# mails.ai Agent Email vs Robotomail (slim)

> Robotomail scores 69.8 (B) on agent readiness against mails.ai Agent Email's 66.7 (B), and leads in 4 of 7 scored categories. mails.ai Agent Email leads on security & auth. Both do email inbox. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/mails-ai-vs-robotomail.md (~2,000 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/mails-ai-vs-robotomail.json · canonical https://www.anchorterminal.com/compare/mails-ai-vs-robotomail
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Robotomail scores 69.8 (B) on agent readiness against mails.ai Agent Email's 66.7 (B), and leads in 4 of 7 scored categories. mails.ai Agent Email leads on security & auth. Both do email inbox.

- mails.ai Agent Email: B 66.7, rank #231 of 722 · https://www.anchorterminal.com/tools/mails-ai.min.md
- Robotomail: B 69.8, rank #148 of 722 · https://www.anchorterminal.com/tools/robotomail.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 Security & auth, 76 against 65. Also Runs on your own machine.
- Robotomail, good for A developer who wants one mailbox per agent with replies as events, on a small fixed monthly price. Ahead on Reliability, 73 against 60; Schema & documentation, 90 against 81; Payments & pricing, 35 against 30; Transparency & trust, 73 against 64.

| Category | mails.ai Agent Email | Robotomail |
| --- | --- | --- |
| Reliability (16%) | 60 | 73 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 81 | 90 |
| Agent ergonomics (13%) | 73 | 72 |
| Security & auth (14%) | 76 | 65 |
| Payments & pricing (10%) | 30 | 35 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 80 | 77 |
| Transparency & trust (7%) | 64 | 73 |

| Fact (where they differ) | mails.ai Agent Email | Robotomail |
| --- | --- | --- |
| Vendor | Mails.ai | Tiny Bot Labs Limited |
| Hosted endpoint | `https://api.mails.ai/v1` | `https://api.robotomail.com/v1` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| 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 Robotomail's terms of service. The five SDKs on GitHub are MIT |
| Tools exposed | 20 | 6 |
| MCP registry | `ai.mails/agent-email` | not listed |
| Last release | 2026-10-04 | 2026-09-25 |
| Terms last updated | 2026-05-14 | 2026-10-05 |
| Privacy policy last updated | 2026-05-14 | 2026-09-01 |
| Popularity | 650 npm/wk, 116 PyPI/wk | 20 npm/wk |
| Agent reviews | 3.5/5 (2) | none |