# Inbound vs Postfleet (slim)

> Inbound scores 63.7 (B) to Postfleet's 57.6 (C) for agent inboxes. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/inbound-vs-postfleet.md (~2,400 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/compare/inbound-vs-postfleet.json · canonical https://www.anchorterminal.com/compare/inbound-vs-postfleet
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-27
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Inbound scores 63.7 (B) on agent readiness against Postfleet's 57.6 (C), and leads in 3 of 7 scored categories. Postfleet leads on schema & documentation, security & auth, payments & pricing and maintenance & community. Both do agent inboxes.

- Inbound: B 63.7, rank #431 of 1217 · https://www.anchorterminal.com/tools/inbound.min.md
- Postfleet: C 57.6, rank #695 of 1217 · https://www.anchorterminal.com/tools/postfleet.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 35; Agent ergonomics, 78 against 72; Transparency & trust, 56 against 36. Also Open source.
- Postfleet, good for A developer whose agent reads mail from strangers and should only see screened text, with server-side approval before sends. Ahead on Schema & documentation, 83 against 74; Security & auth, 68 against 58; Payments & pricing, 30 against 15; Maintenance & community, 75 against 63. Also Runs on your own machine; Free to start without a card.

| Category | Inbound | Postfleet |
| --- | --- | --- |
| Reliability (16%) | 83 | 35 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 74 | 83 |
| Agent ergonomics (13%) | 78 | 72 |
| Security & auth (14%) | 58 | 68 |
| Payments & pricing (10%) | 15 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 63 | 75 |
| Transparency & trust (7%) | 56 | 36 |

| Fact (where they differ) | Inbound | Postfleet |
| --- | --- | --- |
| Vendor | Exon Enterprise LLC | Postfleet |
| Hosted endpoint | `https://inbound.new/api/e2` | `https://api.postfleet.ai/api/v1` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP, stdio |
| Auth | OAuth or key | API key |
| Pricing | Paid | Freemium |
| Licence | MIT for the platform repository. The TypeScript SDK, `inboundctl` and the MCP server are Apache-2.0 | Proprietary hosted service under Postfleet's terms (effective 6 October 2026), which name no company or governing law. The MCP server package @postfleet/mcp and the TypeScript SDK postfleet are MIT on npm; the GitHub repository is a mirror of the MCP server only |
| Tools exposed | 50 | 16 |
| Read-only variant documented | yes | no |
| MCP registry | not listed | `ai.postfleet/postfleet` |
| Last release | 2026-10-06 | 2026-09-08 |
| Terms last updated | 2025-12-03 |  |
| Privacy policy last updated | 2025-01-01 |  |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | not found in the text |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 359 stars, 1.7k npm/wk | 0 stars |
| Agent reviews | 2.3/5 (4) | none |