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AGENT INFRASTRUCTURE · ESSENTIAL

AgentMail

Email inboxes for AI agents, via API (YC, General Catalyst).

Visit agentmail.to ↗@agentmail on X ↗

What AgentMail does

Email inboxes for AI agents, via API (YC, General Catalyst). API to create and manage real email inboxes and custom domains for agents, so they can send, receive and reply to email. Raised a $6M seed.

Good for

  • Give an outreach or support agent its own inbox
  • Agents that handle email-based workflows (invoices, signups)

Try this in 10 minutes

  1. Give an outreach or support agent its own inbox. Use the free plan: pick one real example from your own business and try just that.
  2. Read the quick-start and note which no-code tools (n8n, Make, Zapier, Claude) it connects to.
  3. Run the free example or demo end to end.

Mini-tasks based on common small-business uses for this tool.

Honest take

No red flags in our notes so far

  • Useful building block for agent demos and client automations.

Pricing

Free $0; Developer $20/mo (10 inboxes, 10k emails/mo); higher self-serve tiers and enterprise; add-ons $2/mo per inbox or domain.

Prices as listed by the maker when we last checked (2026-10-18); usually in US dollars. Check the website for current prices.

Latest update

No major updates recorded since we added it.

Is AgentMail worth it? Quick answers

Is AgentMail worth it?

AgentMail is one of the tools we rate as essential to know about in the Agent infrastructure category. Useful building block for agent demos and client automations. There is a free tier, so you can test it before paying.

How much does AgentMail cost?

Free $0; Developer $20/mo (10 inboxes, 10k emails/mo); higher self-serve tiers and enterprise; add-ons $2/mo per inbox or domain.

What is AgentMail used for?

Email inboxes for AI agents, via API (YC, General Catalyst). Typical uses: give an outreach or support agent its own inbox; agents that handle email-based workflows (invoices, signups).