Context7

Fetch up-to-date library documentation and code examples. Requires CONTEXT7_API_KEY environment variable.

When not to use

Skip Context7 for internal/private libraries, stdlib code, raw HTTP/filesystem, shell built-ins, or stable primitives whose signatures haven't changed in years (e.g. json.dumps, os.path).

resolve-library-id

Resolve a package/product name to a Context7 library ID. Call this before query-docs unless the user provides an ID in /org/project format.

• libraryName (required): Official library name (e.g., "Next.js", "Three.js")
• query (required): What the user needs help with — used to rank results by relevance

uv run --script scripts/mcpcall.py resolve-library-id libraryName:"Next.js" query:"app router setup"