Compare / Resend
Both are modern email APIs for developers. Here's how they compare.
| Feature | Truncus | Resend |
|---|---|---|
| Infrastructure | Multi-provider (SES + Brevo) | Single SES wrapper |
| Automatic Failover | Circuit breaker (5 failures/60s) | None |
| Failed Email Recovery | Retry queue + dead letter + replay | Lost |
| Data Residency | EU (Ireland + France) | US by default |
| Inbound Continuity | Dual MX records | Single provider |
| Provider Transparency | Every email logs provider | No |
| Multi-tenant Support | Native (tenant_id) | Separate accounts |
| AI Agent Integration | MCP server (197 tools) | CLI (March 2026) |
| React Email | Supported | Supported |
| Marketing Email | No | Yes (Audiences, Broadcasts) |
| Plan | Truncus | Resend |
|---|---|---|
| Free | 3,000 emails/mo | 3,000 emails/mo |
| ~$19-20/mo | $19 — 50,000 emails | $20 — 50,000 emails |
| ~$100/mo | $99 — 300,000 emails | $100 — 200,000 emails |
Migrate in under 30 minutes. Same API patterns, better infrastructure.