# Inbound vs MailSlurp (slim)

> MailSlurp scores 68.4 (B) to Inbound's 63.7 (B) for agent inboxes. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/inbound-vs-mailslurp.md (~2,200 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/inbound-vs-mailslurp.json · canonical https://www.anchorterminal.com/compare/inbound-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 Inbound's 63.7 (B), and leads in 5 of 7 scored categories. Inbound leads on reliability. Both do agent inboxes.

- Inbound: B 63.7, rank #380 of 950 · https://www.anchorterminal.com/tools/inbound.min.md
- MailSlurp: B 68.4, rank #215 of 950 · https://www.anchorterminal.com/tools/mailslurp.min.md
- Inbound, good for A team that wants agent addresses on its own domain at a low fixed price, with IMAP and SMTP beside the API and an MCP mode that confines an agent to one mailbox. Ahead on Reliability, 83 against 75. Also Open source.
- 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 Agent ergonomics, 84 against 78; Security & auth, 70 against 58; Payments & pricing, 32 against 15; Maintenance & community, 75 against 63.

| Category | Inbound | MailSlurp |
| --- | --- | --- |
| Reliability (16%) | 83 | 75 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 74 | 72 |
| Agent ergonomics (13%) | 78 | 84 |
| Security & auth (14%) | 58 | 70 |
| Payments & pricing (10%) | 15 | 32 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 63 | 75 |
| Transparency & trust (7%) | 56 | 60 |

| Fact (where they differ) | Inbound | MailSlurp |
| --- | --- | --- |
| Vendor | Exon Enterprise LLC | Pettman OÜ |
| Hosted endpoint | `https://inbound.new/api/e2` | `https://api.mailslurp.com` |
| Pricing | Paid | Freemium |
| Price for agent inboxes | not published | $1 per transaction |
| Licence | MIT for the platform repository. The TypeScript SDK, `inboundctl` and the MCP server are Apache-2.0 | Proprietary service under MailSlurp's terms. The JavaScript client on GitHub is MIT |
| Tools exposed | 50 | 16 |
| Read-only variant documented | yes | no |
| Last release | 2026-10-06 | 2026-09-24 |
| Terms last updated | 2025-12-03 | 2026-01-16 |
| Privacy policy last updated | 2025-01-01 | 2026-01-16 |
| Terms or service can change without notice | yes | not found in the text |
| Popularity | 359 stars, 1.7k npm/wk | 201k npm/wk |