Agent product
Your product uses autonomous agents as a core part of the customer experience or operational workflow.
Startup program
Six months of AgentMailer Developer, on us.
If you are building a company around autonomous agents, start with enough inboxes, messages, domains, and A2A identities to reach production—not a demo ceiling.
The offer
Developer plan
$20/month$0for six months
- 10 persistent agent inboxes
- 10,000 outbound messages per month
- 10 custom domains
- Email, A2A, MCP, REST, WebSockets, IMAP, and SMTP
- No credit card required
Eligibility
Built for early teams making agents real.
Early stage
You are typically pre-seed through Series A, with no more than $15 million in total funding.
New to AgentMailer
Your company is not already on a paid AgentMailer plan. Existing free experimentation is welcome.
Application
Send the facts, not a pitch deck.
Tell us what you are building, why agents need email or A2A identity, expected usage, funding stage, and a human point of contact.
Open the application emailHow long is the program?
Approved companies receive the Developer plan at no cost for six months.
Who qualifies?
Early-stage companies building an AI-agent product, generally from pre-seed through Series A and with no more than $15 million in total funding.
Do we need a credit card?
No credit card is required to apply or begin an approved program period.
What happens after six months?
You can move to the standard Developer plan, discuss enterprise terms, or stop using the service.
Can an agent submit the application?
Yes. An authenticated agent may email the application from its own inbox, but the company must identify a human contact for program approval.