# Abstracted Settlement Rails

Venzo Pay integrates seamlessly with major payment networks, including Mastercard, Apple Pay, and Google Pay. The underlying architecture abstracts the complex settlement process between fiat and crypto.

When a user makes a purchase, the following process occurs in milliseconds:

1. **Transaction Initiation:** The merchant's point-of-sale system sends a payment authorization request to the Mastercard network.
2. **Balance Check:** Venzo's payment processor receives the authorization request and checks the user's available balance across their fiat accounts, stablecoin holdings, and vault positions.
3. **Instant Liquidation:** If the user's primary spending balance is insufficient, the system automatically redeems the necessary amount from the user's designated Venzo Earn vault (starting with the most liquid vault).
4. **Currency Conversion:** The stablecoins are converted to the merchant's local fiat currency at the prevailing market rate, with Venzo's competitive FX spread applied.
5. **Settlement:** The fiat amount is settled to the merchant through the Mastercard network, and the user's Venzo balance is debited accordingly.
6. **Cashback Credit:** The applicable cashback reward is instantly credited to the user's account.

This entire process is invisible to the user, who simply taps their card or phone and sees the transaction confirmed.

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