Estimating transaction fees

Palisade’s Transaction Fee Estimation API allows customers to preview network fees before executing transfers of their digital assets.

As a result, customers can properly budget for transaction costs and choose the optimal fee level based on the urgency of the transaction.

How to estimate transaction fees via the API

Use this new endpoint to get accurate fee estimates for transactions across supported blockchains:

POST /v2/transactions/transfer/estimate-fee

Example Request Body:

{
    "blockchain": "ETHEREUM",
    "symbol": "USDT",
    "contract": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
    "originAddress": "0x55502b9d5a68b0F8a48384352295BeD968aD8AA4"
}

Example Response:

{
    "evm": {
        "gasPrice": "300000000",
        "baseFee": "100000000",
        "priorityFee": "200000000",
        "gasLimit": "65156"
    },
    "networkFees": {
        "average": "0.0000195468",
        "fast": "0.0001042496",
        "fastest": "0.0001694056",
        "slow": "0.0000195468",
        "slowest": "0.0000065156"
    }
}

As you can see in the Example Response, the API will return 5 speed tiers (slowest to fastest) and their associated fees. Customers have the option to pay a higher fee for the transaction to be processed more quickly.

For Ethereum and compatible chains, the API will also return detailed gas information including:

• Gas price (in gwei)
• Base fee (in gwei)
• Priority fee (in gwei)
• Estimated gas limit.

Once customers have previewed the fee options, they can then specify their desired network fee in the transfer API.

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This feature is currently API only. It will be available on the Palisade UI soon.