Dev Tools

Context7

Fetches current, version-specific documentation and code examples for a named library straight into an agent's context, instead of relying on stale training data.

Publisher

Upstash

View repo ↗

Install

npx -y @upstash/context7-mcp

Context7 resolves a library name (like “Next.js” or “shadcn/ui”) to a version-specific ID, then pulls current documentation and code snippets straight from the source into an agent’s prompt. It works with no signup for basic usage, with a free API key available for higher rate limits.

Why it matters

Coding agents routinely hallucinate APIs for libraries that shipped after their training cutoff or moved fast; Context7 fixes that by grounding answers in documentation fetched live rather than from memory.

Good for

Working with fast-moving frameworks and libraries where an agent’s built-in knowledge is likely outdated or wrong.