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debug_traceTransaction RPC Method

Returns all traces of a given transaction.

Updated on
Mar 27, 2026
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Parameters

transactionHash
string
REQUIRED

The transaction hash that needs to be traced, encoded in hexadecimal format

object
object

The tracer object with the following fields:

tracer
string

The type of tracer. It could be callTracer or prestateTracer

callTracer
string

The calltracer keeps track of all call frames, including depth 0 calls, that are made during a transaction

prestateTracer
string

The prestateTracer replays the transaction and tracks every part of state that occured during the transaction

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

timeout
string

A string of decimal integers that overrides the JavaScript-based tracing calls default timeout of 5 seconds

Returns

result
object

The result object which contains the following fields

from
string

The address the transaction is sent from

gas
string

The gas provided for the transaction execution encoded as hexadecimal

gasUsed
string

The gas used encoded as hexadecimal

to
string

The address the transaction is directed to

input
string

The input data provided with the transaction encoded as hexadecimal

output
string

(Optional) The output data of the call encoded as hexadecimal

calls
array

(Optional) The array of internal calls made during the transaction

object
object

The internal call object

from
string

The address making the call

gas
string

The gas limit specified for the call encoded as hexadecimal

gasUsed
string

The gas used during the call encoded as hexadecimal

to
string

The address being called

input
string

The input data for the call encoded as hexadecimal

output
string

(Optional) The output data of the call encoded as hexadecimal

calls
array

(Optional) The nested array of internal calls made during this call

value
string

The value in wei sent with the call encoded as hexadecimal

type
string

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

value
string

The value in wei sent with this transaction encoded as hexadecimal

type
string

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

Request
Response
1
{
2
"jsonrpc": "2.0",
3
"id": 1,
4
"result": {
5
"calls": [
6
{
7
"from": "0x4200000000000000000000000000000000000015",
8
"gas": "0xe9b52",
9
"gasUsed": "0x3fdf",
10
"input": "0x440a5e20000007d0000dbba0000000000000000b00000000672cc02300000000014282c2000000000000000000000000000000000000000000000000000000032b5a2481000000000000000000000000000000000000000000000000000000000007dcc27f63f53bba0ae499651943bdda527a116df9f2529fd15b88be3b9bc46094d9ad0000000000000000000000002f60a5184c63ca94f82a27100643dbabe4f3f7fd",
11
"to": "0xc0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d30015",
12
"type": "DELEGATECALL",
13
"value": "0x0"
14
}
15
],
16
"from": "0xdeaddeaddeaddeaddeaddeaddeaddeaddead0001",
17
"gas": "0xf4240",
18
"gasUsed": "0xab96",
19
"input": "0x440a5e20000007d0000dbba0000000000000000b00000000672cc02300000000014282c2000000000000000000000000000000000000000000000000000000032b5a2481000000000000000000000000000000000000000000000000000000000007dcc27f63f53bba0ae499651943bdda527a116df9f2529fd15b88be3b9bc46094d9ad0000000000000000000000002f60a5184c63ca94f82a27100643dbabe4f3f7fd",
20
"to": "0x4200000000000000000000000000000000000015",
21
"type": "CALL",
22
"value": "0x0"
23
}
24
}
1
{
2
"jsonrpc": "2.0",
3
"id": 1,
4
"result": {
5
"calls": [
6
{
7
"from": "0x4200000000000000000000000000000000000015",
8
"gas": "0xe9b52",
9
"gasUsed": "0x3fdf",
10
"input": "0x440a5e20000007d0000dbba0000000000000000b00000000672cc02300000000014282c2000000000000000000000000000000000000000000000000000000032b5a2481000000000000000000000000000000000000000000000000000000000007dcc27f63f53bba0ae499651943bdda527a116df9f2529fd15b88be3b9bc46094d9ad0000000000000000000000002f60a5184c63ca94f82a27100643dbabe4f3f7fd",
11
"to": "0xc0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d30015",
12
"type": "DELEGATECALL",
13
"value": "0x0"
14
}
15
],
16
"from": "0xdeaddeaddeaddeaddeaddeaddeaddeaddead0001",
17
"gas": "0xf4240",
18
"gasUsed": "0xab96",
19
"input": "0x440a5e20000007d0000dbba0000000000000000b00000000672cc02300000000014282c2000000000000000000000000000000000000000000000000000000032b5a2481000000000000000000000000000000000000000000000000000000000007dcc27f63f53bba0ae499651943bdda527a116df9f2529fd15b88be3b9bc46094d9ad0000000000000000000000002f60a5184c63ca94f82a27100643dbabe4f3f7fd",
20
"to": "0x4200000000000000000000000000000000000015",
21
"type": "CALL",
22
"value": "0x0"
23
}
24
}
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