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Context7

MCP server and CLI that put current library docs into AI coding assistants

Context7 is an MCP server from Upstash. It gives AI coding assistants up-to-date, version-specific documentation and code examples for the libraries you use. Add "use context7" to a prompt, or name a library ID such as /vercel/next.js. The server has two tools: resolve-library-id and query-docs.

It works in two modes: as an MCP server, or as the ctx7 CLI with a skill for your agent (set up with npx ctx7 setup). Use the hosted server at mcp.context7.com, or run it on your computer with Node.js. The docs give setup steps for more than 30 clients, including Cursor, Claude Code, VS Code and Codex.

The MCP server code is open source under the MIT licence. The API backend, parser and crawler are private. Plans (USD): Free, $0, 1,000 API calls a month, public repositories. Pro, $10 per seat per month, 2,000 calls per seat, then $5 per 1,000 calls, private repositories at $5 per 1M parsing tokens. Enterprise, custom price, with SSO and self-hosting.

适用于

Developers who use AI coding assistants such as Cursor, Claude Code or VS Code and want current library docs in their prompts. The Pro plan is for teams with private repositories; Enterprise is for companies that need SSO or self-hosting.

使用场景

Get current docs for a library version inside a prompt
Look up a library and its docs from the terminal with ctx7
Add a rule so the agent uses Context7 for library questions
Add private repositories as doc sources for a team
Add or claim a public library so agents get its docs
Run the MCP server locally over stdio or HTTP

的替代方案

Firecrawl MCP
Returns version-specific library docs and code examples by library ID; Firecrawl MCP scrapes general web pages. Context7's free plan has 1,000 API calls a month.
Brave Search MCP Server
Gives curated, version-specific library documentation instead of web search results, and has a free plan with no per-request charge.
Figma MCP Server
The MCP server code is open source (MIT) and can run on your own computer; Figma's server code is not published and its calls are rate-limited by Figma plan and seat.

Context7的替代选项 3

MCP 服务器

Brave Search MCP Server

Brave's official MCP server that gives AI agents the Brave Search API

开源 API / CLI

Searches the whole web, news, images, videos and local businesses, not only library documentation.

MCP 服务器

Figma MCP Server

Figma's official MCP server that gives AI agents design context from Figma

免费增值 Web Mac Windows API / CLI

Gives agents design data from Figma files (variables, components, layout) and can write frames and components back to the Figma canvas; Context7 gives library documentation.