Context7 MCP Server

Context7 fetches up-to-date, version-specific documentation for thousands of libraries and injects it into your AI coding sessions. Instead of hallucinating deprecated APIs, Claude gets real documentation for the exact package version you're using.

Installation & Configuration

Add this block to your claude_desktop_config.json (or your agent framework's MCP config file):

{
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": ["-y", "@upstash/context7-mcp"]
    }
  }
}

Config file location:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/claude/claude_desktop_config.json

Available Tools (2)

• resolve-library-id
• get-library-docs

Use Cases

• Accurate code generation — prevent Claude from using deprecated APIs
• Library onboarding — ask for current docs without leaving your IDE
• Version-aware assistance — get docs for the exact library version you use

Source & Documentation