Context7
Context7 is an MCP server that injects up-to-date, version-specific library documentation directly into LLM prompts. Add "use context7" to any coding prompt and it fetches current docs for the library you're working with, eliminating hallucinated APIs and outdated code examples. Works with Claude Desktop, Cursor, Windsurf, and any MCP-compatible editor.
Context7 is currently grouped under Code Assistant, which makes it easier to evaluate through workflow fit instead of isolated features alone. Based on the available data, it leans most heavily toward Fetches current, version-specific library documentation on demand and Preventing LLMs from hallucinating deprecated or non-existent API methods. The listed license is MIT, which is useful when adoption constraints matter. It also shows measurable community traction with 57.3k GitHub stars.
Features
Why choose it
Trade-offs
Compatibility
Quick start
Use cases
How it compares
Alternatives
Related searches
Comments
- JJesse HarrisMay 15, 2026
The date integration saves writing a lot of boilerplate. Good documentation, reduces onboarding time.
- EEllis LeeMay 13, 2026
Setup was straightforward, robust config and running in minutes. The robust performance is impressive for an open-source tool.
- RRiley NguyenMay 7, 2026
Wrote about Context7 in my developer tools newsletter — it's the MCP server I recommend first to anyone doing LLM-assisted coding.
- CCasey ClarkMay 6, 2026
for keeping LLMs grounded in current API docs this is the most practical MCP server i've added to my setup
- RRiley ZhangMay 5, 2026
Was tired of AI giving me outdated code examples. This fixes that.
- Riley ChenApr 23, 2026
The editors coverage is surprisingly complete. The production-grade performance is impressive for an open-source tool.
- PParker PatelApr 2, 2026
Used this for reliable automation — reliable under load. Works reliably in production environments.
- PPhoenix NguyenMar 13, 2026
Setup was straightforward, solid config and running in minutes. Integrates well with existing editors setups.
- Avery ChenFeb 22, 2026
works well alongside other MCP servers. no conflicts, clean separation of concerns
- SShawn ChenJan 28, 2026
Context7 solved a real problem — LLMs hallucinating API methods that were deprecated 2 versions ago. Current docs in context, current answers.
- JJustice MartinezJan 8, 2026
Integrates cleanly with Claude Desktop and other MCP-compatible editors. The latency on doc retrieval is low enough that it doesn't interrupt flow.
- CCasey ChenDec 29, 2025
Cut our LLM-assisted coding error rate noticeably after adding Context7 to our Claude setup. The up-to-date documentation retrieval is the key.
- RRobin BrownDec 24, 2025
just add 'use context7' to any coding prompt and it pulls the right docs. zero configuration for common libraries
- SSage ZhangDec 4, 2025
The library coverage is broad and keeps expanding. Found support for most of the packages in our stack.