Mails.ai

Mails.ai builds email for AI agents. Not marketing email. Not newsletters. Email that agents send, receive, and parse — programmatically. Sign-up is self-serve and live today: free tier, no card. Mails.ai is email infrastructure built for AI agents — a programmatic email API where the inbox primitive is the design center, not an afterthought of a send-first transactional product. Every agent gets its own address, with reply parsing, identity and reputation baked in.

What mails.ai ships today is a live, self-serve API offering inboxes per agent, with structured reply events, six-category prompt-injection scanner, per-agent reputation graph, MCP server, and SDKs in TypeScript and Python. The company outlines a phased plan including receiver-side verification and per-agent budgets, with a focus on agent-centric inbox management.

The platform emphasizes that each agent has its own address and a reply loop, with ingestion, parsing, and reputation metrics built in. It describes a self-serve model, typed SDKs, and an architecture designed for AI agents to operate with structured inbound and outbound mail.

Plans and prices are presented in full on the pricing page, and the product roadmap mentions future features like per-agent budgets, recipient-side reputation verification, and agent-to-agent delivery.

Use cases

• Agents can send and receive email with a working inbox per agent.