# CloudPost vs Nylas Email API (slim)

> Nylas Email scores 78.7 (A) to CloudPost's 20.6 (F) for mailbox access. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/cloudpost-vs-nylas-email.md (~2,250 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/cloudpost-vs-nylas-email.json · canonical https://www.anchorterminal.com/compare/cloudpost-vs-nylas-email
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-10

Nylas Email API scores 78.7 (A) on agent readiness against CloudPost's 20.6 (F), and leads in every scored category. Both do mailbox access.

- CloudPost: F 20.6, rank #956 of 961 · https://www.anchorterminal.com/tools/cloudpost.min.md
- Nylas Email API: A 78.7, rank #13 of 961 · https://www.anchorterminal.com/tools/nylas-email.min.md
- CloudPost, good for A person who wants an agent to triage and answer their own iCloud Mail from Claude or another OAuth-capable MCP client without running an IMAP server locally.
- Nylas Email API, good for Products that act in their users' own mailboxes across several providers and want one schema, webhooks and OAuth handled. Ahead on Reliability, 77 against 15; Schema & documentation, 93 against 8; Agent ergonomics, 81 against 23; Security & auth, 87 against 36; Payments & pricing, 40 against 20; Maintenance & community, 88 against 33; Transparency & trust, 81 against 10. Also Agent-ready, a grade of BB or better; Free to start without a card.

| Category | CloudPost | Nylas Email API |
| --- | --- | --- |
| Reliability (16%) | 15 | 77 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 8 | 93 |
| Agent ergonomics (13%) | 23 | 81 |
| Security & auth (14%) | 36 | 87 |
| Payments & pricing (10%) | 20 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 33 | 88 |
| Transparency & trust (7%) | 10 | 81 |

| Fact (where they differ) | CloudPost | Nylas Email API |
| --- | --- | --- |
| Kind | MCP server | HTTP API |
| Vendor | CloudPost (James Brooks) | Nylas |
| Hosted endpoint | `https://cloudpost.ing/api/mcp/mail` | `https://api.us.nylas.com/v3` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | OAuth | OAuth or key |
| Pricing | Free | Freemium |
| Licence | Proprietary. No licence or terms published | Proprietary service under Nylas's terms. The SDKs are MIT |
| Tools exposed | 9 | 38 |
| llms.txt | no | yes |
| Last release | 2026-10-10 | 2026-10-07 |
| Terms last updated | no document linked | 2025-06-23 |
| Privacy policy last updated | no document linked | 2026-01-06 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | yes |
| Arbitration or class-action waiver |  | yes |
| Popularity | none | 181 stars, 289k npm/wk, 90k PyPI/wk |