JSON-RPC Methods

The Unit Zero node, maintained by our team, runs as an instance of the Geth client and exposes a standard Ethereum-compatible JSON-RPC interface for interacting with the Unit0 network.

Node Parameters

• Node URL: https://rpc.unit0.dev

• Format: Numeric values are returned as hexadecimal (0x-prefixed).

• Standard: Methods are compatible with the Ethereum JSON-RPC standard, inherited from Geth.

JSON-RPC Method List

Expand the list of JSON-RPC methods supported by the Unit Zero node.

• eth_chainId

• eth_blockNumber

• eth_gasPrice

• eth_maxPriorityFeePerGas

• eth_blobBaseFee

• eth_feeHistory

• eth_getBalance

• eth_getCode

• eth_getStorageAt

• eth_call

• eth_estimateGas

• eth_getLogs

• eth_getProof

• eth_getTransactionCount

• eth_getBlockByNumber

• eth_getBlockByHash

• eth_getBlockTransactionCountByNumber

• eth_getBlockTransactionCountByHash

• eth_getUncleCountByBlockNumber

• eth_getUncleCountByBlockHash

• eth_getTransactionByHash

• eth_getTransactionByBlockNumberAndIndex

• eth_getTransactionByBlockHashAndIndex

• eth_getTransactionReceipt

• eth_getUncleByBlockNumberAndIndex

• eth_getUncleByBlockHashAndIndex

• eth_accounts

• eth_syncing

• debug_traceCall

• debug_traceTransaction

• debug_traceBlockByNumber

• debug_traceBlockByHash

---

eth_chainId

Returns the chain ID of the current network.

Parameters

None.

Request Example

{
  "jsonrpc": "2.0",
  "method": "eth_chainId",
  "params": [],
  "id": 1
}

Response Example

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x01"
}

eth_blockNumber

Returns the number of the most recent block.

Parameters

None.

Request Example

{
  "jsonrpc": "2.0",
  "method": "eth_blockNumber",
  "params": []
}

Response Example

{
  "jsonrpc": "2.0",
  "result": "0x275a21"
}

eth_gasPrice

Returns the current price per gas in wei.

Parameters

None.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_gasPrice",
    "params": []
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x28fa6ae07"
}

eth_maxPriorityFeePerGas

Returns the current maxPriorityFeePerGas value per gas in wei.

Parameters

None.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_maxPriorityFeePerGas",
    "params": []
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x28fa6ae00"
}

eth_blobBaseFee

Returns the base fee per blob gas in wei.

Parameters

None.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_blobBaseFee",
    "params": []
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x1"
}

eth_feeHistory

Returns the transaction base fee per gas and effective priority fee per gas for the requested block range.

Parameters

Parameter	Data Type	Required	Description
block count	int	Yes	Requested range of blocks. Clients will return less than the requested range if not all blocks are available.
newest block	block	Yes	Highest block of the requested range (e.g. earliest, latest, pending, finalized, or hex block number).
reward percentiles	array	-	-
0	int	No	Monotonically increasing list of percentile values. For each block in the requested range, the transactions will be sorted in ascending order by effective tip per gas and the coresponding effective tip for the percentile will be determined, accounting for gas consumed.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_feeHistory",
    "params": [
        "0x1",
        "latest",
        []
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": {
        "oldestBlock": "0x26a89c",
        "baseFeePerGas": [
            "0x7",
            "0x7"
        ],
        "gasUsedRatio": [
            0.008340066666666666
        ],
        "baseFeePerBlobGas": [
            "0x1",
            "0x1"
        ],
        "blobGasUsedRatio": [
            0
        ]
    }
}

eth_getBalance

Returns the current price per gas in wei.

Parameters

Parameter	Data Type	Required	Description
account	address	Yes	Account address.
block	block	Yes	Block context for checking the current price per gas (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getBalance",
    "params": [
        "0xA263497921e036fEC48E1457499e850689D05cAd",
        "latest"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x1607c81f6950948d"
}

eth_getCode

Returns code at a given address.

Parameters

Parameter	Data Type	Required	Description
contract	address	Yes	Contract address.
block	block	Yes	Block context for getting the code details (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getCode",
    "params": [
        "0xCF43F7703d9B4E8835f977eF364B4014fA7e856E",
        "latest"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x6080604052600436106100af576000357c010000000000000000000000000000000"
}

eth_getStorageAt

Returns the value from a storage position at a given address.

