feat: update ETH swap contract to SafeERC20 and enable USDT trading#1675
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feat: update ETH swap contract to SafeERC20 and enable USDT trading#1675
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This was referenced Feb 4, 2026
shamardy
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Update ethereum/ETH swap_contract_address to the new EtomicSwap V1 with SafeERC20 support (0x61EEC68Cf64d1b31e41EA713356De2563fB6D3F1). Move previous contract to fallback_swap_contract. Remove wallet_only from USDT-ERC20 to enable atomic swaps. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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cipig
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also tested DAI-ERC20 with an old maker, so that fallback_swap_contract was used
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Summary
ethereum/ETHswap contract to the new SafeERC20-enabled EtomicSwap V1 (applies to all ETH-chain coins)wallet_onlyfrom USDT-ERC20 in the mastercoinsfile to enable atomic swapsChanges
ethereum/ETHswap_contract_address0x24ABE4c71FC658C91313b6552cd40cD808b3Ea800x61EEC68Cf64d1b31e41EA713356De2563fB6D3F1fallback_swap_contract0x8500AFc0bc5214728082163326C2FF0C73f4a8710x24ABE4c71FC658C91313b6552cd40cD808b3Ea80coins"wallet_only": truefrom USDT-ERC20Why?
USDT's
transfer/transferFromdon't return a boolean, which caused the old V1 contract to revert. The new contract uses OpenZeppelin SafeERC20 to handle non-standard ERC20 tokens correctly. It is fully backward compatible with standard ERC20 tokens.New Contract
0x61EEC68Cf64d1b31e41EA713356De2563fB6D3F1Related