Test Before You
Go Live.
A fully isolated test environment that mirrors production. Simulate payments, COD flows, webhooks, and settlements without touching real money.
🧪 The Zyrix Sandbox is currently in early access. Fill the form below to get your test API keys and sandbox credentials within 24 hours.
What You Can Test
Payment Flows
Simulate successful, failed, and pending payment scenarios. Test 3D Secure authentication flows and card decline handling.
Crypto Payments
Test USDT (TRC20, ERC20, BEP20), BTC, and ETH payment flows with simulated blockchain confirmations. No real crypto needed.
COD Simulation
Create test COD orders, simulate driver confirmations, test failed delivery flows, and trigger WhatsApp notification events.
Webhook Testing
Receive real webhook payloads to your test endpoint. Replay events, test retry logic, and validate your event handlers.
Settlement Simulation
Trigger instant test settlements to verify your settlement reconciliation logic without waiting for actual payout cycles.
KYC/KYB Flows
Test merchant onboarding flows, document upload endpoints, and KYC verification status transitions.
Sandbox Credentials
https://api-sandbox.zyrix.co/v1sk_test_xxxxxxxxxxxxxxxxxxxxpk_test_xxxxxxxxxxxxxxxxxxxxwhsec_test_xxxxxxxxxxxxxxxxTest Card Numbers
4111 1111 1111 1111VisaPayment Successful4000 0000 0000 0002VisaCard Declined4000 0000 0000 3220Visa3D Secure Required5500 0000 0000 0004MastercardPayment Successful5105 1051 0510 5100MastercardInsufficient FundsUse any future expiry date and any 3-digit CVV.
Test Crypto Wallets
TTestXXXXXXXXXXXXXXXXXXXXXXXXXXXXSend any amount to simulate a USDT payment
tb1qtest_xxxxxxxxxxxxxxxxxxxxxxxxxxTestnet address — use testnet BTC only
0xTestXXXXXXXXXXXXXXXXXXXXXXXXXXXXGörli testnet — use test ETH from faucet
Sandbox Limits & Behavior
- ✓All monetary values are in test currency — no real money moves
- ✓Settlements are simulated instantly (no T+2 delay)
- ✓KYC verification auto-approves test documents
- ✓Webhook retries behave identically to production (3 retries, exponential backoff)
- ✓Rate limits are identical to production (1,000 req/min per API key)
- ✓Sandbox data is reset every 30 days
Request Sandbox Access
Fill in your details and our developer team will send your API keys within 24 hours.