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.
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.
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.
- ✓ 3,000 emails / month
- ✓ Universal JSON API
- ✓ Shared IP Pool
- ✓ 1-day log retention
Pro Team
For growing startups and production apps.
- ✓ 50,000 emails / month
- ✓ Sub-200ms Global Relay
- ✓ Custom DKIM & Domain Setup
- ✓ Real-time Webhooks
- ✓ 30-day stream log retention
Scale
High volume & critical infrastructure.
- ✓ 500,000 emails / month
- ✓ Dedicated IP Address
- ✓ Priority SLA & 99.99% Uptime
- ✓ Dedicated Engineering Support