Parameters

Parameter	Data Type	Required	Description
contract	address	Yes	Contract address.
slot	bytes32	Yes	Index of the memory slot.
block	block	Yes	Block context for getting the value from the storage (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getStorageAt",
    "params": [
        "0xCF43F7703d9B4E8835f977eF364B4014fA7e856E",
        "0x0000000000000000000000000000000000000000000000000000000000000000",
        "latest"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x5772617070656420554e4954300000000000000000000000000000000000001a"
}

eth_call

Executes a new message call immediately without creating a transaction on the blockchain.

Parameters

Parameter	Data Type	Required	Description
transaction	object	-	-
nonce	int	No	Nonce of the transaction. Mostly ignored, but can be used to simulate specific scenarios.
type	int	No	Transaction type.
from	address	No	Source of the transaction call. Useful to impersonate another account.
to	address	Yes	Target contract address.
gas	int	No	Gas limit.
value	int	No	Amount of wei sent with the call.
data	bytes	No	Transaction call input.
gas price	int	No	Gas price willing to be paid by the sender in wei.
max fee per gas	int	No	Maximum total fee per gas the sender is willing to pay, including the network base fee and miner priority fee in wei.
max priority fee per gas	int	No	Maximum fee per gas the sender is willing to pay to miners in wei.
max fee per blob gas	int	No	Maximum total fee per gas the sender is willing to pay for blob gas in wei.
block	block	Yes	Block context for executing the call (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_call",
    "params": [
        {
            "nonce": null,
            "type": null,
            "from": null,
            "to": "0xb124468456176f1EbeC9a4D1e60366f521b8eb48",
            "gas": null,
            "value": null,
            "data": null,
            "gasPrice": null,
            "maxFeePerGas": null,
            "maxPriorityFeePerGas": null,
            "maxFeePerBlobGas": null
        },
        "latest"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x"
}

eth_estimateGas

Generates and returns an estimate of how much gas is necessary to allow the transaction to complete. The transaction will not be added to the blockchain.

NOTE: The estimate may be significantly more than the amount of gas actually used by the transaction, for a variety of reasons including EVM mechanics and node performance.

Parameters

Parameter	Data Type	Required	Description
transaction	object	-	-
from	address	No	Source of the transaction call. Useful to impersonate another account.
to	address	No	Target contract address.
gas	int	No	Optional gas limit cap.
gas price	int	No	Gas price in wei.
value	int	No	Amount of ETH sent.
data	bytes	No	Transaction input.
max fee per gas	int	No	Total fee cap per gas unit.
max priority fee per gas	int	No	Miner tip per gas unit.
nonce	int	No	Simulated sender nonce.
type	int	No	Transaction type flag per EIP‑1559: 0, 1, or 2.
block	block	No	Block context for gas estimation (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_estimateGas",
    "params": [
        {
            "from": null,
            "to": "0xA263497921e036fEC48E1457499e850689D05cAd",
            "gas": null,
            "gasPrice": null,
            "value": null,
            "data": null,
            "maxFeePerGas": null,
            "maxPriorityFeePerGas": null,
            "nonce": null,
            "type": null
        },
        null
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x5208"
}

eth_getLogs

Returns an array of all logs matching a given filter object.

Parameters

Parameter	Data Type	Required	Description
filter	object	-	-
from block	block	No	Block context of the start of the fetching window (e.g. earliest, latest, finalized, or hex block number).
to block	block	No	Block context of the end of the fetching window (e.g. earliest, latest, pending, finalized, or hex block number).
contract	address	No	Source of the logs. If blank, will fetch logs from all contracts.
0	bytes32	No	First topic.
1	bytes32	No	Second topic.
2	bytes32	No	Third topic.
3	bytes32	No	Fourth topic.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getLogs",
    "params": [
        {
            "fromBlock": null,
            "toBlock": null,
            "address": null,
            "topics": [
                null,
                null,
                null,
                null
            ]
        }
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": []
}

eth_getProof

Returns the merkle proof for a given account and optionally some storage keys.

