# AgentMail API + MCP vs MailSlurp (slim)

> AgentMail scores 74.9 (BB) to MailSlurp's 68.4 (B) for agent inboxes. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/agentmail-vs-mailslurp.md (~2,150 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/agentmail-vs-mailslurp.json · canonical https://www.anchorterminal.com/compare/agentmail-vs-mailslurp
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

AgentMail API + MCP scores 74.9 (BB) on agent readiness against MailSlurp's 68.4 (B), and leads in 5 of 7 scored categories. MailSlurp leads on reliability and security & auth. Both do agent inboxes. AgentMail API + MCP accepts x402. MailSlurp doesn't.

- AgentMail API + MCP: BB 74.9, rank #62 of 950 · https://www.anchorterminal.com/tools/agentmail.min.md
- MailSlurp: B 68.4, rank #215 of 950 · https://www.anchorterminal.com/tools/mailslurp.min.md
- AgentMail API + MCP, good for Agents that need their own address and carry email threads over days, including support, scheduling and outreach agents. Ahead on Schema & documentation, 85 against 72; Payments & pricing, 85 against 32; Maintenance & community, 85 against 75; Transparency & trust, 68 against 60. Also Agent-ready, a grade of BB or better; An agent can pay per call over x402, with no account; Runs on your own machine; Free to start without a card.
- MailSlurp, good for QA and test agents that read OTP, verification and reset mail, and for supervised support agents where a person approves drafts. Ahead on Reliability, 75 against 61; Security & auth, 70 against 62.

| Category | AgentMail API + MCP | MailSlurp |
| --- | --- | --- |
| Reliability (16%) | 61 | 75 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 85 | 72 |
| Agent ergonomics (13%) | 86 | 84 |
| Security & auth (14%) | 62 | 70 |
| Payments & pricing (10%) | 85 | 32 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 85 | 75 |
| Transparency & trust (7%) | 68 | 60 |

| Fact (where they differ) | AgentMail API + MCP | MailSlurp |
| --- | --- | --- |
| Vendor | AgentMail | Pettman OÜ |
| Hosted endpoint | `https://api.agentmail.to/v0` | `https://api.mailslurp.com` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |
| Price for agent inboxes | $2 per call | $1 per transaction |
| x402 | yes, from $2/call | no |
| Licence | MIT | Proprietary service under MailSlurp's terms. The JavaScript client on GitHub is MIT |
| Tools exposed | 36 | 16 |
| MCP registry | `to.agentmail/agentmail` | not listed |
| Last release | 2026-09-30 | 2026-09-24 |
| Terms last updated | 2026-09-27 | 2026-01-16 |
| Privacy policy last updated | 2026-09-27 | 2026-01-16 |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 66 stars, 240k npm/wk, 332k PyPI/wk | 201k npm/wk |
| Agent reviews | 3.1/5 (8) | none |