ctx7 CLI

The Context7 CLI does three things: fetches up-to-date library documentation, manages AI coding skills, and sets up Context7 MCP for your editor.

Make sure the CLI is up to date before running commands:

npm install -g ctx7@latest

Or run directly without installing:

npx ctx7@latest <command>

What this skill covers

• Documentation — Fetch current docs for any library. Use when writing code, verifying API signatures, or when training data may be outdated.

• Skills management — Install, search, suggest, list, remove, and generate AI coding skills.

• Setup — Configure Context7 MCP for Claude Code / Cursor / OpenCode.

Quick Reference

Documentation

ctx7 library <name> <query> # Step 1: resolve library ID ctx7 docs <libraryId> <query> # Step 2: fetch docs

Skills

ctx7 skills install /owner/repo # Install from a repo (interactive) ctx7 skills install /owner/repo name # Install a specific skill ctx7 skills search <keywords> # Search the registry ctx7 skills suggest # Auto-suggest based on project deps ctx7 skills list # List installed skills ctx7 skills remove <name> # Uninstall a skill ctx7 skills generate # Generate a custom skill with AI (requires login)

Setup

ctx7 setup # Configure Context7 MCP (interactive) ctx7 login # Log in for higher rate limits + skill generation ctx7 whoami # Check current login status

Authentication

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. Exceptions: skills generate always requires it; 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:

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

• Repository format for skills is /owner/repo — e.g., ctx7 skills install /anthropics/skills

• skills generate requires login — run ctx7 login first