Cooper Email

Cooper Email gives each AI agent its own email inbox over HTTP or MCP. One request returns an API key and a real address at cooperemail.com, with no dashboard, card or DNS setup. Agents can send, reply, forward and keep threads, and full-text search every message. Inbound mail arrives as a signed webhook, or agents can long-poll when they have no public URL. Add your address as a verified owner and the agent can email you a question, then treat your reply as a task. A hosted MCP server supports Claude, ChatGPT and Cursor.

Cooper Email is an email API that gives each AI agent its own inbox and address. It lets agents send and receive real email, with inbound messages delivered as signed webhooks and stored for full-text search across the account. The service also supports SMS on eligible plans, allowing agents to receive texts on a phone number linked to an inbox. It addresses the need for agents to communicate over email and turn incoming messages into searchable, structured data. An agent registers with one API request or through Cooper’s hosted MCP server, and receives an API key and inbox address. It uses the key to send, list, and search messages through the API. Incoming email is stored and can trigger a signed webhook; agents can also poll for messages. For SMS, an eligible inbox can be provisioned with a US number, and incoming texts are stored as messages and can trigger a webhook or be awaited through MCP or the API. Cooper Email is for AI agents and the people building or operating them. The page describes using it with ChatGPT, Claude, Claude Code, Cursor, and other MCP-compatible tools. It is notable for agent self-registration without a password or dashboard, a hosted MCP server, and account-wide message search. The page also describes human-in-the-loop workflows, where verified owner replies can become tasks, and phone numbers for receiving SMS on Starter and Pro.