curl --request POST \
--url https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d \
--header 'Content-Type: application/json' \
--data '{
"id": 0,
"jsonrpc": "2.0",
"method": "starknet_simulateTransactions",
"params": [
{
"block_number": 385940
},
[
{
"type": "INVOKE",
"max_fee": "0xb3a2f1ab6d632",
"version": "0x1",
"signature": [
"0x54c2201c7b9021777389e208e28eafc67e4ba1f1aa7016a1123b61c6ff79c29",
"0x58c2d97614e5abfd9668b314f344c945d16ea154cb32a7b08b4445204f1f1d3"
],
"sender_address": "0x0569b13e8164bc8000c0bbcf4887856516643af123c5bc3b01e229e92f9cfd10",
"calldata": [
"0x3",
"0x49d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7",
"0x219209e083275171774dab1df80982e9df2096516f06319c5c6d71ae0a8480c",
"0x3",
"0xfff107e2403123c7df78d91728a7ee5cfd557aec0fa2d2bdc5891c286bbfff",
"0x984e103a8acd6",
"0x0",
"0x68f5c6a61780768455de69077e07e89787839bf8166decfbf92b645209c0fb8",
"0x219209e083275171774dab1df80982e9df2096516f06319c5c6d71ae0a8480c",
"0x3",
"0xfff107e2403123c7df78d91728a7ee5cfd557aec0fa2d2bdc5891c286bbfff",
"0x4c4b40",
"0x0",
"0xfff107e2403123c7df78d91728a7ee5cfd557aec0fa2d2bdc5891c286bbfff",
"0x2f0b3c5710379609eb5495f1ecd348cb28167711b73609fe565a72734550354",
"0xe",
"0x569b13e8164bc8000c0bbcf4887856516643af123c5bc3b01e229e92f9cfd10",
"0x49d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7",
"0x68f5c6a61780768455de69077e07e89787839bf8166decfbf92b645209c0fb8",
"0x1f4",
"0xa76cc",
"0xa7b5e",
"0x984e103a8acd6",
"0x0",
"0x4c4b40",
"0x0",
"0x9542431aa6bf1",
"0x0",
"0x4ac4a0",
"0x0"
],
"nonce": "0x51"
}
],
[
"SKIP_VALIDATE",
"SKIP_FEE_CHARGE"
]
]
}'
starknet_simulateTransactions
curl --request POST \
--url https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d \
--header 'Content-Type: application/json' \
--data '{
"id": 0,
"jsonrpc": "2.0",
"method": "starknet_simulateTransactions",
"params": [
{
"block_number": 385940
},
[
{
"type": "INVOKE",
"max_fee": "0xb3a2f1ab6d632",
"version": "0x1",
"signature": [
"0x54c2201c7b9021777389e208e28eafc67e4ba1f1aa7016a1123b61c6ff79c29",
"0x58c2d97614e5abfd9668b314f344c945d16ea154cb32a7b08b4445204f1f1d3"
],
"sender_address": "0x0569b13e8164bc8000c0bbcf4887856516643af123c5bc3b01e229e92f9cfd10",
"calldata": [
"0x3",
"0x49d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7",
"0x219209e083275171774dab1df80982e9df2096516f06319c5c6d71ae0a8480c",
"0x3",
"0xfff107e2403123c7df78d91728a7ee5cfd557aec0fa2d2bdc5891c286bbfff",
"0x984e103a8acd6",
"0x0",
"0x68f5c6a61780768455de69077e07e89787839bf8166decfbf92b645209c0fb8",
"0x219209e083275171774dab1df80982e9df2096516f06319c5c6d71ae0a8480c",
"0x3",
"0xfff107e2403123c7df78d91728a7ee5cfd557aec0fa2d2bdc5891c286bbfff",
"0x4c4b40",
"0x0",
"0xfff107e2403123c7df78d91728a7ee5cfd557aec0fa2d2bdc5891c286bbfff",
"0x2f0b3c5710379609eb5495f1ecd348cb28167711b73609fe565a72734550354",
"0xe",
"0x569b13e8164bc8000c0bbcf4887856516643af123c5bc3b01e229e92f9cfd10",
"0x49d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7",
"0x68f5c6a61780768455de69077e07e89787839bf8166decfbf92b645209c0fb8",
"0x1f4",
"0xa76cc",
"0xa7b5e",
"0x984e103a8acd6",
"0x0",
"0x4c4b40",
"0x0",
"0x9542431aa6bf1",
"0x0",
"0x4ac4a0",
"0x0"
],
"nonce": "0x51"
}
],
[
"SKIP_VALIDATE",
"SKIP_FEE_CHARGE"
]
]
}'
request
— the list of transactions to simulate.block_id
— the hash of the requested block, or number (height) of the requested block, or a block tag, for the block referencing the state or call the transaction on.result
— the result of the simulation, represented as a list of transaction receipts.starknet_simulateTransactions
is to simulate the execution of a list of transactions that interact with contracts on StarkNet. This can be useful for testing and debugging purposes, as it allows developers to understand the potential outcome of these transactions without actually executing them on the network.
curl --request POST \
--url 'https://alpha-mainnet.starknet.io/feeder_gateway/simulate_transaction?blockNumber=385940' \
--header 'Content-Type: application/json' \
--data-raw '{
"type": "INVOKE_FUNCTION",
"sender_address": "0x0569b13e8164bc8000c0bbcf4887856516643af123c5bc3b01e229e92f9cfd10",
"nonce": "0x51",
"max_fee": "0xb3a2f1ab6d632",
"version": "0x1",
"calldata": [
"0x3",
"0x49d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7",
"0x219209e083275171774dab1df80982e9df2096516f06319c5c6d71ae0a8480c",
"0x3",
"0xfff107e2403123c7df78d91728a7ee5cfd557aec0fa2d2bdc5891c286bbfff",
"0x984e103a8acd6",
"0x0",
"0x68f5c6a61780768455de69077e07e89787839bf8166decfbf92b645209c0fb8",
"0x219209e083275171774dab1df80982e9df2096516f06319c5c6d71ae0a8480c",
"0x3",
"0xfff107e2403123c7df78d91728a7ee5cfd557aec0fa2d2bdc5891c286bbfff",
"0x4c4b40",
"0x0",
"0xfff107e2403123c7df78d91728a7ee5cfd557aec0fa2d2bdc5891c286bbfff",
"0x2f0b3c5710379609eb5495f1ecd348cb28167711b73609fe565a72734550354",
"0xe",
"0x569b13e8164bc8000c0bbcf4887856516643af123c5bc3b01e229e92f9cfd10",
"0x49d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7",
"0x68f5c6a61780768455de69077e07e89787839bf8166decfbf92b645209c0fb8",
"0x1f4",
"0xa76cc",
"0xa7b5e",
"0x984e103a8acd6",
"0x0",
"0x4c4b40",
"0x0",
"0x9542431aa6bf1",
"0x0",
"0x4ac4a0",
"0x0"
],
"signature": ["0x54c2201c7b9021777389e208e28eafc67e4ba1f1aa7016a1123b61c6ff79c29", "0x58c2d97614e5abfd9668b314f344c945d16ea154cb32a7b08b4445204f1f1d3"]
}'
Successful response