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Mint Intel: Ethereum Gas Estimator (eth_estimateGas)
x402
Mint Intel: Ethereum Gas Estimator (eth_estimateGas) is a paid API for AI agents from mintintel.35-171-220-195.sslip.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Estimates the gas units, current gas price, and total ETH fee for an Ethereum transaction before signing, or returns the revert reason if the transaction would fail.
Price / call$0.002
Success—
StatusUnknown
How this service works
Estimate the gas a Ethereum transaction will consume via eth_estimateGas before signing it (?to=&from=&data=&value=): gas units, current gas price and estimated fee in ETH, or willFail with the revert reason when it would fail.
Output
Returns a JSON object with a willFail boolean. If the transaction would succeed, also includes gasEstimate (integer gas units), the current gas price in wei, and the estimated total fee denominated in ETH. If willFail is true, the response includes the revert reason string explaining why the transaction would revert.
Example use cases
Pre-flight check before token transfer
“I'm about to send 100 USDC from 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 to 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B — can you estimate the gas and ETH fee for that transfer calldata before I sign it?”
Debug a failing contract call
“My transaction to contract 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D keeps failing. Can you simulate the call with my calldata 0x38ed173900000000000000000000000000000000000000000000000000000000000f4240 from 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 and tell me the revert reason?”
Gas cost estimate for DeFi swap
“Before I execute this Uniswap swap, estimate the gas units and total ETH fee for calling 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D with value 500000000000000000 wei from 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045.”
Technical details
Endpoint
GEThttps://mintintel.35-171-220-195.sslip.io/v1/eth/estimate-gas?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to simulate an Ethereum transaction before signing to avoid wasted gas on reverts, or when you want an accurate gas and ETH fee estimate for budgeting purposes. Prefer this over on-chain execution when you are building a preflight check in a DeFi workflow, debugging a failing contract call, or need the revert reason without spending gas. Specifically covers Ethereum mainnet; use the sibling Base chain endpoint for Base transactions.
Side effects
- Missing required 'to' address returns a 400 or validation error
- Invalid hex address format causes a parse error
- Calldata larger than 12 KB is rejected
- Node RPC unavailable causes a 5xx error or timeout
- Simulating a transaction that would revert returns willFail:true with revert reason instead of gas estimate
- Payment not included or invalid returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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