Wijo Number is a SaaS platform built by lizardbot for receiving SMS verification codes on real US mobile numbers. Users pick the app, see the price, reserve a number and get the code on screen in real time. It runs on a prepaid balance, charges per verification with no subscription, and includes a dashboard, a documented API and two-factor authentication.
The challenge: fast, dependable verification
Someone waiting on a verification code wants three things: speed, a clear price and no lost money if the code never arrives. A service that handles balances and messages also needs serious controls, so no one sees another user's session and no one gets charged twice.
The solution: product, dashboard and API
We designed a three-step flow: pick the app, reserve a number, receive the code. The code shows up on screen in real time without reloading, and each verification's status updates live.
Pricing is pay per verification on a prepaid balance. The exact price shows before you reserve, and if the code does not arrive, the balance is refunded automatically.
SaaS platform features
- Non-VoIP US mobile numbers, reserved exclusively for 15 minutes.
- Real-time code delivery and live status tracking.
- Automatic refund to the balance when no code arrives.
- User dashboard to sign up, top up the balance and manage verifications.
- Documented API with per-key rate limits and a log of every call.
Security by design
The platform includes two-factor authentication with an authenticator app, atomic transactions on every reservation, sessions visible only to their owner, hashed API keys and idempotent webhooks so a duplicate event never changes a balance. It is the approach we describe on our cybersecurity page.
What you can see today, and the services used
Wijo Number is live at wijonumber.com, with sign-up, dashboard and API available. The project brings together web and SaaS development, API design and automation of processes such as charges and refunds.
Frequently asked questions
What did lizardbot build for Wijo Number?
We built the whole product: the experience for choosing an app and reserving numbers, the user dashboard with balance and verifications, and the documented API with its keys. We also built the security layer, including 2FA, atomic transactions and idempotent webhooks.
Can you build a SaaS platform with an API for my idea?
Yes. We start with discovery to define users, pricing model and scope, then move through design, development, security and QA, and launch. A full app usually takes 6 to 12 weeks, and the source code is yours.
How does Wijo Number charge?
It uses a prepaid balance and charges per verification, with no subscription. The exact price is shown before you reserve a number, and if the code does not arrive, the balance is refunded automatically. Current prices are listed on wijonumber.com.