Parameters

Parameter	Data Type	Required	Description
account	address	Yes	Account address.
storage keys	array	-	-
0	bytes32	No	Storage key in the array.
block	block	Yes	Block context for getting the proof (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getProof",
    "params": [
        "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
        [],
        "latest"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": {
        "address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
        "accountProof": [
            "0xf86f9e36931543d16b4e19f3b72f0543feaa2ee4ff25b154fd1059da9024dc42cab84ef84c808815a9c93abe628000a0"
        ],
        "balance": "0x0",
        "codeHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
        "nonce": "0x0",
        "storageHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
        "storageProof": []
    }
}

eth_getTransactionCount

Returns the number of transactions sent from an address.

Parameters

Parameter	Data Type	Required	Description
account	address	Yes	Account address.
block	block	Yes	Block context for getting the transaction count (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionCount",
    "params": [
        "0xCF43F7703d9B4E8835f977eF364B4014fA7e856E",
        "latest"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x1"
}

eth_getBlockByNumber

Returns information about a block by block number.

Parameters

Parameter	Data Type	Required	Description
block	block	Yes	Block context for getting the block details (e.g. earliest, latest, pending, finalized, or hex block number).
is full	boolean	No	Whether to fetch the full block. If false, will only fetch the header and the list of transaction hashes.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getBlockByNumber",
    "params": [
        "latest",
        true
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": {
        "baseFeePerGas": "0x7",
        "blobGasUsed": "0x0",
        "difficulty": "0x0",
        "excessBlobGas": "0x0",
        "extraData": "0xd883010f03846765746888676f312e32342e31856c696e7578",
        "gasLimit": "0x1c9c380",
        "gasUsed": "0x0",
        "hash": "0xe50299c8e2fd9f7464f85b10d1c5a284d2f59b575cc678c364f27bfb0f80082d",
        "logsBloom": "0x000000000000000000000000000000",
        "miner": "0x992d7bd1a362e7cf1b3f8badf541fa1e630d5ddf",
        "mixHash": "0x8ee4d266fc4107fa2e302c7352cc4f98b464967a06071488b26377651c4c5491",
        "nonce": "0x0000000000000000",
        "number": "0x26d21a",
        "parentBeaconBlockRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
        "parentHash": "0xf3193f53d141c9cdd594d7d85598673548983d94e307a2ff0724450594d08ca3",
        "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
        "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
        "size": "0x25f",
        "stateRoot": "0x103b468135ef153cd1879e8791ff24aaf6c6e9221480451f8345de58e49863e5",
        "timestamp": "0x684cb633",
        "transactions": [],
        "transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
        "uncles": [],
        "withdrawals": [],
        "withdrawalsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
    }
}

eth_getBlockByHash

Returns information about a block by hash.

Parameters

Parameter	Data Type	Required	Description
block	hash	Yes	Block context for getting the block details.
is full	boolean	No	Whether to fetch the full block. If false, will only fetch the header and the list of transaction hashes.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getBlockByHash",
    "params": [
        "0x21c3ac17a523528af506a37601fcb1c81d029f8b68dc63cd094f72767acdfd13",
        false
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": {
        "baseFeePerGas": "0x7",
        "blobGasUsed": "0x0",
        "difficulty": "0x0",
        "excessBlobGas": "0x0",
        "extraData": "0xd883010f03846765746888676f312e32342e31856c696e7578",
        "gasLimit": "0x1c9c380",
        "gasUsed": "0x0",
        "hash": "0xe50299c8e2fd9f7464f85b10d1c5a284d2f59b575cc678c364f27bfb0f80082d",
        "logsBloom": "0x000000000000000000000000000000",
        "miner": "0x992d7bd1a362e7cf1b3f8badf541fa1e630d5ddf",
        "mixHash": "0x8ee4d266fc4107fa2e302c7352cc4f98b464967a06071488b26377651c4c5491",
        "nonce": "0x0000000000000000",
        "number": "0x26d21a",
        "parentBeaconBlockRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
        "parentHash": "0xf3193f53d141c9cdd594d7d85598673548983d94e307a2ff0724450594d08ca3",
        "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
        "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
        "size": "0x25f",
        "stateRoot": "0x103b468135ef153cd1879e8791ff24aaf6c6e9221480451f8345de58e49863e5",
        "timestamp": "0x684cb633",
        "transactions": [],
        "transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
        "uncles": [],
        "withdrawals": [],
        "withdrawalsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
    }
}

eth_getBlockTransactionCountByNumber

Returns the number of transactions in a block matching the given block number.

