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 component categories.
MCP Connection component
This component was moved to the Agents category and renamed to the MCP Tools component
Legacy Tools components
Legacy components are longer supported and can be removed in a future release. You can continue to use them in existing flows, but it is recommended that you replace them with supported components as soon as possible. Suggested replacements are included in the Legacy banner on components in your flows. They are also given in release notes and Langflow documentation whenever possible.
If you aren't sure how to replace a legacy component, Search for components by provider, service, or component name. 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.
If there is no obvious replacement, consider whether another component can be adapted to your use case. For example, many Core components provide generic functionality that can support multiple providers and use cases, such as the API Request component.
If neither of these options are viable, you could use the legacy component's code to create your own custom component, or start a discussion about the legacy component.
To discourage use of legacy components in new flows, these components are hidden by default. In the visual editor, you can click Component settings to toggle the Legacy filter.
The following Tools components are in legacy status:
- Calculator Tool: Replaced by the Calculator component.
- Python Code Structured: Replaced by the Python Interpreter component.
- Python REPL: Replaced by the Python Interpreter component.
- Search API: Replaced by the SearchApi bundle.
- SearXNG Search: No direct replacement. Use another provider's search component, create a custom component, or use a core component like the API Request component.
- Serp Search API: Replace by the SerpApi bundle.
- Tavily Search API: Replaced by the Tavily bundle.
- Wikidata API: Replaced by the Wikipedia bundle.
- Wikipedia API: Replaced by the Wikipedia bundle.
- Yahoo! Finance: Replaced by the Yahoo! Search bundle.
