SMS Verification API for Real Non-VoIP OTP Delivery
Production onboarding flows need more than a dashboard — they need a reliable SMS verification API backed by real non-VoIP inventory. NonVoip Service exposes JSON endpoints to list 2,200+ services, place orders, poll OTPs, and cancel within the allowed window.
The same carrier-grade numbers power both manual and API orders, so automation inherits 99.2% historical delivery success and automatic wallet refunds when SMS never arrives.
Supported apps
Get a temp number USA that works on the platforms you use every day — all with real non-VoIP carrier routes.
Frequently asked questions
Does the SMS verification API use non-VoIP numbers?
Yes. API orders use the same genuine carrier inventory as dashboard orders.
What can I automate with the OTP API?
List services, place verification orders, poll SMS codes, cancel within timeout, and handle wallet billing.
Is there a rate limit?
Production API keys support 60 requests per second with clear error responses.
How are API refunds handled?
When SMS never arrives within the timeout, wallet credit is applied automatically — same as dashboard orders.
Where is the API documentation?
Full REST reference lives at nonvoipservice.com/api-docs/ with JSON examples.