SMS verification API, paid in crypto
TemporarySMSNumber exposes an API to search the catalog, reserve virtual numbers and read incoming SMS codes, with scoped API keys, spending limits and service allowlists — and the account balance behind it is topped up in crypto (USDT TRC-20/ERC-20, USDC, BTC, XMR, ETH, LTC, TRX, SOL). It covers 234 markets and services such as WhatsApp, Telegram, Google, Discord, Signal and Steam; availability and price are confirmed before each reservation. No ID document — just an email and a password.
What the API is for
- QA and testing teams that need fresh numbers for sign-up flows.
- Bot and automation developers who verify many accounts for legitimate workflows.
- Agencies managing client accounts across countries.
Controls built in
- Scoped keys: limit each key to the actions it needs.
- Budgets and limits: cap spending per key.
- Service allowlists: restrict keys to the services you actually use.
- Human approval for high-risk actions where required.
Paying for API usage
Top up once in crypto (minimum $25) and the API draws from the balance per activation. Eligible cancelled orders go back to the balance automatically.
| Coin | Ticker | Network | Good to know |
|---|---|---|---|
| Tether | USDT | TRON (TRC-20) or Ethereum (ERC-20) | Exact dollar value; TRC-20 for low fees |
| USD Coin | USDC | Ethereum (ERC-20) | Stable value |
| Bitcoin | BTC | Bitcoin | |
| Monero | XMR | Monero | Private by default |
| Ethereum | ETH | Ethereum | |
| Litecoin | LTC | Litecoin | Fast, cheap |
| TRON | TRX | TRON | Near-zero fees |
| Solana | SOL | Solana | Fast |
Catalog prices (examples)
| Service | Country | Catalog price per activation |
|---|---|---|
| Signal | France | €0.50 |
| Discord | France | €0.53 |
| Telegram | France | €0.59 |
| Steam | France | €0.82 |
| France | €0.84 | |
| France | €0.99 |
Why choose TemporarySMSNumber
- Low per-activation prices. France examples: Signal €0.50, Telegram €0.59, WhatsApp €0.99 — the final price is confirmed before every reservation.
- 234 markets and a searchable catalog of services (WhatsApp, Telegram, Google, Discord, Signal, Steam…).
- Pay in crypto, no ID. Top up in USDT (TRC-20/ERC-20), USDC, BTC, XMR, ETH, LTC, TRX or SOL; the account is just an email and a password.
- No SMS, no charge. Cancel within the route rules and eligible orders return to your balance automatically.
- API for developers — scoped keys with limits and service allowlists.
Before you buy
What does it cost to start? A crypto top-up of $25 minimum; each activation is then charged at the catalog price shown before you reserve. Your remaining balance stays available.
What if the code doesn't arrive? Cancel within the route rules; eligible orders are refunded to your balance automatically.
What is it for? Legitimate messaging workflows only.
FAQ
Is there an SMS verification API I can pay with crypto?
Yes. TemporarySMSNumber's API works from a balance topped up in USDT, USDC, BTC, XMR, ETH, LTC, TRX or SOL, with scoped keys and limits.
Which markets does the API cover?
The same catalog as the website: 234 markets.
Can I limit what a key can do?
Yes — scopes, budgets and service allowlists are configurable per key.
What happens when no SMS arrives?
Eligible orders are returned to the balance automatically after cancellation within the route rules.
Our recommendation
For automated verification workflows paid in crypto, fund a TemporarySMSNumber balance in USDT and create a scoped API key per project.
Related guides
- SMS numbers with crypto — Receive SMS verification codes on virtual numbers in 234 markets — WhatsApp, Telegram, Google, Discord, Signal, Steam — with a balance topped up in USDT, BTC or XMR.
- WhatsApp number — Get a virtual number to receive the WhatsApp verification SMS — France route listed at €0.99 — paid from a balance topped up in USDT, BTC or XMR. Auto-refund if no SMS.
- Telegram number — Receive the Telegram login SMS on a virtual number — France route listed at €0.59 — with a crypto-funded balance. Price confirmed before reserving, auto-refund if no SMS.
- SMS verification options — Free SMS inboxes vs reserved virtual numbers vs second SIMs: which works for WhatsApp, Telegram or Google verification, and how to pay with USDT, BTC or XMR.