Instant crypto.Zero volatility.
Accept BTC, ETH, USDT, LTC, TRX, SOL or POL. Settle automatically in stable USDT — no wallet headaches, no price swings, no code required.
Crypto rails. Stable settlement.
Built for businesses that want the reach of crypto without the operational overhead. One integration, every chain we support, settled in stable USDT.
Instant USDT settlement
Every payment auto-converts to stable USDT at the time of transaction. Zero exposure to volatility for your business.
Hosted checkout in seconds
Create a payment via API and you get a ready-to-share checkout URL. No custom UI required.
Developer-first REST API
Bearer-token auth, scoped API keys, sandbox environment. Drop-in checkout for any backend.
7 cryptocurrencies live
BTC, ETH, USDT, LTC, TRX, SOL, POL across the major chains we support today. USDT is accepted on Ethereum, Tron and Solana.
Refund tracking built in
Issue refunds programmatically via API. Approval flow tracked end-to-end on the dashboard.
Custodial wallet management
Vaiipay holds the keys, generates per-payment deposit addresses, and credits your account on confirmation.
Four steps from volatile to stable.
Create a payment via API
POST to /api/payment/checkout with your client ID, amount and reference. Get back a checkoutUrl.
Customer pays in any major crypto
BTC, ETH, USDT, LTC, TRX, SOL or POL — they pick what they hold from your hosted checkout page.
We auto-convert to stable USDT
Vaiipay generates a deposit address, watches the chain, and converts the inbound crypto to USDT once confirmed.
Reconcile via API or dashboard
Poll GET /api/payment/{id} or watch the live dashboard. Status moves to COMPLETED when funds settle.
The crypto stack you'd build yourself.
Bearer-token auth, scoped API keys, hosted checkout, sandbox environment. Skip the wallet infra and ship the integration in an afternoon.
# Create a payment and get a hosted checkout URL
curl -X POST https://api.vaiipay.com/api/payment/checkout \
-H "Authorization: Bearer $VAIIPAY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"clientId": "pa_8h2k...",
"amount": 24900,
"currencyCode": "USDT",
"reference": "INV-2026-08472",
"referenceLabel": "Pro plan, annual",
"redirectUrl": "https://acme.com/order/success"
}'
# → { "data": { "checkoutUrl": "https://app.vaiipay.com/checkout/pay_xxx?expires=...&signature=..." } }
# Redirect or embed checkoutUrl. The customer picks their crypto on our hosted page. Built for anyone
moving money across borders.
E-commerce
Add crypto to checkout. Settle in stable USDT — no chargebacks, no FX exposure.
Freelancers & agencies
Send a checkout link to international clients. Get paid in USDT, instantly.
SaaS billing
Charge per cycle in crypto. Your customers pick the chain; you receive USDT.
Cross-border invoicing
Replace SWIFT for vendor payments. Settle in minutes instead of days.
Donations & tipping
One link, any chain. Donors give in their preferred crypto.
Crypto-native services
API-only businesses that need a payment rail without building wallet infra.
Global payments.
Stable settlement.
No borders. No banks in the middle of the customer flow. Receive crypto from anywhere on earth and settle in stable USDT.
Common questions.
Start accepting crypto in minutes.
No crypto experience needed. No volatility. No waiting. Get paid from anywhere.