yup Bitcoin's UTXO model is fundamentally different, gasless doesn't apply there the same way. To clarify what the Starkzap SDK actually does: it operates on Starknet, which is an account-based L2 that settles on Ethereum. Bitcoin assets on Starknet are bridged representations, not native UTXOs (although Starknet will soon have a trust-minimized bridge with Bitcoin thanks to Alpen, removing trust assumptions)
So when we say gasless, we mean the Starknet transaction fees are sponsored via a paymaster. The user doesn't need to hold STRK or ETH to transact. The cost is covered by the app or a paymaster service like AVNU (just like Amazon covers shipping costs). That's a design choice the app builder makes depending on their business model. On the stablecoin side: any stablecoin deployed on Starknet works with the SDK, and the paymaster covers the transaction fees if configured. The technical execution is what matters, and that's what the SDK focuses on. The code is open-source if you want to see how it's handled under the hood.
starkience|4 days ago
So when we say gasless, we mean the Starknet transaction fees are sponsored via a paymaster. The user doesn't need to hold STRK or ETH to transact. The cost is covered by the app or a paymaster service like AVNU (just like Amazon covers shipping costs). That's a design choice the app builder makes depending on their business model. On the stablecoin side: any stablecoin deployed on Starknet works with the SDK, and the paymaster covers the transaction fees if configured. The technical execution is what matters, and that's what the SDK focuses on. The code is open-source if you want to see how it's handled under the hood.