About Context7
Context7 supplies current, version-specific documentation and code examples to coding agents. It helps an assistant use the right version of a library instead of relying on old training data.
What it does
Context7 indexes documentation for more than 160,000 libraries and serves the relevant pages to an agent while it works. You add it to tools such as Claude, Codex or Cursor, and the agent can then pull the docs it needs. It also offers a grounding API for coding agents, and you can add your own documentation sources.
Key features
- Current docs for more than 160,000 libraries
- Version-specific docs and code examples
- Works with Claude, Codex, Cursor and other agents
- Grounding API for coding agents
- Add your own documentation sources
Who it's for
Developers who use coding agents on fast-moving frameworks will find it useful. Teams that want their agents to stop guessing at library APIs are another good fit.
Pricing and good to know
The project is open source under the MIT license. The hosted service asks you to get an API key, so check the site for any usage limits. Results are only as good as the documentation available for each library, so check the source it cites before you rely on a detail.
Highlights
- Current docs for more than 160,000 libraries
- Version-specific docs and code examples
- Works with Claude, Codex and Cursor
- Grounding API for coding agents
- Add your own documentation sources
