Set up Context7 MCP in Claude Desktop

Pull up-to-date documentation and code examples for any library directly into your prompt context using the Context7 API.

Locate the config file

Claude Desktop reads MCP server configuration from the following file:

~/Library/Application Support/Claude/claude_desktop_config.json

Create this file if it does not already exist.

Add the following to your Claude Desktop config file:

json

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

No environment variables needed. Context7 MCP works out of the box without any API keys or tokens.

Restart Claude Desktop. Context7 MCP should appear in your MCP server list with 2 tools available.

This server adds approximately 1,030 tokens to your context window for tool definitions.