{"slug":"api-liquidagent-ai-v1-gas-729668","title":"Gas sponsorship for one ERC-4337 user operation on Base (EntryPoint v0.8)","host":"api.liquidagent.ai","method":"POST","resource":"https://api.liquidagent.ai/v1/gas","category":"market","description":"Gas sponsorship for one ERC-4337 user operation on Base (EntryPoint v0.8). Price = max($0.03, 1.3× the op's gas cap); this is the floor — send your user operation to get the exact quote. Bodies this URL accepts: {sender, calls[, redelegate:true]} (plain wallet, EIP-7702) | {userOperation} unsigned (","price_listed":0.03,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:137","eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"method":"pm_getPaymasterData","params":[{"callData":"0x","callGasLimit":"0x30d40","maxFeePerGas":"0x5f5e100","maxPriorityFeePerGas":"0xf4240","nonce":"0x0","preVerificationGas":"0x13880","sender":"0xYourSmartAccount","verificationGasLimit":"0x186a0"},"0x4337084D9E255Ff0702461CF8895CE9E3b5Ff108","0x2105",{"x402":"<payment object>"}]},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"properties":{"input":{"properties":{"body":{"properties":{"method":{"const":"pm_getPaymasterData"},"params":{"description":"[userOperation, entryPoint, chainId, context] per ERC-7677; put the x402 payment object in context.x402","type":"array"}},"required":["method","params"],"type":"object"},"method":{"const":"POST"},"type":{"const":"http"}},"type":"object"},"output":{"properties":{"example":{"paymaster":"0x9676897C3BF08977Cdbe78213F84e72A29b844eC","paymasterData":"0x…","paymasterPostOpGasLimit":"0x0","paymasterVerificationGasLimit":"0xea60","validUntil":1790000000},"type":{"const":"json"}},"type":"object"}},"type":"object"},"history":[],"description_full":"Gas sponsorship for one ERC-4337 user operation on Base (EntryPoint v0.8). Price = max($0.03, 1.3× the op's gas cap); this is the floor — send your user operation to get the exact quote. Bodies this URL accepts: {sender, calls[, redelegate:true]} (plain wallet, EIP-7702) | {userOperation} unsigned (any EntryPoint v0.8 smart account, bring your own operation) | JSON-RPC ERC-7677. Then POST the signed operation back here; we submit it. GET this URL?docs=1 for details. Quote valid 600s.","last_updated":"2026-09-17T19:41:12.779Z","schemes":["exact"]}