This operation evaluates Fee Station usage for the current transaction.
It determines whether Fee station can be used, checks if the Fee Station balance is sufficient, and returns a breakdown of the amounts involved, including any portion that must be covered by the user or sponsored in USD stablecoin.
The API key. For more details, refer to API key.
In the API playground, enter your API secret, and your API key will be accordingly calculated.
The request body for evaluating Fee Station usage.
The information for evaluating Fee Station usage.
The request ID that is used to track a transaction request. The request ID is provided by you and must be unique within your organization.
"f47ac10b-58cc-4372-a567-0e02b2c3d479"
The estimated transaction fee required for this transfer, before applying any Fee Station rules.
"0.0021"
The blockchain address that initiates the transfer.
"0x1234567890abcdef1234567890abcdef12345678"
The wallet ID.
"f47ac10b-58cc-4372-a567-0e02b2c3d479"
Applicable to transfer requests only. The amount of tokens to be transferred in this request.
"100.5"
Applicable to transfer requests only. The token ID of the asset to be transferred. You can retrieve available token IDs by calling List enabled tokens.
"ETH_USDT"
The token ID used to pay the gas fee for the main transaction. You can retrieve available token IDs by calling List enabled tokens.
"ETH"
The mode of transaction fee payment using Fee Station. Currently, Fee Station supports transactions made with MPC Wallets on EVM-compatible chains, TRON, and Solana. For more details, refer to Fee Station.
ProActiveAutoFuel: Always use Fee Station to pay transaction fees.PassiveAutoFuel: Use Fee Station only when the source address balance is insufficient to cover transaction fees.UsePortalPreference: Use fueling strategy based on the Portal configuration.DisableAutoFuel: Do not use Fee Station for transaction fee payment under any circumstances.If this parameter is not specified, it defaults to the behavior of UsePortalPreference.
Note: TRON and Solana does not support PassiveAutoFuel due to its fee delegation mechanism.
PassiveAutoFuel, ProActiveAutoFuel, UsePortalPreference, DisableAutoFuel "PassiveAutoFuel"
The request was successful.
The fee station evaluation result for the transfer request.
The token used to pay the gas fee for this specific transaction. You can retrieve the IDs of all supported tokens by calling List enabled tokens.
"ETH"
The current token balance available in Fee Station.
"0.0021"
The Fee Station mode used for automatic gas payment:
FeeStation: The user uses their own Fee Station balance to cover the gas fee.CoboOperationStation: Cobo covers the gas fee on behalf of the user.FeeStation, CoboOperationStation "CoboOperationStation"
Indicates whether Fee Station is applied for this transfer request.
true
If Fee Station is used, indicates whether its balance is sufficient to cover the required gas fee.
false
The total gas amount required for this transfer request.
"0.0021"
Indicates whether USD stablecoin sponsorship is applied when the Fee Station balance is insufficient.
true
The amount of gas fee sponsored by USD stablecoin when applicable.
"0.0021"
The token ID used to sponsor the gas fee.
"ETH_USDT"