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trace_callMany RPC Method

Performs multiple simulated calls and returns trace data for each one.

Updated on
Jun 10, 2026
This method requires appending /nanoreth to your HyperLiquid endpoint URL. Debug and Trace methods are not supported on /evm endpoints. Use /nanoreth instead of /evm to access tracing functionality.

Parameters

array
array
REQUIRED

An array of call and trace type pairs. Each element is an array containing a transaction call object and an array of trace types:

object
object

The transaction call object with the following fields:

from
string

The address the transaction is sent from

to
string
REQUIRED

The address the transaction is directed to

gas
integer

The integer of the gas provided for the transaction execution

gasPrice
integer

The integer of the gasPrice used for each paid gas encoded as hexadecimal

value
integer

The integer of the value sent with this transaction encoded as hexadecimal

data
string

The hash of the method signature and encoded parameters, see the Ethereum Contract ABI

array
array

The type of trace, which can be one of the following: vmTrace, trace, stateDiff

blockNumber
string
REQUIRED

The block number as a string in hexadecimal format 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

Returns

array
array

An array of trace result objects, one for each call in the input array

output
string

The data returned as output encoded in hexadecimal format

stateDiff
object | null

The altered Ethereum state due to execution of the given transaction, or null if not available

trace
array

An array of basic trace objects for the given transaction

action
object

The action performed during the trace

from
string

The address of the sender

callType
string

The type of call such as call, staticcall, delegatecall

gas
string

The gas provided by the sender, encoded as hexadecimal

input
string

The data sent along with the transaction

to
string

The address of the receiver

value
string

The value sent with this transaction, encoded as hexadecimal

result
object

The execution result of the trace

gasUsed
string

The amount of gas used by this trace

output
string

The return value of the contract call, empty if no RETURN executed

subtraces
integer

The number of subtraces (internal calls) within this trace

traceAddress
array

The list of addresses where the call executed, including parent calls and order

type
string

The type of the trace, such as call or create

vmTrace
object | null

The full trace of the virtual machine's state during execution, including sub-calls, or null if not available

Request
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