"Gmail login" matching MCP connectors:

Free hosted MCP server that connects ChatGPT and Claude (claude.ai, Claude Code) to multiple Gmail, Google Calendar, Google Drive (read-only) and Google Contacts accounts, Slack workspaces and Notion through one connection URL. Search, read and act across every connected account at once, with a memory shared across your AI assistants. OAuth sign-in. Outlook / Microsoft 365 are not supported.

Lockally EmailOAuth unavailable

com.lockally

Stateful email for AI agents — read inboxes, reply in-thread, draft with approval.

namailu.cz gives your AI agent its own email inbox: read and send mail over MCP, with OAuth.

Disposable test mailboxes on a real domain: send, receive and assert on real email.