Context7 MCP Server

Context7 MCP - Up-to-date Code Docs For Any Prompt

Without Context7

LLMs rely on outdated or generic information about the libraries you use. You get:

❌ Code examples are outdated and based on year-old training data
❌ Hallucinated APIs that don't even exist
❌ Generic answers for old package versions

✅ With Context7

Context7 MCP pulls up-to-date, version-specific documentation and code examples straight from the source — and places them directly into your prompt.

Add use context7 to your prompt (or set up a rule to auto-invoke)

Create a Next.js middleware that checks for a valid JWT in cookies
and redirects unauthenticated users to /login.

use context7
Configure a Cloudflare Worker script to cache
JSON API responses for five minutes.

use context7
Context7 fetches up-to-date code examples and documentation right into your LLM's context.

No tab-switching, no hallucinated APIs that don't exist, no outdated code generation.

Important Tips

Add a Rule
To avoid typing use context7 in every prompt, add a rule to your MCP client to automatically invoke Context7 for code-related questions:

Cursor: Cursor Settings > Rules
Claude Code: CLAUDE.md
Or the equivalent in your MCP client
Example rule:

Always use Context7 MCP when I need library/API documentation, code generation, setup or configuration steps without me having to explicitly ask.
Use Library Id
If you already know exactly which library you want to use, add its Context7 ID to your prompt. That way, Context7 MCP server can skip the library-matching step and directly continue with retrieving docs.

Implement basic authentication with Supabase. use library /supabase/supabase for API and docs.
The slash syntax tells the MCP tool exactly which library to load docs for.

Specify a Version
To get documentation for a specific library version, just mention the version in your prompt:

How do I set up Next.js 14 middleware? use context7
Context7 will automatically match the appropriate version.

Available Tools
Context7 MCP provides the following tools that LLMs can use:

resolve-library-id: Resolves a general library name into a Context7-compatible library ID.

query (required): The user's question or task (used to rank results by relevance)
libraryName (required): The name of the library to search for
query-docs: Retrieves documentation for a library using a Context7-compatible library ID.

libraryId (required): Exact Context7-compatible library ID (e.g., /mongodb/docs, /vercel/next.js)
query (required): The question or task to get relevant documentation for
More Documentation
More MCP Clients - Installation for 30+ clients
Adding Libraries - Submit your library to Context7
Troubleshooting - Common issues and solutions
API Reference - REST API documentation
Developer Guide - Run Context7 MCP locally