Test every OTP flow end to end, without a drawer full of SIMs

Phone verification sits on the critical path of signup, login and account recovery, yet it is one of the hardest steps to test properly. Teams often rely on a few physical SIM cards kept in a drawer, shared test accounts, or mocked SMS providers that never exercise the real delivery path. The result is coverage that looks complete in staging but misses what users actually experience in production.

OTP Route gives QA engineers programmatic access to temporary verification numbers across many countries. Your test requests an activation through the REST API, submits the number to the flow under test, and receives the code through a signed webhook or by polling. Unused activations are refunded automatically, so failed runs do not consume budget. Live inventory varies by service and time, so the API exposes availability that your suite can check before it starts.

Start free OTP Gateway

The problem

⚠️

Physical SIM cards are hard to share across distributed QA teams and CI runners

⚠️

Mocked SMS providers skip the real delivery path and hide template or routing issues

⚠️

Manual code copying makes OTP steps the slowest and flakiest part of regression suites

How OTP Route helps

🧭

Programmatic activations

Request a number for a specific country and service with one API call, then pass it straight into your test. There is no manual SIM handling and no shared phone, and every activation is tied to your account for traceability across test runs and environments.

⚡

Signed webhooks or polling

Receive codes as soon as they arrive through a signed webhook, or poll the activation endpoint if your runner cannot accept inbound traffic. Verify the signature to confirm the payload came from OTP Route before your test consumes the code.

🔐

Automatic refunds

If a code never arrives, the activation is cancelled and the unused amount returns to your wallet. Flaky upstream services do not quietly drain your test budget, and the dashboard history shows exactly which activations completed and which were refunded.

📈

Multi-country coverage

Run the same test against numbers from different countries to check formatting, localised templates and regional routing. Availability per country and service is exposed through the API, so your suite can skip gracefully when inventory is temporarily unavailable.

A typical workflow

Create an API key in the dashboard and fund your USD wallet by card or USDT/USDC

Query availability for the target country and service via the REST API

Request an activation and submit the returned number in your test flow

Receive the code through a signed webhook or by polling the activation endpoint

Complete the assertion and close the activation; unused activations are refunded automatically

FAQ

Can I run OTP tests in parallel?

Yes. Each activation is independent, so parallel test workers can each request their own number. Keep in mind that live inventory for a given service and country varies, so very large parallel batches may need to fall back to other countries or retry later.

What happens to failed test runs?

If an activation does not receive a code within its window, it is cancelled and the amount is refunded to your wallet automatically. Your test should treat this as an environmental condition, such as unavailable inventory or upstream throttling, rather than a product bug, unless your own sender is at fault.

Is OTP Route a replacement for my SMS provider?

No. OTP Route receives codes; it does not send your application's messages. Use it alongside your existing SMS provider to confirm that messages sent by your product, or by third-party services you integrate with, are actually delivered and accepted under real conditions.

Build it on OTP Route

Pay as you go with no monthly fee, USD wallet, signed webhooks and automatic refunds on unused activations.

Create account API docs