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Use the Sauce SDK to build standalone onchain payments, swaps, lending operations and conditional workflows. Use Routes to transfer supported tokens to the chain where your application runs, and add destination calls when fulfillment should invoke your contract. You can choose either starting point or combine them.

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Accept a cross-chain contract deposit

Request a custom quote with the calls your destination contract requires. Validate the recipient, token, amount, and encoded calls before funding. The destination-calls guide explains the execution context and failure behavior. The calls execute within the destination fulfillment transaction. Source-chain funding and any later refund are separate transactions, so your application must track the intent lifecycle.

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Choose a deposit-address flow

Programmable Addresses provide specific supported deposit routes. Use the Solana flow for Base USDC to a Solana recipient, or the Circle Gateway flow for Gateway deposits. Check the selected service’s source tokens, destination, and funding requirements before integrating.

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Program onchain execution

Use the Sauce SDK to combine reads, conditions and contract calls in one transaction. The first-program guide introduces compiling and simulation. Sauce SDK quickstarts covers payments, conditional swaps, lending positions and balance management. A program can run on its own. For execution triggered by a Routes intent, read Sauce in a route. Your application remains responsible for scheduling any repeated runs and tracking their transactions.

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Manage application liquidity

Use the treasury-rebalancing guide to plan transfers between your own wallets. Your service chooses thresholds and tracks in-flight transfers before initiating another rebalance.

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Next steps