evm_gas_estimate
Gas estimate before sending, on Ethereum, Base, Arc or BNB Chain: gas units, gas price, fee, or the revert reason. Nothing is sent. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without payment for the terms, sign them with your own wallet, call again with payment.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| to | Yes | recipient or contract (0x...) | |
| data | No | hex calldata | |
| from | No | sender (0x...) | |
| chain | No | ethereum (default), base, arc or bnb | |
| value | No | value in wei | |
| payment | No | a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call. |