context7-cli

# ctx7 CLI The Context7 CLI does two things: fetches up-to-date library documentation and sets up Context7 MCP for your editor. Make sure the CLI is up to date before running commands: ```bash npm install -g ctx7@latest ``` Or run directly without installing: ```bash npx ctx7@latest <command> ``` ## What this skill covers - **[Documentation](references/docs.md)** — Fetch current docs for any library. Use when writing code, verifying API signatures, or when training data may be outdated. - **[Setup](references/setup.md)** — Configure Context7 MCP for Claude Code / Cursor / OpenCode. ## Quick Reference ```bash # Documentation ctx7 library <name> <query> # Step 1: resolve library ID ctx7 docs <libraryId> <query> # Step 2: fetch docs # Setup ctx7 setup # Configure Context7 MCP (interactive) ctx7 login # Log in for higher rate limits ctx7 whoami # Check current login status ``` ## Authentication ```bash ctx7 login # Opens browser for OAuth ctx7 login --no-browser # Prints URL instead of opening browser ctx7 logout # Clear stored tokens ctx7 whoami # Show current login status (name + email) ``` Most commands work without login. Exception: `ctx7 setup` requires it unless `--api-key` or `--oauth` is passed. Login also unlocks higher rate limits on docs commands. Set an API key via environment variable to skip interactive login entirely: ```bash export CONTEXT7_API_KEY=your_key ``` ## Common Mistakes - Library IDs require a `/` prefix — `/facebook/react` not `facebook/react` - Always run `ctx7 library` first — `ctx7 docs react "hooks"` will fail without a valid ID