Parameters

Parameter	Data Type	Required	Description
block	block	Yes	Block context for getting the transaction count (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getBlockTransactionCountByNumber",
    "params": [
        "latest"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x2"
}

eth_getBlockTransactionCountByHash

Returns the number of transactions in a block from a block matching the given block hash.

Parameters

Parameter	Data Type	Required	Description
block	hash	Yes	Block context for getting the transaction count.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getBlockTransactionCountByHash",
    "params": [
        "0x540ce60a100a78ea669343f650f2d01c3e7f347dae349be7c14a3948e4bd8f87"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x3"
}

eth_getUncleCountByBlockNumber

Returns the number of uncles in a block from a block matching the given block number.

Parameters

Parameter	Data Type	Required	Description
block	block	Yes	Block context for getting the uncle count (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getUncleCountByBlockNumber",
    "params": [
        "finalized"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x1"
}

eth_getUncleCountByBlockHash

Returns the number of uncles in a block from a block matching the given block hash.

Parameters

Parameter	Data Type	Required	Description
block	hash	Yes	Block context for getting the uncle count.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getUncleCountByBlockHash",
    "params": [
        "0x21c3ac17a523528af506a37601fcb1c81d029f8b68dc63cd094f72767acdfd13"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x3"
}

eth_getTransactionByHash

Returns the information about a transaction requested by transaction hash.

Parameters

Parameter	Data Type	Required	Description
transaction	hash	Yes	Hash of a transaction.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionByHash",
    "params": [
        "0x5f207cd775d345266a36f53d276ff9c87bc9e11524f8291badb555e6ddbe2b59"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": {
        "blockHash": "0x540ce60a100a78ea669343f650f2d01c3e7f347dae349be7c14a3948e4bd8f87",
        "blockNumber": "0x26c944",
        "from": "0x9f8fc4dadf06a5cb0d20312d51b5f5f18fb1b3cd",
        "gas": "0x222e0",
        "gasPrice": "0x28fa6ae07",
        "hash": "0x5f207cd775d345266a36f53d276ff9c87bc9e11524f8291badb555e6ddbe2b59",
        "input": "0x8803dbee0000000000000000000000000000000000000000000005c4e66acb0a36ad20005",
        "nonce": "0x12a0",
        "to": "0xfe2d7494f77f6f6421b13125d0f537973a3f11b7",
        "transactionIndex": "0x0",
        "value": "0x0",
        "type": "0x0",
        "chainId": "0x15aeb",
        "v": "0x2b5f9",
        "r": "0x7644671c4e2e9f6405d7a75313a0a802402cecca28501d8a3901fcb680ce0a02",
        "s": "0x73616bec7a052639cbf481d3f2209ec9fa8828edf024c55ff8d29db7dc1bc8d3"
    }
}

eth_getTransactionByBlockNumberAndIndex

Returns information about a transaction by block number and transaction index position.

Parameters

Parameter	Data Type	Required	Description
block	block	Yes	Block context for getting the transaction details (e.g. earliest, latest, pending, finalized, or hex block number).
index	int	Yes	Transaction index.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionByBlockNumberAndIndex",
    "params": [
        "latest",
        "0x1"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": {
        "blockHash": "0xd6417b2f416a990e3fcca093f217d2a2809f0f1fb15faccc611249a2bf34cb72",
        "blockNumber": "0x26eb8f",
        "from": "0x66666ac6855e0f86e4086e79b5e15471a5e44dc0",
        "gas": "0x222e0",
        "gasPrice": "0x28fa6ae07",
        "hash": "0x789e21dbacde08539431e2fe6cf6ea36eadcaacb065093f8cdd66e0d3f7f881e",
        "input": "0x8803dbee0000000000000000000000000000000000000000000003b1853272425e4",
        "nonce": "0x1b08",
        "to": "0xfe2d7494f77f6f6421b13125d0f537973a3f11b7",
        "transactionIndex": "0x1",
        "value": "0x0",
        "type": "0x0",
        "chainId": "0x15aeb",
        "v": "0x2b5fa",
        "r": "0x3aaf0854ba91179e30c29d8ed144c75d3361509d8bf4eec9a5cba4d44716eeb1",
        "s": "0x4f854b0574b67cb07cafd7aabac81928ac8d9abd8a5830542fbd30d33b256ec0"
    }
}

eth_getTransactionByBlockHashAndIndex

Returns information about a transaction by block hash and transaction index position.

