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Kriptonio provides the ability to sponsor transactions via the Paymaster service. When you send a transaction, Kriptonio pays the transaction fee, and we later charge your credit card with the sponsored USD value + a provision.

This allows interaction with smart contracts, dApps without going through the cumbersome process of acquiring cryptocurrency needed for transaction gas fees.

Kriptonio SDK provides functions that are needed to sponsor user transactions. Normally, you don't need to use this part of the SDK yourself, but in case you have custom needs, you can use this part of the SDK to create paymaster endpoints and to obtain the paymasterAndData value needed for sponsoring transactions.