context7

Context7 Documentation Fetcher

This skill fetches up-to-date documentation and code examples from libraries using the Context7 API.

Standard Workflow

Context7 requires a two-step process:

Step 1: Search for the Library ID

First, search for the library to get its ID:

GET https://context7.com/api/v2/libs/search?libraryName=<library>&query=<context>

Parameters:

• libraryName: The library name (e.g., "react", "nextjs", "fastapi")
• query: Search context to help find the right library

The response contains a results array with library objects. Use the id field from the first result.

Step 2: Get Documentation Context

Use the library ID to fetch relevant documentation:

GET https://context7.com/api/v2/context?libraryId=<id>&query=<question>

Parameters:

• libraryId: The ID from step 1 (e.g., "/vercel/next.js")
• query: Natural language question about the documentation

This returns ranked code snippets and documentation matching your query.

Example Usage

When the user asks about a library:

1. Search for the library: Use WebFetch to call:

   https://context7.com/api/v2/libs/search?libraryName=nextjs&query=routing
   

   Extract the library ID from the response (e.g., "/vercel/next.js")

2. Fetch documentation: Use WebFetch to call:

   https://context7.com/api/v2/context?libraryId=/vercel/next.js&query=How to setup dynamic routes
   

3. Present the results to the user with the relevant code examples and documentation.

Tips for Best Results

• Use specific, detailed queries rather than vague terms
• Include relevant context in the query (e.g., "useState hook with TypeScript" instead of just "state")
• The API works without an API key but has restricted rate limits

Handling Responses