About Us
Email infrastructure, built to ship
Piisend is a transactional email API for developers and automated workflows. One REST call to send OTPs, receipts, and lifecycle mail—with templates, DNS verification, and delivery logs included.
Built for production sends
POST to a single REST endpoint, attach templates with variables, verify custom domains via DNS, and subscribe to webhooks for delivery, bounce, and complaint events.
POST /api/v1/emails
{
"to": "user@example.com",
"subject": "Verify your account",
"template_id": "otp-verify"
}Deliverability first
SPF, DKIM, and DMARC alignment on verified domains. Automatic suppressions, bounce handling, and reputation monitoring keep your mail out of spam folders.
Developer experience
API keys per environment, curl and Python examples in the docs, and a live sandbox to inspect payloads before spending quota on real sends.
How teams use Piisend
- Account verification and OTP workflows
- Password resets and security alerts
- Product notifications and lifecycle mail