starknet_simulateTransactions

Simulates the execution of the specified transactions at the specified block.

Path parameters

apiKeystringRequired

Request

This endpoint expects an object.

transactionslist of objectsRequired

A sequence of Starknet transactions to simulate. If multiple transactions are provided, each transaction is simulated on the state resulting from applying the previous transactions.

block_idobject or enumRequired

The block identifier

simulation_flagslist of enumsRequired

A set of flags used for simulation

Allowed values:

Response

A sequence of transaction simulation results

transaction_traceobject

An execution trace of the transaction

fee_estimationobject

An estimate of the fee required for the network to process the transaction

1	import requests
2
3	url = "https://starknet-mainnet.g.alchemy.com/v2/docs-demo"
4
5	headers = {"Content-Type": "application/json"}
6
7	response = requests.post(url, headers=headers)
8
9	print(response.json())

1	{
2	"id": 1,
3	"jsonrpc": "2.0",
4	"result": [
5	{
6	"transaction_trace": {
7	"type": "INVOKE",
8	"max_fee": "foo",
9	"version": "0x0",
10	"signature": [
11	"foo"
12	],
13	"contract_address": "foo",
14	"entry_point_selector": "foo",
15	"calldata": [
16	"foo"
17	]
18	},
19	"fee_estimation": {}
20	}
21	]
22	}