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Context7

Context7 is an MCP server that adds search and knowledge tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Up-to-date code docs for any prompt. It has 62,752 GitHub stars, is released under the MIT license and runs locally with npx -y @upstash/context7-mcp.

github.com/upstash/context7 (opens in a new tab)

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Install Context7

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": [
        "-y",
        "@upstash/context7-mcp"
      ],
      "env": {
        "CONTEXT7_API_KEY": "your-value"
      }
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --env CONTEXT7_API_KEY=your-value --transport stdio context7 -- npx -y @upstash/context7-mcp

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "context7": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@upstash/context7-mcp"
      ],
      "env": {
        "CONTEXT7_API_KEY": "your-value"
      }
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "context7_api_key",
      "description": "CONTEXT7_API_KEY",
      "password": true
    }
  ],
  "servers": {
    "context7": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@upstash/context7-mcp"
      ],
      "env": {
        "CONTEXT7_API_KEY": "${input:context7_api_key}"
      }
    }
  }
}

Claude Code (remote)

claude mcp add --transport http context7 "https://mcp.context7.com/mcp"

The same server is also hosted as a remote MCP endpoint, so nothing runs on your machine.

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

Environment variables

Variables the server reads at startup.

NameRequiredDescription
CONTEXT7_API_KEYsecretNoAPI key for authentication

Tools (3)

Parsed from the Tools section of the README; check the repository for the current list.

  • resolve-library-id

    Resolves a general library name into a Context7-compatible library ID.

  • query

    The user's question or task (used to rank results by relevance)

  • query-docs

    Retrieves documentation for a library using a Context7-compatible library ID.

About Context7

LLMs rely on outdated or generic information about the libraries you use. You get: Context7 pulls up-to-date, version-specific documentation and code examples straight from the source — and places them directly into your prompt.

  • llm
  • mcp
  • mcp-server
  • vibe-coding

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FAQ

Context7 FAQ

Still curious? Email info@appsgit.com.

What is Context7?

Context7 is an MCP server that adds search and knowledge tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Up-to-date code docs for any prompt. It has 62,752 GitHub stars, is released under the MIT license and runs locally with npx -y @upstash/context7-mcp. The source code is at github.com/upstash/context7.

How do I install the Context7 MCP server?

Add the command npx -y @upstash/context7-mcp to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is Context7 free?

The server is open source under the MIT license, so running it is free. It needs credentials (CONTEXT7_API_KEY) for the service it connects to, which may require a paid account.

Is Context7 actively maintained?

The most recent commit was on Oct 6, 2026. The latest release is ctx7@0.5.13, published Oct 5, 2026. appsgit only lists MCP servers with a commit in the last six months and re-checks every server daily.