What is AgentMail?
AgentMail is an email inbox API built for AI agents. It gives each agent its own email inbox, similar to how Gmail works for people, so the agent can have a real address of its own.
Developers create and manage inboxes through the API or SDKs in Python, TypeScript, cURL, or a CLI, and can also connect it through MCP. Agents can send and receive email, handle threads and replies, work with attachments, react to realtime events, and search messages semantically. Custom domains and multi-tenancy are also supported. Typical uses include browser agents pulling 2FA codes from email, scheduling assistants, parsing invoices and receipts, and routing support emails.
Key features
- Create real email inboxes via API
- Send, receive, and reply to email within threads
- Attachment handling
- Realtime events and webhooks
- Custom domains and multi-tenancy
- Semantic search and data extraction from emails
Who is it for
- AI agent developers
- Teams building browser automation agents
- Companies building customer service automation
- Developers building executive assistant agents
Pros and cons
- Built specifically for agents rather than retrofitted from human email
- Supports SDKs, MCP, and common agent stacks such as Claude Code and Cursor
- Free tier is limited to 3 inboxes and 3,000 emails per month
- SOC 2 report and SSO only on higher tiers
AgentMail pricing
| Plan | Price | Includes |
|---|---|---|
| Free | 0 USD / month | 3 inboxes, 3,000 emails/month, 100 emails/day, 3 GB storage |
| Developer | 20 USD / month | 10 inboxes, 10,000 emails/month, 10 GB storage, 10 custom domains, 2 seats, email support |
| Startup | 200 USD / month | 150 inboxes, 150 custom domains, 10 seats, SOC 2 report |
Prices copied from AgentMail pricing, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
Is AgentMail free?
Yes, there is a free plan. Free plan: 3 inboxes, 3,000 emails/month, 3 GB storage, no credit card required.
AgentMail alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 Claude Platform (Anthropic API) | 2 USD input / 10 USD output | no | APIs & models |
 Langfuse | 29 USD/mo | yes | APIs & models |
 Runpod | 0.74 USD/mo | trial | APIs & models |
 Cline | not listed | yes | APIs & models |
 Ollama | 20 USD/mo | yes | APIs & models |
 Amazon Bedrock | od 0,20 USD | ? | APIs & models |
All alternatives to AgentMail →
FAQ
What is AgentMail used for?
Email inbox API that gives AI agents their own real email inboxes to send, receive, and search mail.
Is AgentMail free?
Yes, there is a free plan. Free plan: 3 inboxes, 3,000 emails/month, 3 GB storage, no credit card required.
How much does AgentMail cost?
The cheapest paid plan is 20 USD/mo (vendor pricing, October 12, 2026).
What are the best AgentMail alternatives?
Closest alternatives: Claude Platform (Anthropic API), Langfuse, Runpod, Cline, Ollama.
Data checked October 12, 2026 on the vendor website (agentmail.to).