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context7-cli

context7-cli

github.com/upstashDevelopment63.9k7.9k installsUpdated today
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About context7-cli

context7-cli is a command-line tool for fetching current library documentation and configuring Context7 MCP for editors. It is aimed at developers and also includes login and account-status commands, with documentation lookup split into ID resolution and retrieval.

Key features

  1. 01Fetch current library documentation
  2. 02Configure Context7 MCP for editors
  3. 03Log in and check account status
  4. 04Resolve library IDs before lookup

Use cases

  1. 01Check current docs while writing code
  2. 02Set up MCP for Claude Code, Cursor, or OpenCode
  3. 03Log in for higher documentation rate limits

MCP support

The CLI can configure Context7 MCP for use with Claude Code, Cursor, and OpenCode.

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/upstash/context7 --skill context7-cli

After installing, type/context7-cliin Claude Code to confirm it loaded.

Bundled filesreferences/docs.mdreferences/setup.md

Details

From the project README

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:

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 Use when writing code, verifying API signatures, or when training data may be outdated.
  • 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

# Setup
ctx7 setup                            # Configure Context7 MCP (interactive)
ctx7 login                            # Log in for higher rate limits
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. 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:

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

Comments

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