attachmentId
The attachment ID (shown in enhanced email display)
How to use it
attachmentId is exposed by the Gmail MCP Server MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the attachmentId tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.
Install Gmail MCP Server
$
npx -y @smithery/cli install @gongrzhe/server-gmail-autoauth-mcp --client claude