ParaSwap (paraswap)

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What it offers

• simpleSwap: Execute a simple single-path swap via Augustus router

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Notes

• Augustus V6 is deployed on every chain the registry lists; Augustus V5’s address holds the router everywhere but Base
• On Base, Augustus V5’s address is not the router: it is a small fee-splitting contract that dispatches none of the router’s functions. A call carrying no value reverts; a call carrying value, simpleSwap included, succeeds without swapping, and the value goes to two accounts the contract fixed when it was deployed (98.5% and 1.5%). Do not send it anything; on Base the router is Augustus V6
• Route computation happens off-chain via ParaSwap API - callees/exchangeData come from API
• Approve srcToken to Augustus contract before swapping

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Its names in a program

function main() {
  // Ethereum's augustusV5, `0xDEF171Fe48CF0115B1d80b88dc8eAB59176FEe57`.
  require(Paraswap.AugustusV5 != 0);
}

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Deployments

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ABI

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AugustusV5ABI

• simpleSwap((address fromToken, address toToken, uint256 fromAmount, uint256 toAmount, uint256 expectedAmount, address[] callees, bytes exchangeData, uint256[] startIndexes, uint256[] values, address beneficiary, address partner, uint256 feePercent, bytes permit, uint256 deadline, bytes16 uuid) data) payable returns (uint256 receivedAmount)

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Next steps

• Protocols: the other protocols, by what they do.
• Protocols and tokens: calling a contract by its namespace, or through its ABI.
• Glossary: the words these pages use, in plain terms.