Context7 MCP
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Inject version-specific docs for 50+ frameworks into agent context.
Solves the 'AI generates outdated code' problem. Indexes current docs for popular frameworks (React, Next.js, FastAPI, Prisma, Stripe, etc.); agents call it before writing framework-specific code. The most-installed MCP server on FastMCP as of mid-2026.
Strengths
- Solves stale-training-data problem directly
- Versioned docs per framework
- Top-1 install count
Tradeoffs
- Docs coverage depends on what's indexed