Context7 Documentation Fetcher

Retrieve current library documentation via Context7 API.

Authentication

This skill requires a Context7 API key in CONTEXT7_API_KEY.

Recommended setup options:

1. Export it in your shell profile (global):

export CONTEXT7_API_KEY="your-context7-key"

2. Use a local .env file (per-repo):

cp skills/context7/.env.example .env
set -a; source .env; set +a

Workflow

1. Search for the library

python3 ~/.codex/skills/context7/scripts/context7.py search "<library-name>"

Example:

python3 ~/.codex/skills/context7/scripts/context7.py search "next.js"

Returns library metadata including the id field needed for step 2.

2. Fetch documentation context

python3 ~/.codex/skills/context7/scripts/context7.py context "<library-id>" "<query>"

Example:

python3 ~/.codex/skills/context7/scripts/context7.py context "/vercel/next.js" "app router middleware"

Options:

• --type txt|md - Output format (default: txt)
• --tokens N - Limit response tokens

Quick Reference

Task	Command
Find React docs	search "react"
Get React hooks info	context "/facebook/react" "useEffect cleanup"
Find Supabase	search "supabase"
Get Supabase auth	context "/supabase/supabase" "authentication row level security"

When to Use

• Before implementing any library-dependent feature
• When unsure about current API signatures
• For library version-specific behavior
• To verify best practices and patterns