zendit
Global prepayments, simplified: one API for mobile top-ups, gift cards, eSIMs, and prepaid utilities
About zendit
zendit is IDT Corporation's prepaid-as-a-service platform that gives businesses a single API, SDKs, and embeddable widgets for selling mobile top-ups, data bundles, digital gift cards, prepaid utility payments, and eSIM data plans. Companies fund one wallet, pull a live catalog of thousands of products across 160+ countries, set their own margins, and pay the wholesale cost per fulfilled transaction with no contract.
Pros & Cons
Pros
- One integration covers top-ups, data, gift cards, utilities, and eSIMs instead of separate vendor contracts
- Self-serve onboarding with a free sandbox key and no contract or technical sales call required
- Large catalog of 15,000+ products in 160+ countries, backed by IDT's prepaid and telecom network
- Built-in margin tools let you resell at your own price and track profit per product
- Embeddable white-label storefronts let non-developer teams launch an eSIM or gift card shop
Cons
- Per-product wholesale costs are only visible inside the console, not on a public rate card
- Production wallets are funded by wire transfer by default, which slows top-ups to your balance
- Wallet currencies are limited to USD, GBP, and EUR
- Few independent user reviews exist, so real-world support quality is hard to verify
- Aimed at businesses reselling prepaid products, not at consumers buying a single top-up
Key Features
Unified prepaid API
A single REST API covers mobile top-ups, mobile data, mobile bundles, digital gift cards, prepaid utilities, and eSIMs, with asynchronous transaction processing.
Live global catalog
Pull a live catalog of 15,000+ prepaid products across 160+ countries and 100+ local currencies, with fixed-price and open-range products.
eSIM data plans
Sell country, regional, and global eSIM plans (about 5,500 plans across 194 countries) with API-based activation and real-time provisioning.
zendit Embeddable
Launch a white-labeled storefront, including a branded eSIM shop, inside a website, app, or wallet without building the customer-facing front end.
Margin and pricing controls
Each product shows its cost (deducted from your wallet) and a suggested price that you can adjust by margin or set to a fixed amount in the catalog console.
One wallet for all products
Fund a single production wallet in USD, GBP, or EUR and draw it down across every product line.
Sandbox environment
Get a free test-mode API key on sign-up and run catalog pulls and transactions from the Swagger console before going live.
Reporting and analytics
Customizable dashboards show sales, profitability, product ranking, trends, and regional performance.
SDKs and Postman collection
Use official SDKs (including a PHP SDK on Packagist), a Postman collection, or the Swagger doc.json to generate a client in your language.
TOTP multifactor authentication
Console access is protected with TOTP-based MFA, plus published security best practices for preventing fraudulent transactions.
Pricing
- Free account sign-up
- Test-mode API key
- Test wallet balance
- Swagger console for catalog pulls and test transactions
- No contract or setup call
- Pay the product cost per fulfilled transaction from your wallet
- Set your own resale margins
- Wallet funded by wire transfer in USD, GBP, or EUR
- Full catalog, analytics, and Embeddable widgets
Best For
Money transfer operators
Add airtime top-ups and data bundles next to remittances so senders can also recharge family members' phones abroad.
Banks, neobanks, and digital wallets
Offer mobile top-ups, gift cards, and bill payments inside the app as value-added services that earn margin.
Rewards and incentives programs
Let users redeem points or incentives for digital gift cards, mobile credit, or eSIM data in many countries.
Travel platforms
Sell eSIM data plans alongside bookings so travelers have connectivity on arrival without roaming fees.
Government and NGOs
Distribute aid as mobile credit or prepaid utility payments in underserved markets.
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