TypeScript SDK: SmoothSend Gasless Transactions

Purpose

Guide gasless transaction sponsorship on Aptos using SmoothSend. Users sign transactions via their wallet but never pay gas — you pay per transaction from pre-loaded credits. Works as a drop-in transactionSubmitter for AptosWalletAdapterProvider.

Paid commercial service: Free on testnet; mainnet uses credit-based billing. See Pricing for current rates.

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