Context7

by Upstash

Repository Docs npm

Featured Developer Tools

documentationlibrariescodecontextdeveloper

Summary

Pulls up-to-date, version-specific documentation and code examples for libraries straight into your prompt.

Features

Up-to-date library documentation
Version-specific code examples
Thousands of libraries indexed
Reduces outdated API hallucinations
Works in any MCP client

Installation

Set up this MCP server in your favorite AI agent — copy a ready-made configuration below.

Any MCP-compatible agent

Most agents (Claude, Cursor, Windsurf, VS Code, and more) read a standard mcpServers configuration.

Open your agent's MCP configuration file.
Merge the snippet below into it.
Restart the agent — the "Context7" tools will be available.

{
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": [
        "-y",
        "@upstash/context7-mcp"
      ]
    }
  }
}

Claude Code

Add the server with a single CLI command.

claude mcp add context7 -- npx -y @upstash/context7-mcp

Claude Desktop

Add the server to claude_desktop_config.json (Settings → Developer → Edit Config).

{
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": [
        "-y",
        "@upstash/context7-mcp"
      ]
    }
  }
}

Cursor

{
  "command": "npx",
  "args": [
    "-y",
    "@upstash/context7-mcp"
  ]
}

Description

Context7 by Upstash fetches current, version-specific documentation and code examples for thousands of libraries and injects them into the model's context on demand. It reduces hallucinated or outdated API usage by grounding answers in real, up-to-date docs.