Parameters

Parameter	Data Type	Required	Description
block	hash	Yes	Block context for getting the transaction details.
index	int	Yes	Transaction index.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionByBlockHashAndIndex",
    "params": [
        "0x540ce60a100a78ea669343f650f2d01c3e7f347dae349be7c14a3948e4bd8f87",
        "0x1"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": {
        "blockHash": "0x540ce60a100a78ea669343f650f2d01c3e7f347dae349be7c14a3948e4bd8f87",
        "blockNumber": "0x26c944",
        "from": "0x0f4a2f426f4c9644818daa8a4336ee373723cdcb",
        "gas": "0x7a120",
        "gasPrice": "0x28fa6ae07",
        "hash": "0xcefbd48cf094ecef7f3710484d11a5acbcd7dcfc489faf44faf34b3e796aca1e",
        "input": "0xe4e57b9e000000000000000000000000627cdfca8a71a5df4f292cef4d7f56693529f8f",
        "nonce": "0x27",
        "to": "0xf4595a495b717ccf0181edd9fe231bf3f68e2cdb",
        "transactionIndex": "0x1",
        "value": "0x0",
        "type": "0x0",
        "chainId": "0x15aeb",
        "v": "0x2b5fa",
        "r": "0x818c321426f59cd4e2463e9ce6f4dc0c09aa45f3f11b02fde06aa9ee0e2f27e5",
        "s": "0x2dea7eaf5dfb809ad6477cc515aba077af83913329292f63847f0a90075bb325"
    }
}

eth_getTransactionReceipt

Returns the receipt of a transaction by transaction hash.

Parameters

Parameter	Data Type	Required	Description
transaction	hash	Yes	Block context for getting the transaction details.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionReceipt",
    "params": [
        "0x5f207cd775d345266a36f53d276ff9c87bc9e11524f8291badb555e6ddbe2b59"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": {
        "blockHash": "0x540ce60a100a78ea669343f650f2d01c3e7f347dae349be7c14a3948e4bd8f87",
        "blockNumber": "0x26c944",
        "contractAddress": null,
        "cumulativeGasUsed": "0x19661",
        "effectiveGasPrice": "0x28fa6ae07",
        "from": "0x9f8fc4dadf06a5cb0d20312d51b5f5f18fb1b3cd",
        "gasUsed": "0x19661",
        "logs": [
            {
                "address": "0xcf43f7703d9b4e8835f977ef364b4014fa7e856e",
                "topics": [
                    "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
                    "0x0000000000000000000000009f8fc4dadf06a5cb0d20312d51b5f5f18fb1b3cd",
                    "0x0000000000000000000000009f54888cfb28a016029697597484dce04d3a28d7"
                ],
                "data": "0x0000000000000000000000000000000000000000000000252e8afc588557535b",
                "blockNumber": "0x26c944",
                "transactionHash": "0x5f207cd775d345266a36f53d276ff9c87bc9e11524f8291badb555e6ddbe2b59",
                "transactionIndex": "0x0",
                "blockHash": "0x540ce60a100a78ea669343f650f2d01c3e7f347dae349be7c14a3948e4bd8f87",
                "logIndex": "0x0",
                "removed": false
            }
        ],
        "logsBloom": "0x00208800002000020000000080000000001000400000000000",
        "status": "0x1",
        "to": "0xfe2d7494f77f6f6421b13125d0f537973a3f11b7",
        "transactionHash": "0x5f207cd775d345266a36f53d276ff9c87bc9e11524f8291badb555e6ddbe2b59",
        "transactionIndex": "0x0",
        "type": "0x0"
    }
}

eth_getUncleByBlockNumberAndIndex

Returns the information about an uncle of a block by a number and an uncle index position.

Parameters

Parameter	Data Type	Required	Description
block	block	Yes	Block context for getting an uncle of a block (e.g. earliest, latest, pending, finalized, or hex block number).
index	int	Yes	Uncle index.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getUncleByBlockNumberAndIndex",
    "params": [
        "0x26c949",
        "0x1"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x1"
}

eth_getUncleByBlockHashAndIndex

Returns the information about an uncle of a block by a hash and an uncle index position.

Parameters

Parameter	Data Type	Required	Description
block	hash	Yes	Block context for getting an uncle of a block.
index	int	Yes	Uncle index.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_getUncleByBlockHashAndIndex",
    "params": [
        "0x540ce60a100a78ea669343f650f2d01c3e7f347dae349be7c14a3948e4bd8f87",
        "0x1"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": "0x1"
}

eth_accounts

Returns a list of addresses owned by the client.

