Product · Published 2026-09-28 · Updated 2026-09-28 · AgentiSend
About AgentiSend
AgentiSend is a transactional email API for AI agents. A new key starts with a budget, a refusal names the fix, and one switch stops sending.
AgentiSend is a transactional email API for AI agents. Developers, and the agents they run, send mail through it.
A sending domain is added on the account and checked against the DNS records on the domains guide. After those records match, mail can be sent from that domain. A send is a request to the API, or a tool call on the MCP server. The quickstart is the shortest path. Each accepted message is kept in a log you can read.
Every new API key is created with a send budget. When a send is refused, the response names a code, the message, and what to do next. A kill switch stops sending. An approval queue can hold a send until it is approved. Repeated sends that look like a loop are held. Those controls are listed on the guardrails page.
Write to hello@agentisend.com. The support guide says how a request is opened. To report abuse, use the same address and the acceptable use policy.
Plans and limits are on the pricing page. The reference is the docs.