Postly
UNIVERSAL JSON API — NO SDK REQUIRED

Send Emails with a Simple JSON Request

One HTTP POST endpoint. Pass your API key, recipient, and message in a standard JSON payload. Works natively with any programming language or stack.

99.99%
Uptime Guarantee
< 140ms
Global Latency
100M+
Monthly Emails
POST /v1/send
    curl -X POST https://api.postly.dev/v1/send \
      -H "Content-Type: application/json" \
      -d '{
        "api_key": "postly_live_9f82bc314a...",
        "to": "user@domain.com",
        "subject": "Your Magic Login Link",
        "body": "<p>Click to authenticate instantly.</p>"
      }'
                                

ARCHITECTED FOR SPEED

Pure HTTP JSON Simplicity

Zero SDK installs. Zero complex authentication headers. Send structured JSON payloads from any framework or language.

Universal JSON Endpoint

Works with cURL, JavaScript, Python, PHP, Go, Rust, or any tool capable of making an HTTP POST request.

Sub-200ms Routing

Edge-deployed relay servers globally deliver your password resets and OTPs before your user opens their inbox.

Automated DKIM / DMARC

Automated CNAME record validation and instant key rotations protect your domain sender reputation.

Dark-Mode Analytics

High-contrast real-time stream logs with granular payload introspection and zero telemetry bloat.

Payload Security

End-to-end HTTPS encryption with automatic API key rotation capabilities and rate limiting controls.

Instant Webhooks

Receive real-time JSON webhooks for bounced emails, deliveries, clicks, and spam complaints.

INTERACTIVE CONSOLE

Test the JSON Endpoint

Simulate a live API dispatch. Fill in the JSON request body below and trigger a simulated request to inspect our standardized response schema.

SIMPLE SCALE PRICING

Transparent Pricing for Every Scale

Developer

For side projects and prototyping.

€0 / forever
  • ✓ 3,000 emails / month
  • ✓ Universal JSON API
  • ✓ Shared IP Pool
  • ✓ 1-day log retention
Get Started Free
POPULAR

Pro Team

For growing startups and production apps.

€19 / month
  • ✓ 50,000 emails / month
  • ✓ Sub-200ms Global Relay
  • ✓ Custom DKIM & Domain Setup
  • ✓ Real-time Webhooks
  • ✓ 30-day stream log retention
Upgrade to Pro

Scale

High volume & critical infrastructure.

€149 / month
  • ✓ 500,000 emails / month
  • ✓ Dedicated IP Address
  • ✓ Priority SLA & 99.99% Uptime
  • ✓ Dedicated Engineering Support
Contact Enterprise