Context7

About

Stop your coding agent from hallucinating old APIs

Context7, built by Upstash, indexes library documentation and serves the relevant, version-specific snippets to your agent on demand. It runs as a hosted MCP server or through the ctx7 CLI, and the MCP server is MIT-licensed on GitHub. Free accounts cover public repos; Pro adds private repo parsing and team access.

Features

• Version-specific docs and code examples
• Hosted MCP server plus ctx7 CLI
• Private repo parsing on Pro
• Works with Claude Code, Cursor, Codex

Install

• Claude Code$claude mcp add --transport http context7 https://mcp.context7.com/mcp
• Codex$codex mcp add context7 --url https://mcp.context7.com/mcp
• Cursor$npx -y mcp-remote https://mcp.context7.com/mcp
• Grok Bot$grokbot mcp add context7 https://mcp.context7.com/mcp