context7-plugin

Overview

Context7 MCP is a Model Context Protocol server that solves a fundamental problem with AI coding assistants: outdated training data. When you ask an LLM to write code using a library, it often generates examples based on old versions or hallucinates APIs that do not exist. Context7 fixes this by fetching current, version-specific documentation and code examples directly from the source and injecting them into your prompt context. Simply add "use context7" to any prompt, or configure a rule for automatic invocation.

Key Features

• Real-time documentation retrieval: Pulls up-to-date docs and code examples for any library, matched to the specific version you need, directly into your LLM context
• Broad client support: Works with Cursor, Claude Code, Opencode, and 30+ other MCP-compatible clients via both remote (HTTP) and local (stdio) connections
• Library resolution tools: Provides resolve-library-id to find the right library and query-docs to fetch relevant documentation based on your specific question or task
• Flexible authentication: Supports API key authentication (free tier available) and OAuth 2.0 for MCP clients that implement the OAuth specification
• Auto-invocation rules: Configure your editor to automatically call Context7 for code-related questions without typing "use context7" every time
• Version-specific lookups: Mention a specific library version in your prompt and Context7 automatically matches the appropriate documentation

Who is this for?

• Developers using AI coding assistants (Cursor, Claude Code, or similar) who are frustrated by outdated code suggestions and hallucinated APIs
• Teams working with rapidly evolving libraries and frameworks where training data quickly becomes stale
• Anyone who wants to eliminate tab-switching between documentation sites and their AI coding environment