Mailchimp MCP Server

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add mailchimp-mcp-server -- npx -y @cyanheads/mailchimp-mcp-server

{
  "mcpServers": {
    "mailchimp-mcp-server": {
      "args": [
        "-y",
        "@cyanheads/mailchimp-mcp-server"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.mailchimp-mcp-server]
command = "npx"
args = ["-y", "@cyanheads/mailchimp-mcp-server"]

{
  "mcpServers": {
    "mailchimp-mcp-server": {
      "args": [
        "-y",
        "@cyanheads/mailchimp-mcp-server"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "mailchimp-mcp-server": {
      "args": [
        "-y",
        "@cyanheads/mailchimp-mcp-server"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: MAILCHIMP_API_KEY (Mailchimp Marketing API key, including the '-dc' data-center suffix (e.g. 'abc...-us22'). Generate at Mailchimp → Account → Extras → API keys.), MAILCHIMP_BASE_URL (Override the API base URL (for mock servers or testing). Defaults to 'https://{dc}.api.mailchimp.com/3.0' derived from the API key suffix.), MAILCHIMP_TIMEOUT_MS (Per-request timeout in milliseconds.), MAILCHIMP_MAX_RETRIES (Max retry attempts for transient upstream failures (0-10).), MAILCHIMP_CONCURRENCY_LIMIT (Max in-flight upstream requests per workflow tool (1-10).), MCP_HTTP_HOST (The hostname for the HTTP server.), MCP_HTTP_PORT (The port to run the HTTP server on.), MCP_HTTP_ENDPOINT_PATH (The endpoint path for the MCP server.), MCP_AUTH_MODE (Authentication mode to use: 'none', 'jwt', or 'oauth'.), MCP_LOG_LEVEL (Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').). The author declared them in the registry entry; get the values from the project itself.