Simulate transaction
POST
API that simulates a transaction without actually executing it.The simulation result includes the same transaction output and events as when executing an actual signed transaction. However, the state hash is not included because storage is not updated. You can use this API to estimate the maximum gas amount required when submitting a transaction.How to use:
Path Parameters
chainstringrequired
Parameter specifying the target chain to query.networkstringrequired
Parameter specifying the network of the target chain.Query Parameters
estimate_gas_priceboolean
When set to True, the transaction's gas unit price is ignored and the estimated value is used.estimate_max_gasboolean
When set to True, the transaction's max gas amount is ignored and the estimated value is used.estimate_prioritized_gas_uint_priceboolean
When set to True, the transaction is executed at a higher price than the estimate.Responses
typestringrequired
The type of the transactionhashstringrequired
A field representing the unique identifier of the transaction, provided as a 64-character hexadecimal string starting with 0x.senderstringrequired
A field representing the address of the account that sent the transaction.When expressed as a string, it is displayed as a 64-character hexadecimal string, and may be abbreviated by omitting leading zeros and adding 0x.sequence_numberstringrequired
A field representing the transaction occurrence order.Represents a 64-bit unsigned integer as a string.max_gas_amountstringrequired
A field representing the maximum amount of gas to use when the transaction occurs.Represents a 64-bit unsigned integer as a string.gas_unit_pricestringrequired
A field representing the gas price to use when the transaction occurs.Represents a 64-bit unsigned integer as a string.expiration_timestamp_secsstringrequired
A field representing the transaction expiration time.Represents a 64-bit unsigned integer as a string.payloadoneOfrequired
typestringrequired
The type of the payloadfunctionstringrequired
String representation of the Entry Function identifier defined on-chain.type_argumentsarrayrequired
Field representing the generic type arguments of the Entry function.argumentsarrayrequired
Field representing the arguments of the Entry function.signatureoneOf
typestringrequired
The type of the signaturepublic_keystringrequired
All byte (Vec) data is expressed as a hex-encoded string starting with 0x, with two hex digits per byte.Unlike the Address type, HexEncodedBytes does not omit any zeros.signaturestringrequired
All byte (Vec) data is expressed as a hex-encoded string starting with 0x, with two hex digits per byte.Unlike the Address type, HexEncodedBytes does not omit any zeros.replay_protection_noncestring
A field representing the nonce used to prevent transaction replay attacks.Represents a 64-bit unsigned integer as a string.codestringrequired
Code identifying the cause of the failed request.messagestringrequired
Detailed message including the name and value of the invalid parameter.{"code": "ERROR_CODE","message": "Bad Request"}
cURL
curl -X POST 'https://aptos-mainnet.nodit.io/v1/transactions/simulate' \-H 'Content-Type: application/json' \-H 'X-API-KEY: nodit-demo' \-d '{}'