klay_createAccessList

POST

Generates an Access List for a transaction according to EIP-2930. The Access List contains only the minimal information required for transaction execution, reducing network load and gas costs.

param[0]

callObjectobjectrequired

Call object for transaction simulation. May include the following fields.

from: Enter the transaction's from address as a string.
to : Enter the transaction's to address as a string.
gas : Enter the gas limit for the transaction as a hexadecimal string. For smart contract calls, you can enter 0x0 since no gas is consumed.
gasPrice : Enter the gas price per unit as a hexadecimal string.
value : The value field of the transaction.
data : The method signature hash of the transaction to execute. Can be referenced from the ABI.

fromstring

Enter the transaction's from address as a string.

tostring

Enter the transaction's to address as a string.

gasstring

Enter the gas limit for the transaction as a hexadecimal string. For smart contract calls, you can enter 0x0 since no gas is consumed.

gasPricestring

Enter the gas price per unit as a hexadecimal string.

valuestring

The value field of the transaction.

datastring

The method signature hash of the transaction to execute. Can be referenced from the ABI.

param[1]

blockNumberOrHashOrTagstringrequired

Use one of block hash, block number, or block tag to specify the block.

Block number: Hexadecimal string (e.g. "0x1")
Block hash: 64-digit hexadecimal string (e.g. "0x39008d07edf93c03bb9d1cfc80598fcf63f441ec86e9de3733fa6a484980ca48")]
Block tag: Enum string (e.g. "latest", "earliest", "pending")
- earliest: The oldest available block on the chain.
- finalized: A recently finalized block that can no longer be changed. Primarily used in proof-of-stake (PoS) blockchains.
- safe: A recent block considered safe by the network (immune to reorgs).
- latest: The most recent block on the chain (may be subject to reorgs).
- pending: The next block to be mined, including pending transactions in the mempool.

Responses

The generated access list

addressstring

Contract address to be accessed

storageKeysarray

Storage keys to be accessed

gasUsedstring

Estimated gas used when applying the access list (hex)

codestringrequired

Code identifying the cause of the failed request.

messagestringrequired

Detailed message including the name and value of the invalid parameter.

{
  "code": "ERROR_CODE",
  "message": "Unauthorized"
}

X-API-KEY

cURL

curl -X POST 'https://kaia-mainnet.nodit.io' \
  -H 'Content-Type: application/json' \
  -H 'X-API-KEY: nodit-demo' \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "klay_createAccessList",
    "params": [
      {
        "to": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
        "data": "0x70a08231000000000000000000000000d8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
      },
      "latest"
    ]
  }'