{"success":true,"timestamp":"2026-11-04T22:31:09.198Z","tier":"demo","totalLatencyMs":336,"recommendation":null,"chains":[{"chain":"Ethereum","chainId":1,"nativeToken":"ETH","tokenPriceUsd":2433.08,"gasPrice":{"baseFeeWei":"41643582","priorityFeeWei":"3617","totalFeeWei":"41647199","baseFeeGwei":"0.0416","priorityFeeGwei":"0.0000","totalFeeGwei":"0.0416"},"blockNumber":"26344453","explorer":"https://etherscan.io","latencyMs":121,"status":"ok","estimatedCosts":{"nativeTransfer":{"native":"0.00000087","gasUnits":"21000","label":"Simple native token transfer"},"erc20Transfer":{"native":"0.00000271","gasUnits":"65000","label":"ERC-20 token transfer"},"dexSwap":{"native":"0.00000625","gasUnits":"150000","label":"DEX swap (Uniswap-style)"}}},{"chain":"Base","chainId":8453,"nativeToken":"ETH","tokenPriceUsd":2433.08,"gasPrice":{"baseFeeWei":"5000000","priorityFeeWei":"1000000","totalFeeWei":"6000000","baseFeeGwei":"0.0050","priorityFeeGwei":"0.0010","totalFeeGwei":"0.0060"},"l1DataFee":{"nativeTransferWei":"505485018","erc20TransferWei":"817966666","dexSwapWei":"1700267789","note":"OP Stack L1 data posting fee (Ecotone formula, ~110-byte signed-tx overhead included) added to estimated costs"},"blockNumber":"53521061","explorer":"https://basescan.org","latencyMs":37,"status":"ok","estimatedCosts":{"nativeTransfer":{"native":"0.00000013","gasUnits":"21000","label":"Simple native token transfer"},"erc20Transfer":{"native":"0.00000039","gasUnits":"65000","label":"ERC-20 token transfer"},"dexSwap":{"native":"0.00000090","gasUnits":"150000","label":"DEX swap (Uniswap-style)"}}},{"chain":"Arbitrum","chainId":42161,"nativeToken":"ETH","tokenPriceUsd":2433.08,"gasPrice":{"baseFeeWei":"20038000","priorityFeeWei":"0","totalFeeWei":"20038000","baseFeeGwei":"0.0200","priorityFeeGwei":"0.0000","totalFeeGwei":"0.0200"},"blockNumber":"521304832","explorer":"https://arbiscan.io","latencyMs":95,"status":"ok","estimatedCosts":{"nativeTransfer":{"native":"0.00000042","gasUnits":"21000","label":"Simple native token transfer"},"erc20Transfer":{"native":"0.00000130","gasUnits":"65000","label":"ERC-20 token transfer"},"dexSwap":{"native":"0.00000301","gasUnits":"150000","label":"DEX swap (Uniswap-style)"}}},{"chain":"Optimism","chainId":10,"nativeToken":"ETH","tokenPriceUsd":2433.08,"gasPrice":{"baseFeeWei":"311","priorityFeeWei":"1000000","totalFeeWei":"1000311","baseFeeGwei":"0.0000","priorityFeeGwei":"0.0010","totalFeeGwei":"0.0010"},"l1DataFee":{"nativeTransferWei":"720100560","erc20TransferWei":"1165253633","dexSwapWei":"2422156429","note":"OP Stack L1 data posting fee (Ecotone formula, ~110-byte signed-tx overhead included) added to estimated costs"},"blockNumber":"159116346","explorer":"https://optimistic.etherscan.io","latencyMs":41,"status":"ok","estimatedCosts":{"nativeTransfer":{"native":"0.00000002","gasUnits":"21000","label":"Simple native token transfer"},"erc20Transfer":{"native":"0.00000007","gasUnits":"65000","label":"ERC-20 token transfer"},"dexSwap":{"native":"0.00000015","gasUnits":"150000","label":"DEX swap (Uniswap-style)"}}}],"meta":{"provider":"MGO — Multi-chain Gas Optimizer","protocol":"x402","version":"2.2.0","tier":"demo","chainsQueried":4,"chainsSucceeded":4,"costUnit":"USDC","priceSource":"CoinGecko (1-min cache)","notes":["All estimated costs are in USDC for cross-chain comparison","Optimism and Base costs include the OP Stack L1 data posting fee (Ecotone formula)","Arbitrum and zkSync Era costs exclude their L1 data component and may be under-estimated","Gas prices shown in native gwei; USDC = native cost × token price"],"pricing":{"basic":"$0.001 USDC / 1 call — 4 chains (ETH, Base, Arbitrum, Optimism)","premium":"$0.002 USDC / 1 call — 9 chains (+ BNB, Polygon, Avalanche, zkSync, Hyperliquid)"}},"demo_notice":"Free demo — raw gas prices only. Upgrade to Basic ($0.001) for recommendations & savings calculations, or Premium ($0.002) for 9-chain coverage."}