Tools

In Langflow version 1.5, the Tools category was deprecated.

All components that were in this category were replaced by other components or moved to other categories in the Components menu.

important

Many components that were in the Tools category are legacy components. You can use these components in your flows, but they are no longer maintained and may be removed in a future release.

It is recommended that you replace all legacy components with the replacement components described on this page.

Calculator Tool

The Calculator Tool component is a legacy component. Replace this component with the Calculator component in the Helpers category.

MCP Connection

This component was moved to the Agents category and renamed to the MCP Tools component

Python tools

The Python REPL and Python Code Structured components are legacy components. Replace these components with the Python Interpreter component in the Processing category.

Search and API request tools

Many tool components performed basic API calls to public archives or search APIs. All such components in the Tools category are legacy components.

You have two options for replacing these components:

• Use the generic Data components for search and API calls, such as the Web Search component and News Search component.

• Use the provider-specific search and API components in the Bundles category:

  • arXiv bundle
  • Bing bundle
  • DataStax bundle
  • DuckDuckGo bundle
  • Exa bundle
  • Glean bundle
  • Google bundle
  • Icosa Computing bundle
  • LangChain bundle
  • SearchApi bundle
  • SerpApi bundle
  • Tavily bundle
  • Wikipedia bundle
  • Yahoo! Search bundle

SearXNG Search Tool

The SearXNG Search Tool component is a legacy component. Replace this component with a Data component or another metasearch provider's bundle.

This component creates a tool for searching using SearXNG, a metasearch engine. It accepts the following parameters:

Name	Type	Description
url	String	Input parameter. The URL of the SearXNG instance.
max_results	Integer	Input parameter. The maximum number of results to return.
categories	List[String]	Input parameter. The categories to search in.
language	String	Input parameter. The language for the search results.
result_tool	Tool	Output parameter. A SearXNG search tool for use in LangChain.