transaction-preview
Read-only
Execute an EOA transaction on a disposable fork of BNB Smart Chain, Ethereum, Base or Arc. Supply target, calldata, optional native-coin value and up to ten ERC-20 assets to track. Returns receipt status, native-coin balance delta including gas, requested token deltas and direct approve allowance reads when available. Other assets, internal approvals and signatures are not inventoried; nothing is broadcast live. Costs $0.02 per successful call in USDC on Base, paid with x402 in the call's _meta; failed calls are free.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| to | Yes | Transaction target | |
| gas | No | Optional gas limit, 21000 to 3000000 | |
| data | Yes | Transaction calldata, 0x for native transfer | |
| chain | No | bsc (BNB Smart Chain, the default), eth (Ethereum) or base (Base) | |
| value | No | Native coin wei (BNB or ETH), default zero | |
| tokens | No | Optional comma-separated ERC-20 assets to track, maximum ten | |
| wallet | Yes | Sending EOA |