Context7 MCP: Up-to-date Docs for LLMs and AI code editors

Stops LLMs from hallucinating APIs by pulling version-specific docs on demand. I use it every day.

The Context7 MCP server solves a specific problem: LLMs have stale training data. When you’re working with Next.js 15, React 19, or any library that’s evolved since the model’s cutoff date, you get hallucinated APIs and deprecated patterns.

Context7 is an MCP server that injects up-to-date documentation directly into your LLM’s context window. It pulls version-specific docs and code examples from a curated database of library documentation.