Agentmail pricing
Agentmail starts at $0/mo and has a free tier, with self-serve signup.
Last checked 2026-09-01. Verify on the vendor's own page before you commit spend.
Plans
| Plan | Price | Included |
|---|---|---|
| Free | $0/month | 3 inboxes, 3,000 emails/month, 3 GB storage |
| Developer | $20/month | 10 inboxes, 10,000 emails/month, 10 GB storage, 10 custom domains, 2 organization seats |
| Startup | $200/month | 150 inboxes, 150 custom domains, 10 organization seats |
| Enterprise | Custom | Unlimited inboxes available, usage-based pricing |
The Free plan at $0/month covers 3 inboxes, 3,000 emails/month, 3 GB storage, which is where an agent would start. The top plan (Enterprise) is quoted rather than listed, so anything at that volume goes through a person.
Can an agent buy this on its own?
A price is only half the question. The other half is whether software can get from landing on the site to making a paid call without a person, which is what the AgentReady measures under adopt.
For Agentmail, it can create an account itself; API credentials can be created over the API.
Against that, a sales call gates access; the signup flow assumes a human at a browser. Each of those is a point where an unattended run stops and waits for a human.
That works out to 80/100 on adopt, against 84/100 overall.
What you are paying for
AgentMail is an email inbox API for AI agents. It gives agents their own email inboxes to send, receive, and act upon emails, allowing them to assume their own identity and communicate via email with services, people, and other agents.
Next
Agentmail's full agent-readiness profile breaks down all 41 signals. Alternatives to Agentmail ranks what else does the same job.
An agent can fetch this as data: GET /v1/pricing?domain=agentmail.to