context7

What it does

MCP server that provides up-to-date code documentation directly to LLMs and AI code editors. Instead of relying on outdated training data, Context7 fetches live documentation for libraries and frameworks.

How to set up

• Add to Claude Desktop config: "context7": { "command": "npx", "args": ["-y", "@upstash/context7-mcp"] }
• Or install globally: npm install -g @upstash/context7-mcp
• Restart your AI client
• Ask about any library — Context7 fetches current docs automatically

Key features

• Live documentation fetching for 1000+ libraries
• Always up-to-date (not limited by training cutoff)
• Works with Claude Desktop, Claude Code, Cursor
• Zero configuration needed