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debug_traceCall RPC Method

Returns the number of possible tracing result by executing an eth call within the context of the given block execution.

Updated on
Mar 27, 2026

Parameters

object
object

The transaction call object with the following fields:

from
string

The initiating Ethereum address for the transfer, which will be null if not applicable

to
string

The address the transaction is directed to, which will be null if not applicable

gas
integer

The integer of the gas provided for the transaction execution

gasPrice
integer

The integer of the gasPrice used for each paid gas

value
integer

The integer of the value sent with this transaction

data
string

The hash of the method signature and encoded parameters

blockReference
string

The block number in hexadecimal format, the block hash, or tags. The supported tag values include earliest for the earliest/genesis block, latest for the latest mined block, pending for the pending state/transactions, safe for the most recent secure block, and finalized for the most recent secure block accepted by more than 2/3 of validators

tracerObject
object
REQUIRED

The tracer object with the following fields:

tracer
string

The type of tracer. It could be callTracer or prestateTracer

tracerConfig
object

The object to specify the configurations of the tracer

onlyTopCall
boolean

When set to true, this will only trace the primary (top-level) call and not any sub-calls. It eliminates the additional processing for each call frame

Returns

result
object

The transaction trace object, which has the following fields:

from
string

The address the transaction is sent from

gas
string

The gas provided for the transaction execution

gasUsed
string

The gas used during execution

to
string

The address the transaction is directed to

input
string

The input data sent with the transaction

value
string

The value (in Wei) sent with the transaction

type
string

The type of the call (e.g., CALL, DELEGATECALL, STATICCALL, etc.)

Request
Response
1
{
2
"jsonrpc": "2.0",
3
"id": 1,
4
"result": {
5
"calls": "0x0",
6
"error": "0x0",
7
"from": "0x0",
8
"gas": "0x0",
9
"gasUsed": "0x0",
10
"input": "0x0",
11
"output": "0x0",
12
"revertReason": "0x0",
13
"to": "0x0",
14
"type": "0x0",
15
"value": "0x0"
16
}
17
}
1
{
2
"jsonrpc": "2.0",
3
"id": 1,
4
"result": {
5
"calls": "0x0",
6
"error": "0x0",
7
"from": "0x0",
8
"gas": "0x0",
9
"gasUsed": "0x0",
10
"input": "0x0",
11
"output": "0x0",
12
"revertReason": "0x0",
13
"to": "0x0",
14
"type": "0x0",
15
"value": "0x0"
16
}
17
}
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