Context7 - Library Documentation Lookup

Look up current library documentation using Context7 API.

Context7 provides up-to-date documentation and code examples for programming libraries. This skill replaces the Context7 MCP server with direct API calls.

Quick Reference

Usage

1. Find a Library ID

First, search for the library to get its Context7 ID:

./scripts/resolve-library.sh react

Output example:

## Library Search Results

| Name | ID | Snippets | Score |
|------|-----|----------|-------|
| React | /facebook/react | 1250 | 95 |
| React Native | /facebook/react-native | 890 | 92 |

2. Query Documentation

Then use the library ID to query specific documentation:

./scripts/query-docs.sh /vercel/next.js 'how to use app router'

Output: Markdown-formatted documentation snippets with code examples.

Authentication

The scripts automatically get the API key from:

1. •Environment variable CONTEXT7_API_KEY (if set)
2. •1Password - item context7 in vault development, field API_KEY

1Password Setup (Recommended)

The key is already stored in 1Password. No setup needed if you have op CLI authenticated.

Manual Setup

If not using 1Password, set the environment variable:

export CONTEXT7_API_KEY="ctx7sk_your_key_here"

Get a key from context7.com → API settings.

Disabling Context7 MCP

Once this skill works, you can disable the MCP server to reduce overhead:

In Claude Code

Edit your MCP config (~/.config/claude-code/mcp.json or mcp_config.json):

{
  "mcpServers": {
    "context7": {
      "disabled": true
    }
  }
}

Or remove the entry entirely.

In Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) and remove or disable the context7 server.

Workflows

• •lookup.md - Step-by-step library documentation lookup

API Reference

This skill calls the Context7 REST API:

• •Base URL: https://context7.com/api
• •Search endpoint: GET /v2/libs/search?query=...&libraryName=...
• •Docs endpoint: GET /v2/context?query=...&libraryId=...&type=txt
• •Auth: Bearer token header

See Also

• •Context7 Documentation
• •writing-skills - Create new golem-powers skills