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Delx Commerce — EVM Batch Gas Sum
x402
Delx Commerce — EVM Batch Gas Sum is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Computes the total gas and fee ceiling for a batch of EVM transactions without retaining input data or making external calls.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object containing total_gas (aggregate gas units across all transactions), fee_ceiling_wei (maximum fee in wei as a string), and transaction_count. Also includes an evidence block with retained=false, the SHA256 hash of the input for verifiability, and external_calls=0 confirming pure in-memory computation.
Example use cases
DeFi batch transaction preflight
“I'm about to submit a bundle of 5 EVM transactions to a DeFi protocol — can you sum up the total gas and give me the fee ceiling in wei so I can check I have enough funds before broadcasting?”
Smart contract deployment gas budget
“I have 3 smart contract deployment transactions queued up — can you calculate the combined gas requirement and fee ceiling so I know the max ETH I need to have ready?”
MEV bundle gas validation
“Before I send this MEV bundle of 8 transactions, can you add up all the gas across each transaction and tell me the total gas units and the wei fee ceiling so I can validate my budget?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/evm-batch-gas-sum?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, verifiable, no-retention gas aggregation across multiple EVM transactions before broadcasting. It is ideal for preflight checks in agent workflows where auditability matters (SHA256 evidence included), no signup is required, and you want exact USDC micropayment pricing via x402 rather than running your own gas estimation logic.
Side effects
- Exceeds 256 transaction limit — request rejected
- Individual transaction object exceeds 128 properties — validation error
- Malformed transaction array — 400 bad request
- Payment not received via x402 — 402 payment required
- Empty transactions array — may return zero totals or error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| transactions | array | Transactions supplied to EVM Batch Gas Sum; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"total_gas": 71000,
"fee_ceiling_wei": "81000000000000",
"transaction_count": 2
},
"schema": "delx/util-evm-batch-gas-sum/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "37fd9d992f36719b2a5335554b644d0245f5e690b6bf017cfb5b8cb21fe3dbde",
"external_calls": 0
},
"operation": "evm_preflight:evm_batch_gas_sum"
}
}Tags
x402
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