></h3>
<h4 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></h4>
<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 (e.g., &quot;!customer_id&quot;).</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></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" 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