Quickstart

1. Create an API key

Sign up, open API → Keys in the dashboard, and create a key with emails:send (add emails:read to poll status, templates:write for template CRUD). Copy the secret when shown—it is not displayed again.

2. Send your first email

curl -sS -X POST "https://api.piisend.com/api/v1/emails" \
  -H "Authorization: Bearer $PIISEND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "to": ["you@example.com"],
    "subject": "Piisend test",
    "text": "It works."
  }'

More endpoints and patterns in the API reference.

3. Verify delivery

Poll GET /api/v1/emails/{id} or subscribe to webhooks for delivery, bounce, and complaint events. See Sending for status values and Webhooks for signature verification.

• Sending
• Webhooks

4. Production checklist

• Verify a sending domain for branded from addresses
• Create templates for OTP and lifecycle mail
• Review plan quotas before launch traffic