Gas Price#

Dynamically obtain estimated gas prices for various chains, supporting EIP-1559, and covering EVM and UTXO model networks.

Request Path#

GET https://www.okx.com/api/v5/wallet/pre-transaction/gas-price

Request Parameters#

Parameter	Type	Required	Description
chainIndex	String	Yes	Unique identifier for the chain

Response Parameters#

EVM#

Parameter	Type	Description
>normal	String	Medium gas price, in wei
>min	String	Low gas price, in wei
>max	String	High gas price, in wei
>supporteip1559	Boolean	Whether supports 1559
>eip1559Protocol	Object	1559 protocol

eip1559 Protocol

Parameter	Type	Description
eip1559Protocol	Object	Structure of 1559 protocol
>suggestBaseFee	String	Suggested base fee = base fee * 1.25, in wei
>baseFee	String	Base fee, in wei
>proposePriorityFee	String	Medium priority fee, in wei
>safePriorityFee	String	Low priority fee, in wei
>fastPriorityFee	String	High priority fee, in wei

BRC-20/UTXO#

Parameter	Type	Description
normalFeeRate	String	Medium fee rate
maxFeeRate	String	High fee rate
minFeeRate	Object	Low fee rate
inscriptionOutput	String	Inscription output size
minOutput	String	Minimum inscription output size, in Satoshi (usually 546 Satoshi)
normalCost	String	Single inscription transaction cost, in Satoshi
maxCost	String	Maximum single inscription transaction cost, in Satoshi
minCost	String	Minimum single inscription transaction cost, in Satoshi

Request Example#

shell

curl --location --request GET 'https://www.okx.com/api/v5/wallet/pre-transaction/gas-price?chainIndex=1' \
--header 'Content-Type: application/json' \
--header 'OK-ACCESS-PROJECT: 86af********d1bc' \
--header 'OK-ACCESS-KEY: 37c541a1-****-****-****-10fe7a038418' \
--header 'OK-ACCESS-SIGN: leaV********3uw=' \
--header 'OK-ACCESS-PASSPHRASE: 1****6' \
--header 'OK-ACCESS-TIMESTAMP: 2023-10-18T12:21:41.274Z'

Response Example#

200

// EVM
{
    "code": "0",
    "data": [
        {
            "normal" : "21289500000", // Medium gas price
            "min" : "15670000000",    // Low gas price
            "max" : "29149000000",    // High gas price            
            "supportEip1559" : true,  // Whether supports 1559
            "erc1599Protocol": {
                "suggestBaseFee" : "15170000000", // Suggested base fee
                "baseFee" : "15170000000",        // Base fee
                "proposePriorityFee" : "810000000", // Medium priority fee
                "safePriorityFee" : "500000000",    // Low priority fee
                "fastPriorityFee" : "3360000000"    // High priority fee
            }
       }     
    ],
    "msg": ""
}

// UTXO
{
    "code": "0",
    "data": [
        {
          "normalFeeRate": "27",
          "maxFeeRate": "35",
          "minFeeRate": "22",
          "inscriptionOutput": "546",
          "minOutput": "1500",
          "normalCost": "1800",
          "maxCost": "3600",
          "minCost": "600"
        }
    ],
    "msg": ""
}