Context7

Context7 is a lightweight, modular MCP-compatible memory and agent protocol server focused on privacy-first, on-device AI agents. It provides up-to-date, version-specific documentation and code examples directly into AI coding assistants and LLM prompts, helping developers avoid outdated or hallucinated APIs and reducing errors in code generation.

Features

• MCP-Compatible Server: Implements the Model Context Protocol (MCP), enabling seamless integration with various AI coding assistants and LLMs.
• Privacy-First, On-Device AI: Designed to run locally, ensuring user privacy and control over data.
• Supports Local and Cloud LLMs: Can be used with both local and cloud-based large language models.
• Persistent, Session-Aware Memory: Maintains session context and persistent memory for enhanced agent interactions.
• Up-to-Date Documentation: Fetches real-time, version-specific documentation and code examples from source repositories.
• Context Injection: Integrates documentation and examples directly into your prompt context for LLMs and coding assistants like Cursor, Windsurf, Claude Desktop, VS Code, Zed, and more.
• No Tab Switching: Eliminates the need to switch tabs or search for docs manually.
• Multiple Installation Methods: Can be installed via Node.js (npx, bun, deno), Docker, and through integrations in various editors and environments.
• Available Tools: Provides utilities like resolve-library-id (to resolve general library names) and get-library-docs (fetch documentation by library ID, with topic/tokens options).
• Open Source: Licensed under MIT, with active development and community contributions.
• Multilingual Documentation: Docs available in multiple languages (English, Chinese, Korean, Spanish, French, Portuguese, Italian, Indonesian, German).

Installation & Integration

• Installable via npx, bunx, or deno.
• Docker support with provided Dockerfile.
• Integrates with:
  • Cursor
  • Windsurf
  • Claude Desktop
  • Claude Code
  • VS Code (and VS Code Insiders)
  • Zed
• Configuration snippets provided for each supported client/editor.

Requirements

• Node.js >= v18.0.0 (for local installs)
• Compatible MCP client/editor (Cursor, VS Code, Windsurf, Claude Desktop, etc.)

Development

• Clone the repo and install dependencies with bun i.
• Build with bun run build.

License

MIT

Links

• GitHub Repository
• Official Website

Pricing

No pricing information is provided; Context7 is open source (MIT licensed).