Context7 MCP

Every developer using AI coding assistants has hit the same wall: you ask for help with a library, and the agent confidently generates code using an API that was deprecated two versions ago. Context7 MCP eliminates this problem by giving your agent on-demand access to up-to-date documentation for thousands of libraries and frameworks. When your agent needs to write code that uses a specific package, it can fetch the current docs first and work from accurate information instead of stale training data. The workflow is elegantly simple. Context7 maintains a curated index of documentation for popular open-source projects, continuously updated as new versions are released. Your agent uses two tools: one to resolve a library name into a Context7 identifier, and another to fetch the relevant documentation pages. The retrieved content is compact and structured, designed to fit within context windows without overwhelming the model. This means your agent gets exactly the reference material it needs, not an entire documentation site dumped into the prompt. What makes Context7 particularly valuable is that it requires zero configuration beyond installing the MCP server. No API keys, no accounts, no subscriptions for basic use. It works out of the box with every major MCP client, and the documentation index covers the libraries developers actually use: React, Next.js, Tailwind, Prisma, FastAPI, LangChain, and hundreds more. If you have ever wasted time correcting an AI agent that insisted on using a function signature that no longer exists, this server pays for itself on the first use.