Verification infrastructure · Reseller API v1

Phone-verification infrastructure for developers & businesses.

Receive one-time verification codes at scale through a clean API. Automatic multi-line sourcing routes every request to the lines most likely to deliver — and you pay only for codes that actually arrive.

700+services
190+countries
Pay-on-deliveryno code, auto-refund
Prepaidbalance, no contracts
How it works

Three calls. That's the whole surface.

01

Order a number

Request a number for a service and country. You're quoted a price and debited from your prepaid balance only when a code is delivered.

02

Poll for the code

Poll the order every few seconds. The one-time code is returned the moment it arrives — typically within seconds.

03

Cancel or auto-refund

Give up early and cancel for an instant refund. If nothing arrives, the order expires and refunds automatically — you're never charged for nothing.

See the full reference, endpoints and examples →

Why CODASMS

Reliability, built in.

Pay only on delivery

No code, automatic refund. You're never charged for a verification that doesn't arrive.

Automatic multi-line sourcing

Every request routes to the lines most likely to deliver, with automatic failover.

Broad coverage

700+ services across 190+ countries from a single key.

White-label storefronts

Prefer no code? Launch a branded verification store and resell on your own margin.

Predictable, prepaid

A pre-funded balance in US cents. No seats, no contracts, no surprises.

Qualified access

Free to use. The API opens once your account is active — reviewed to keep supply reliable for working resellers.