[sdk,simplex]: Delegate EOA to SolverAccount using UserOp#778
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royvardhan
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- Delegate the filler EOA to the SolverAccount contract via EIP-7702 and submit a no-op UserOp through the bundler to activate delegation - Use Circle Paymaster (USDC permit, EIP-2612) to pay gas in USDC on supported chains; fall back to EntryPoint native-token deposit where Circle is not deployed (e.g. BSC) - remove aerodrome support - clamp filler output for safety: cap computed output at user-requested × (1 + maxOverfillBps), reject fx orders where output USD ≥ input USD, and halt after N consecutive clamp activations; defaults 100 bps / 3 via [simplex.overfillProtection] in filler config
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Wizdave97
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Let's update the simplex docs
seunlanlege
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seunlanlege
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Ref: #768 (comment)
DelegationServicenow delegates via bundlerUserOpwith paymaster paying gas — solver needs zero native tokens. Supports Pimlico, Alchemy, and generic bundler gas pricing. Falls back to direct tx.ContractInteractionServiceapproval scoped to exact required amount instead ofmaxUint256