# Cloudflare Email Service vs MailerSend (slim)

> MailerSend scores 69.5 (B) on agent readiness against Cloudflare Email Service's 67.3 (B), and leads in 2 of 7 scored categories. Cloudflare Email Service leads on schema & documentation, security & auth and transparency & trust. Both do email send. Category scores, facts…

- Full: https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mailersend.md (~2,750 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mailersend.json · canonical https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mailersend
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

MailerSend scores 69.5 (B) on agent readiness against Cloudflare Email Service's 67.3 (B), and leads in 2 of 7 scored categories. Cloudflare Email Service leads on schema & documentation, security & auth and transparency & trust. Both do email send.

- Cloudflare Email Service: B 67.3, rank #212 of 722 · https://www.anchorterminal.com/tools/cloudflare-email-service.min.md
- MailerSend: B 69.5, rank #156 of 722 · https://www.anchorterminal.com/tools/mailersend.min.md
- Cloudflare Email Service, good for Teams already on Cloudflare DNS and Workers that want transactional sending and inbound handling in one account at a low unit price. Ahead on Schema & documentation, 89 against 73; Security & auth, 77 against 62; Transparency & trust, 76 against 64.
- MailerSend, good for An agent sending transactional email for an owner who wants scoped tokens, a hosted MCP server and low entry prices, with SMS and WhatsApp on the same API. Ahead on Reliability, 95 against 51.

| Category | Cloudflare Email Service | MailerSend |
| --- | --- | --- |
| Reliability (16%) | 51 | 95 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 89 | 73 |
| Agent ergonomics (13%) | 72 | 69 |
| Security & auth (14%) | 77 | 62 |
| Payments & pricing (10%) | 30 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 81 | 83 |
| Transparency & trust (7%) | 76 | 64 |

| Fact (where they differ) | Cloudflare Email Service | MailerSend |
| --- | --- | --- |
| Vendor | Cloudflare | MailerSend, Inc. |
| Hosted endpoint | `https://api.cloudflare.com/client/v4` | `https://api.mailersend.com/v1` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Freemium |
| Price for email send | not published | $4 per month (plan) |
| Licence | Proprietary service under Cloudflare's Self-Serve Subscription Agreement and Developer Platform service-specific terms. The official `cloudflare` SDK on npm is Apache-2.0 | Proprietary service under MailerSend's terms of use. The SDKs and the CLI on GitHub are MIT |
| Tools exposed | none | 127 |
| Last release | 2026-09-25 | 2026-09-29 |
| Terms last updated | 2025-09-12 | 2026-10-05 |
| Privacy policy last updated | no date given | 2026-09-17 |
| Customer content may train models | not found in the text | yes |
| Terms restrict automated access | yes | not found in the text |
| Popularity | 3.8M npm/wk, 364k PyPI/wk | 175 stars, 128k npm/wk, 15k PyPI/wk |