upstash/context7

Overview

This skill provides a command-line interface for fetching up-to-date library documentation, managing AI coding skills, and configuring the Context7 MCP for code editors. It centralizes tasks you need when writing code against libraries with possibly stale training data and when installing or generating AI-powered coding capabilities. Use it to keep documentation current, manage a skills registry, and set up Context7 in your editor.

How this skill works

The CLI resolves library identities, fetches live docs, and returns precise API signatures and examples. It also lets you search, install, list, remove, suggest, and generate AI coding skills (generation requires login). Finally, an interactive setup flow configures Context7 MCP for supported editors and services, with non-interactive options via API key or flags.

When to use it

• You need current documentation or API signatures for a library that may be newer than the model's training data.
• You want to search, install, or remove AI coding skills from the Context7 registry.
• You want to auto-suggest relevant skills based on your project's dependencies.
• You need to configure Context7 MCP for Claude Code, Cursor, OpenCode, or similar editors.
• You want to generate a custom skill using AI (requires authentication).

Best practices

• Run npm install -g ctx7@latest or use npx ctx7@latest to ensure the CLI is up to date.
• Always run ctx7 library <name> to resolve the library ID (it requires a leading slash like /owner/name).
• Set CONTEXT7_API_KEY in your environment for non-interactive workflows and higher rate limits.
• Log in with ctx7 login before running commands that require authentication, especially skills generate.
• Use the interactive ctx7 setup for editor integration, or pass --api-key/--oauth for automated CI setups.

Example use cases

• Fetch documentation: resolve a library ID then fetch docs for a specific function or topic in your editor workflow.
• Install skills: add community skills from a GitHub repo using ctx7 skills install /owner/repo.
• Generate a custom skill: run ctx7 skills generate after logging in to produce a tailored coding assistant for your repo.
• Project onboarding: run ctx7 skills suggest to automatically recommend skills based on package.json or other deps.
• Editor integration: run ctx7 setup to configure Context7 MCP for an AI code editor, enabling live docs and skills.