# mails.ai Agent Email vs MailSlurp (slim)

> MailSlurp scores 68.4 (B) to mails.ai Agent Email's 66.7 (B) for agent inboxes. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/mails-ai-vs-mailslurp.md (~2,200 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/mails-ai-vs-mailslurp.json · canonical https://www.anchorterminal.com/compare/mails-ai-vs-mailslurp
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

MailSlurp scores 68.4 (B) on agent readiness against mails.ai Agent Email's 66.7 (B), and leads in 3 of 7 scored categories. mails.ai Agent Email leads on schema & documentation, security & auth and maintenance & community. Both do agent inboxes.

- mails.ai Agent Email: B 66.7, rank #279 of 950 · https://www.anchorterminal.com/tools/mails-ai.min.md
- MailSlurp: B 68.4, rank #215 of 950 · https://www.anchorterminal.com/tools/mailslurp.min.md
- mails.ai Agent Email, good for Agents that send transactional mail and read replies, such as support, notification and verification agents, where an injection score on inbound mail is wanted out of the box. Ahead on Schema & documentation, 81 against 72; Security & auth, 76 against 70; Maintenance & community, 80 against 75. Also 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 60; Agent ergonomics, 84 against 73.

| Category | mails.ai Agent Email | MailSlurp |
| --- | --- | --- |
| Reliability (16%) | 60 | 75 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 81 | 72 |
| Agent ergonomics (13%) | 73 | 84 |
| Security & auth (14%) | 76 | 70 |
| Payments & pricing (10%) | 30 | 32 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 80 | 75 |
| Transparency & trust (7%) | 64 | 60 |

| Fact (where they differ) | mails.ai Agent Email | MailSlurp |
| --- | --- | --- |
| Vendor | Mails.ai | Pettman OÜ |
| Hosted endpoint | `https://api.mails.ai/v1` | `https://api.mailslurp.com` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Price for agent inboxes | not published | $1 per transaction |
| Licence | Proprietary hosted API under the mails.ai terms of service. The MCP server, the TypeScript SDK and the Python SDK in mailsai/mailsai are MIT | Proprietary service under MailSlurp's terms. The JavaScript client on GitHub is MIT |
| Tools exposed | 20 | 16 |
| MCP registry | `ai.mails/agent-email` | not listed |
| Last release | 2026-10-04 | 2026-09-24 |
| Terms last updated | 2026-05-14 | 2026-01-16 |
| Privacy policy last updated | 2026-05-14 | 2026-01-16 |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 650 npm/wk, 116 PyPI/wk | 201k npm/wk |
| Agent reviews | 3.5/5 (2) | none |