A Model Context Protocol (MCP) server that enables Claude Desktop to manage Gmail via natural language interactions with automatic OAuth2 authentication. The server integrates with the Gmail API and supports both Desktop and Web credentials, with global credential storage for convenience (typically at ~/.gmail-mcp/). It can operate in cloud environments using a custom OAuth callback URL. After initial authentication, credentials are reusable across sessions. The server enables sending emails with subject, body, recipients, and optional attachments, supporting plain text, HTML, and multipart messages. It can read emails by ID with robust MIME parsing, search emails using Gmail syntax, and perform comprehensive label management (create, update, delete, list, and get-or-create). Attachment features include enhanced display of filenames, MIME types, sizes, and download IDs, plus the ability to download attachments to the local filesystem. It also provides batch operations for efficiently processing multiple emails, supports international characters, and emphasizes secure, offline-style credential handling. Claude Desktop configuration is straightforward via a JSON mcpServers entry, and the solution supports Docker and cloud deployment scenarios.