feat: sponsored cctp strategy evm #1929
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dohaki
requested review from
NikolasHaimerl,
amateima,
ashwinrava,
gsteenkamp89,
melisaguevara,
mrice32,
nicholaspai and
pxrl
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dohaki
commented
Oct 31, 2025
dohaki
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Oct 31, 2025
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melisaguevara
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Looking good! Left some questions
ashwinrava
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Nov 11, 2025
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ashwinrava
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Looks good! I've also been using this branch to create sponsored deposits from Arbitrum Sepolia and it's been working well.
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| export const SPONSORED_CCTP_DST_PERIPHERY_ADDRESSES = { | ||
| [CHAIN_IDs.HYPEREVM]: "0x7b164050bbc8e7ef3253e7db0d74b713ba3f1c95", | ||
| [CHAIN_IDs.HYPEREVM_TESTNET]: "0x0000000000000000000000000000000000000000", |
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This should be 0x06C61D54958a0772Ee8aF41789466d39FfeaeB13 right?
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| export const CCTP_FILL_TIME_ESTIMATES: { | ||
| fast: Record<number, number>; | ||
| standard: Record<number, number>; | ||
| } = { | ||
| standard: { | ||
| [CHAIN_IDs.MAINNET]: 19 * 60, | ||
| [CHAIN_IDs.ARBITRUM]: 19 * 60, | ||
| [CHAIN_IDs.BASE]: 19 * 60, | ||
| [CHAIN_IDs.HYPEREVM]: 5, | ||
| [CHAIN_IDs.INK]: 30 * 60, | ||
| [CHAIN_IDs.OPTIMISM]: 19 * 60, | ||
| [CHAIN_IDs.POLYGON]: 8, | ||
| [CHAIN_IDs.SOLANA]: 25, | ||
| [CHAIN_IDs.UNICHAIN]: 19 * 60, | ||
| [CHAIN_IDs.WORLD_CHAIN]: 19 * 60, | ||
| }, | ||
| fast: { | ||
| [CHAIN_IDs.MAINNET]: 20, | ||
| [CHAIN_IDs.ARBITRUM]: 8, | ||
| [CHAIN_IDs.BASE]: 8, | ||
| [CHAIN_IDs.HYPEREVM]: 5, | ||
| [CHAIN_IDs.INK]: 8, | ||
| [CHAIN_IDs.OPTIMISM]: 8, | ||
| [CHAIN_IDs.POLYGON]: 8, | ||
| [CHAIN_IDs.SOLANA]: 8, | ||
| [CHAIN_IDs.UNICHAIN]: 8, | ||
| [CHAIN_IDs.WORLD_CHAIN]: 8, | ||
| }, |
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We have some of these set differently on the indexer side. Is it okay? We can also consider unifying them or moving it to the SDK in the future.
const ATTESTATION_TIMES = {
[CHAIN_IDs.MAINNET]: { standard: 13 * 60, fast: 20 },
[CHAIN_IDs.ARBITRUM]: { standard: 13 * 60, fast: 8 },
[CHAIN_IDs.BASE]: { standard: 13 * 60, fast: 8 },
[CHAIN_IDs.BSC]: { standard: 2, fast: 8 },
[CHAIN_IDs.HYPEREVM]: { standard: 5, fast: 8 },
[CHAIN_IDs.INK]: { standard: 30 * 60, fast: 8 },
[CHAIN_IDs.LINEA]: { standard: 6 * 60 * 60, fast: 8 },
[CHAIN_IDs.OPTIMISM]: { standard: 13 * 60, fast: 8 },
[CHAIN_IDs.POLYGON]: { standard: 8, fast: 8 },
[CHAIN_IDs.SOLANA]: { standard: 25, fast: 8 },
[CHAIN_IDs.UNICHAIN]: { standard: 13 * 60, fast: 8 },
[CHAIN_IDs.WORLD_CHAIN]: { standard: 13 * 60, fast: 8 },
[CHAIN_IDs.ARBITRUM_SEPOLIA]: { standard: 13 * 60, fast: 8 },
};
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Closes ACX-4608
Adds support for sponsored CCTP route strategy. The strategy is enabled for Sepolia Arbitrum -> HyperCore Testnet. Here is an example request.
Examples
Testnet
Below are some test transactions that at least validate that the signatures are correct and the values are correctly set. We can't test the full e2e flow yet though:
Mainnet
Below example deposit flow for simple transfer USDC with HyperEVM fallback as there is no link for USDC on Mainnet yet. This is the only flow that can be tested currently.