Help Center & API Docs

sms-to.it provides a bridge between your email, our API, and the cellular network. You can send SMS messages by sending an email to a specific address or by using our REST API.

To prevent spam, you must verify any phone number you wish to send messages to. Go to "Phones" in your dashboard, add the number, and enter the OTP code.

Requests must include: X-API-USER (UUID), X-API-KEY, and X-API-SECRET. Generate these in Settings.

POST /api/v1/send_sms.php
Payload: {"to": "+15202489160", "message": "Hello"}

Credits are deducted per 160-character segment. Monthly credits do not roll over, so use them within your active billing period.