Transactional Email API

The email API that just delivers.

Transactional email for developers. One API call and your message hits the inbox in milliseconds — your domain, your SMTP or Amazon SES, zero infrastructure to babysit.

Start for freeRead the docs

3,000 emails/mo free · No credit card · Live in 5 minutes

POST /api/v1/emails/sendLive
Welcome to Acmenow

to: ana@acme.com

Password reset2s

to: dev@startup.io

Invoice #10425s

to: billing@loja.com

Order confirmed9s

to: you@example.com

99.2% delivered0 bounced
98ms avg

Send your first email in 5 minutes

One API call. No SDK required, no vendor lock-in.

curl -X POST https://mail-backend.loce.io/api/v1/emails/send \
  -H "Authorization: Bearer re_123456789" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "you@yourdomain.com",
    "to": "user@example.com",
    "subject": "Hello from Loce Mail",
    "html": "<p>Welcome aboard!</p>"
  }'
Response — 200 OK127ms
{
  "id": "em_abc123def456",
  "status": "sent"
}
Features

Everything you need to deliver email

From transactional emails to complex flows — Loce Mail handles the infrastructure so you don't have to.

Developer first

Clean REST API, predictable JSON, error messages that actually help. Built by devs, for devs.

Sub-second delivery

Emails reach the inbox in milliseconds. Every layer tuned for speed.

Real-time analytics

Track sends, deliveries, opens, clicks and bounces in a live dashboard.

Domain authentication

SPF, DKIM and DMARC with a few DNS records. Land in the inbox, not in spam.

API key management

Create, scope and rotate keys. Full control with detailed audit logs.

Secure by default

TLS everywhere, encrypted secrets, rate limiting. Your data stays yours.
How it works

Up and running in 3 steps

01

Create your account

Sign up free and grab your API key instantly. No credit card needed.
02

Connect SMTP or a domain

Add your SMTP credentials or verify a domain to send through Amazon SES.
03

Start sending

Make a single API call and your email is on its way in milliseconds.
Pricing

Simple, transparent pricing

Start free, scale when you grow. No hidden fees, no surprise charges.

Free

3,000 emails / mo
$0/ mo
  • Sending
  • 1 domain
  • 100 emails a day
Get started
Most popular

Pro

50,000 emails / mo
$20/ mo
Extra: $0.90 / 1,000
  • Sending
  • 10 domains
  • No daily limit
Get started

Scale

100,000 emails / mo
$90/ mo
Extra: $0.90 / 1,000
  • Sending
  • 1,000 domains
  • No daily limit
Get started

Enterprise

Custom volume
Custom
  • Sending
  • Flexible domains
  • No daily limit
Contact sales

Ready to send your first email?

Join the developers who trust Loce Mail for their email infrastructure.

Create free account

No credit card required · Set up in under 5 minutes.