Context7: Documentation

Updated: 23 July 2026

Connection

Remote: https://mcp.context7.com/mcp (Streamable HTTP), optional CONTEXT7_API_KEY header.
Local: npx -y @upstash/context7-mcp.

Tools

resolve-library-id — find a library by name (e.g. "next.js").
query-docs — fetch docs and examples for a specific question.

Agent flow

Before writing code against an external library: resolve-library-id → query-docs → code from fresh docs, not from memory.