Email

Gives Claude a complete email stack over MCP with seven tools: sendEmail, replyToEmail, listEmails, searchEmails, getEmail, getInboxStatus, and getAccount. You get managed addresses at *.primitive.email that can run JavaScript handlers on inbound messages, plus a chat verb that sends a message and waits for the threaded reply in one round trip. The underlying API does synchronous SMTP delivery so you get back the recipient's queue ID and response code in the same call. Useful when you need an agent to monitor an inbox, handle support threads, or contact other agents and humans without managing your own mail infrastructure. Uses streamable HTTP transport and supports both API keys and OAuth tokens.