Context7

About Context7

Context7 provides up-to-date code examples and documentation for LLMs and AI code editors. Its MCP connector brings current library context into assistant workflows, reducing tab switching and helping generated code avoid outdated APIs, nonexistent methods, and stale implementation patterns.

What can you do with the Context7 MCP server

• Context7 resolves a general library name into a Context7-compatible library ID.
• Context7 retrieves relevant documentation using an exact library ID and a user question or task.
• Context7 places up-to-date, version-specific documentation and code examples into the assistant's context.
• Context7 can match documentation for a specified library version.
• Context7 can skip library matching when the prompt includes an exact Context7 library ID.

Common use cases

• Use Context7 to create Next.js middleware that validates a JWT cookie and redirects unauthenticated users.
• Use Context7 to configure a Cloudflare Worker to cache JSON API responses for five minutes.
• Use Context7 to find guidance for migrating from Next.js 15 to Next.js 16.
• Use Context7 to retrieve the Supabase email and password sign-up API documentation.

Before you connect

• Manual MCP setup requires configuring https://mcp.context7.com/mcp in an MCP client and passing an API key in the CONTEXT7_API_KEY header.
• An API key is recommended for higher rate limits and is available from the Context7 dashboard.
• The optional ctx7 CLI setup path requires Node.js 18 or newer.

Limitations

• Context7 does not guarantee the accuracy, completeness, or security of community-contributed library documentation.
• Projects listed in Context7 are developed and maintained by their respective owners, not by Context7.
• The API backend, parsing engine, and crawling engine are private and are not included in the MCP server source repository.