Context7
About
A real-time documentation MCP server by Upstash. Injects up-to-date, version-specific official library docs and code examples into coding agents, eliminating outdated-API hallucinations.
Our Verdict
Context7 brings developer capabilities to the MCP ecosystem. Its GitHub popularity reflects community trust, and the standardized protocol ensures broad compatibility across AI clients.
Pricing
Use Cases
- Integrating developer capabilities into AI agent workflows
- Building custom AI-powered tools with Context7
- Enhancing AI agent functionality with standardized MCP access
Pros
- Context7 provides standardized MCP protocol access
- Open source with 60,089 GitHub stars
- Active development and community support
Cons
- Requires MCP-compatible client (Claude, Cursor, etc.)
- Setup complexity varies by client
- Some features may depend on client capabilities
Installation
npx -y @upstash/context7-mcpFrequently Asked Questions
What problem does Context7 solve?
AI coding assistants often hallucinate outdated library APIs. Context7 injects up-to-date, version-specific documentation and code examples straight into the prompt, eliminating stale-training-data hallucinations at the source.
How do I install Context7 in Cursor?
Add the command npx -y @upstash/context7-mcp in Cursor MCP settings; for Claude Code use claude mcp add context7 -- npx -y @upstash/context7-mcp. Then just append "use context7" to your prompt.
Is Context7 free? Are there rate limits?
Open source and free to use — you can start without an API key. Anonymous requests are rate-limited; registering for a free key at context7.com raises the limit. Officially maintained by Upstash.