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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="mcp-connection-component">MCP Connection component<a href="#mcp-connection-component" class="hash-link" aria-label="Direct link to MCP Connection component" title="Direct link to MCP Connection component"></a></h2>
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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="legacy-tools-components">Legacy Tools components<a href="#legacy-tools-components" class="hash-link" aria-label="Direct link to Legacy Tools components" title="Direct link to Legacy Tools components"></a></h2>
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They are also given in release notes and Langflow documentation whenever possible.</p>
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The component may have been deprecated in favor of a completely new component, a similar component, or a new version of the same component in a different category.</p>
<p>If there is no obvious replacement, consider whether another component can be adapted to your use case.
For example, many <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-component" aria-hidden="true"><path d="M15.536 11.293a1 1 0 0 0 0 1.414l2.376 2.377a1 1 0 0 0 1.414 0l2.377-2.377a1 1 0 0 0 0-1.414l-2.377-2.377a1 1 0 0 0-1.414 0z"></path><path d="M2.297 11.293a1 1 0 0 0 0 1.414l2.377 2.377a1 1 0 0 0 1.414 0l2.377-2.377a1 1 0 0 0 0-1.414L6.088 8.916a1 1 0 0 0-1.414 0z"></path><path d="M8.916 17.912a1 1 0 0 0 0 1.415l2.377 2.376a1 1 0 0 0 1.414 0l2.377-2.376a1 1 0 0 0 0-1.415l-2.377-2.376a1 1 0 0 0-1.414 0z"></path><path d="M8.916 4.674a1 1 0 0 0 0 1.414l2.377 2.376a1 1 0 0 0 1.414 0l2.377-2.376a1 1 0 0 0 0-1.414l-2.377-2.377a1 1 0 0 0-1.414 0z"></path></svg> <strong>Core components</strong> provide generic functionality that can support multiple providers and use cases, such as the <a href="/components-data#api-request"><strong>API Request</strong> component</a>.</p>
<p>If neither of these options are viable, you could use the legacy component&#x27;s code to create your own custom component, or <a href="/contributing-github-issues">start a discussion</a> about the legacy component.</p>
<p>To discourage use of legacy components in new flows, these components are hidden by default.
In the visual editor, you can 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-sliders-horizontal" aria-hidden="true"><line x1="21" x2="14" y1="4" y2="4"></line><line x1="10" x2="3" y1="4" y2="4"></line><line x1="21" x2="12" y1="12" y2="12"></line><line x1="8" x2="3" y1="12" y2="12"></line><line x1="21" x2="16" y1="20" y2="20"></line><line x1="12" x2="3" y1="20" y2="20"></line><line x1="14" x2="14" y1="2" y2="6"></line><line x1="8" x2="8" y1="10" y2="14"></line><line x1="16" x2="16" y1="18" y2="22"></line></svg> <strong>Component settings</strong> to toggle the <strong>Legacy</strong> filter.</p>
<p>The following Tools components are in legacy status:</p>
<ul>
<li><strong>Calculator Tool</strong>: Replaced by the <a href="/components-helpers#calculator"><strong>Calculator</strong> component</a>.</li>
<li><strong>Python Code Structured</strong>: Replaced by the <a href="/components-processing#python-interpreter"><strong>Python Interpreter</strong> component</a>.</li>
<li><strong>Python REPL</strong>: Replaced by the <a href="/components-processing#python-interpreter"><strong>Python Interpreter</strong> component</a>.</li>
<li><strong>Search API</strong>: Replaced by the <a href="/bundles-searchapi"><strong>SearchApi</strong> bundle</a>.</li>
<li><strong>SearXNG Search</strong>: No direct replacement. Use another provider&#x27;s search component, create a custom component, or use a core component like the <a href="/components-data#api-request"><strong>API Request</strong> component</a>.</li>
<li><strong>Serp Search API</strong>: Replace by the <strong>SerpApi</strong> bundle.</li>
<li><strong>Tavily Search API</strong>: Replaced by the <strong>Tavily</strong> bundle.</li>
<li><strong>Wikidata API</strong>: Replaced by the <a href="/bundles-wikipedia"><strong>Wikipedia</strong> bundle</a>.</li>
<li><strong>Wikipedia API</strong>: Replaced by the <a href="/bundles-wikipedia"><strong>Wikipedia</strong> bundle</a>.</li>
<li><strong>Yahoo! Finance</strong>: Replaced by the <strong>Yahoo! Search</strong> bundle.</li>
</ul>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="see-also">See also<a href="#see-also" class="hash-link" aria-label="Direct link to See also" title="Direct link to See also"></a></h2>
<ul>
<li><a href="/components-data#api-request"><strong>API Request</strong> component</a></li>
<li><a href="/components-data#news-search"><strong>News Search</strong> component</a></li>
<li><a href="/components-data#web-search"><strong>Web Search</strong> component</a></li>
<li><a href="/bundles-bing"><strong>Bing</strong> bundle</a></li>
<li><a href="/bundles-duckduckgo"><strong>DuckDuckGo</strong> bundle</a></li>
<li><a href="/bundles-exa"><strong>Exa</strong> bundle</a></li>
<li><a href="/bundles-google"><strong>Google</strong> bundle</a></li>
<li><a href="/bundles-serper"><strong>Serper</strong> bundle</a></li>
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