context7

Fetch up-to-date library documentation using Context7 API. Use this skill when the user asks for docs, examples, or help with a specific library/framework (e.g., "look up React docs", "context7 nextjs routing", "fetch docs for fastapi").

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Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/context7

SKILL.md

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:

Search for the library: Fetch https://context7.com/api/v2/libs/search?libraryName=nextjs&query=routing Extract the library ID from the response (e.g., "/vercel/next.js")
Fetch documentation: Fetch https://context7.com/api/v2/context?libraryId=/vercel/next.js&query=How to setup dynamic routes
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