Parameters

None.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_accounts",
    "params": []
}

Response Example

{
    "jsonrpc": "2.0",
    "result": []
}

eth_syncing

Returns an object with the data about the sync status or false.

Parameters

None.

Request Example

{
    "jsonrpc": "2.0",
    "method": "eth_syncing",
    "params": []
}

Response Example

{
    "jsonrpc": "2.0",
    "result": false
}

debug_traceCall

Runs an eth_call within the context of the given block execution using the final state of parent block as the base.

Parameters

Parameter	Data Type	Required	Description
transaction	object	-	-
from	address	No	Source of the transaction call. Useful to impersonate another account.
to	address	Yes	Target contract address.
gas	int	No	Gas limit.
gas price	int	No	Gas price willing to be paid by the sender in wei.
value	int	No	Amount of wei sent with the call.
data	bytes	No	Transaction call input.
block	block	Yes	Block context for executing the trace call (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "debug_traceCall",
    "params": [
        {
            "from": null,
            "to": "0xA263497921e036fEC48E1457499e850689D05bAd",
            "gas": null,
            "gasPrice": null,
            "value": null,
            "data": null
        },
        "latest"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": {
        "gas": 21000,
        "failed": false,
        "returnValue": "",
        "structLogs": []
    }
}

debug_traceTransaction

Attempts to run the transaction in the exact same manner as it was executed on the network. It will replay any transaction that may have been executed prior to this one before it and will then attempt to execute the transaction that corresponds to the given hash.

Parameters

Parameter	Data Type	Required	Description
transaction	hash	Yes	Transaction hash.

Request Example

{
    "jsonrpc": "2.0",
    "method": "debug_traceTransaction",
    "params": [
        "0x5f207cd775d345266a36f53d276ff9c87bc9e11524f8291badb555e6ddbe2b59"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": {
        "gas": 104033,
        "failed": false,
        "returnValue": "0000000000000000000000000000005c4e66acb0a36ad2000",
        "structLogs": [
            {
                "pc": 0,
                "op": "PUSH1",
                "gas": 116916,
                "gasCost": 3,
                "depth": 1,
                "stack": []
            },
            {
                "pc": 2,
                "op": "PUSH1",
                "gas": 116913,
                "gasCost": 3,
                "depth": 1,
                "stack": [
                    "0x80"
                ]
            },
        ]
    }
}

debug_traceBlockByNumber

Replays the block that is already present in the database.

Parameters

Parameter	Data Type	Required	Description
block	block	Yes	Block context for tracking a block (e.g. earliest, latest, pending, finalized, or hex block number).

Request Example

{
    "jsonrpc": "2.0",
    "method": "debug_traceBlockByNumber",
    "params": [
        "latest"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": [
        {
            "txHash": "0xfcd3102fe865110c0fe568d0c7e2cc793091b1b46d8d7fe30014242f3c4c7394",
            "result": {
                "gas": 133651,
                "failed": false,
                "returnValue": "",
                "structLogs": [
                    {
                        "pc": 0,
                        "op": "PUSH1",
                        "gas": 186823,
                        "gasCost": 3,
                        "depth": 1,
                        "stack": []
                    },
                ]
            }
        }
    ]
}          

debug_traceBlockByHash

Replays the block that is already present in the database.

Parameters

Parameter	Data Type	Required	Description
block	has	Yes	Block context for tracking a block.

Request Example

{
    "jsonrpc": "2.0",
    "method": "debug_traceBlockByHash",
    "params": [
        "0x540ce60a100a78ea669343f650f2d01c3e7f347dae349be7c14a3948e4bd8f87"
    ]
}

Response Example

{
    "jsonrpc": "2.0",
    "result": [
        {
            "txHash": "0x5f207cd775d345266a36f53d276ff9c87bc9e11524f8291badb555e6ddbe2b59",
            "result": {
                "gas": 104033,
                "failed": false,
                "returnValue": "00000000000000000000000000000000000000000000005c4e66acb0a36ad2000",
                "structLogs": [
                    {
                        "pc": 0,
                        "op": "PUSH1",
                        "gas": 116916,
                        "gasCost": 3,
                        "depth": 1,
                        "stack": []
                    },
                ]
            }
        }
    ]
}