Resent by Agentraa is a transactional email API platform for developers. It provides REST APIs, a dashboard, multi-provider failover, tiered IP pools, domain verification, and EU-hosted infrastructure for sending automated emails.
Resent is built for developers and engineering teams who need reliable transactional email — welcome emails, OTPs, password resets, receipts, and notifications — without managing SMTP servers or deliverability infrastructure.
Resent offers a free plan with 100 emails per day, a Pro plan at $20 per month with 50,000 emails per day, and custom Enterprise pricing for high-volume senders.
No. Resent is optimized exclusively for transactional email. Bulk marketing campaigns are not supported.
One API to send, one dashboard to debug, one platform to own your deliverability. Resent by Agentraa handles the DNS, the IPs, the warm-up, and the failover — so you don't have to.
Trusted by teams building at scale
What makes Resent different
Reliability
Resent by Agentraa routes through SES, Mailgun, and Brevo with a circuit-breaker that fails over in under 200ms. Your users never see a bounce caused by a provider outage.
// Automatic failover — invisible to you
await resent.emails.send({ ... });
// Provider: ses ✓
// Provider: mailgun ✓ (fallback)
// Provider: brevo ✓ (fallback)Deliverability
Enterprise customers send from Tier 1 IPs warmed over 16 weeks. Free plans use Tier 3. Reputation damage from one tenant never touches another.
// enterprise → Tier 1 IPs (16-week warmup)
// pro → Tier 2 IPs (8-week warmup)
// free → Tier 3 IPs (isolated pool)
// dedicated → your own IP, $10/moSecurity
Keys are SHA-256 hashed at rest, shown once, and revokable in one request. IP allowlisting, permission scopes, and Redis-cached lookups on every call.
const key = await resent.apiKeys.create({
name: "Production",
permissions: ["emails:send"],
allowedIps: ["203.0.113.0/24"],
});
// key.secret shown once. Never stored.Free plan includes 100 emails/day. No credit card required.