Hyvor Relay vs OpenSend
Hyvor Relay
relay.hyvor.comOpenSend
opensend.namuh.coSide by side
| Figure | Hyvor Relay | OpenSend |
|---|---|---|
| Price from | €30/mo | $10/mo |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 3 | 5 |
| Spec score · Email APIs | 8.6 (#5) | 7.3 (#25) |
| Integrations | The self-hosting guide lists built-in Prometheus, Grafana, and Alertmanager integrations for monitoring and observability. | The self-hosting guide documents AWS SES/SNS, PostgreSQL, Redis, S3, Cloudflare DNS automation, and Google OAuth configuration. |
| Product | Hyvor Relay is an open-source, self-hostable email API designed for developers. | OpenSend describes itself as an open email infrastructure platform with a Resend-compatible API, SDK, broadcasts, contacts, and dashboard. |
| Security | The hosting documentation says its HTTP server has built-in application-layer rate limiting and recommends cloud-provider DDoS protection for network-layer attacks. | Dashboard and API routes are tenant-scoped through Better Auth organizations and server-side ownership checks. |
| Webhooks | Real-time event webhooks report deliveries, bounces, domain verifications, and other events. | Outbound webhooks use HMAC signatures with Svix-compatible headers, which recipients should verify before processing events. |
Plans
Hyvor Relay
- Enterprise License€10,000 a year
- Cloud Standard€30 a month
- Self-Hosted Open-SourceFree
OpenSend
- Lite$10 a month
- Starter$19 a month
- Growth$99 a month
- FreePrice not published
- ScalePriced on request
In their own words
Hyvor Relay
Hyvor Relay has no write-up on Specifiction yet; its figures are above.
OpenSend
OpenSend has no write-up on Specifiction yet; its figures are above.