Submit Transaction

This endpoint accepts transaction submissions in two formats.

Submit transaction

This endpoint accepts transaction submissions in two formats.

To submit a transaction as JSON, you must submit a SubmitTransactionRequest. To build this request, do the following:

1. Encode the transaction as BCS. If you are using a language that has native BCS support, make sure of that library. If not, you may take advantage of /transactions/encode_submission. When using this endpoint, make sure you trust the node you're talking to, as it is possible they could manipulate your request.
2. Sign the encoded transaction and use it to create a TransactionSignature.
3. Submit the request. Make sure to use the "application/json" Content-Type.

To submit a transaction as BCS, you must submit a SignedTransaction encoded as BCS. See SignedTransaction in types/src/transaction/mod.rs. Make sure to use the application/x.aptos.signed_transaction+bcs Content-Type.

POSThttps://mainnet.aptos.validationcloud.io/v1/<YOUR_API_KEY_HERE>/transactions

Body

application/jsonapplication/x.aptos.signed_transaction+bcs

sender*Address (string (hex))

A hex encoded 32 byte Aptos account address.

This is represented in a string as a 64 character hex string, sometimes shortened by stripping leading 0s, and adding a 0x.

For example, address 0x0000000000000000000000000000000000000000000000000000000000000001 is represented as 0x1.

sequence_number*U64 (string (uint64))

A string containing a 64-bit unsigned integer.

We represent u64 values as a string to ensure compatibility with languages such as JavaScript that do not parse u64s in JSON natively.

max_gas_amount*U64 (string (uint64))

A string containing a 64-bit unsigned integer.

We represent u64 values as a string to ensure compatibility with languages such as JavaScript that do not parse u64s in JSON natively.

gas_unit_price*U64 (string (uint64))

A string containing a 64-bit unsigned integer.

We represent u64 values as a string to ensure compatibility with languages such as JavaScript that do not parse u64s in JSON natively.

expiration_timestamp_secs*U64 (string (uint64))

A string containing a 64-bit unsigned integer.

We represent u64 values as a string to ensure compatibility with languages such as JavaScript that do not parse u64s in JSON natively.

payload*TransactionPayload (object)

An enum of the possible transaction payloads

TransactionPayload_EntryFunctionPayload (all of)TransactionPayload_ScriptPayload (all of)TransactionPayload_ModuleBundlePayload (all of)TransactionPayload_MultisigPayload (all of)

signature*TransactionSignature (object)

An enum representing the different transaction signatures available

TransactionSignature_Ed25519Signature (all of)TransactionSignature_MultiEd25519Signature (all of)TransactionSignature_MultiAgentSignature (all of)

Response

202400403413500503507

Headers

Body

application/jsonapplication/x-bcs

hash*HashValue (string)

sender*Address (string (hex))

A hex encoded 32 byte Aptos account address.

This is represented in a string as a 64 character hex string, sometimes shortened by stripping leading 0s, and adding a 0x.

For example, address 0x0000000000000000000000000000000000000000000000000000000000000001 is represented as 0x1.

sequence_number*U64 (string (uint64))

A string containing a 64-bit unsigned integer.

We represent u64 values as a string to ensure compatibility with languages such as JavaScript that do not parse u64s in JSON natively.

max_gas_amount*U64 (string (uint64))

A string containing a 64-bit unsigned integer.

We represent u64 values as a string to ensure compatibility with languages such as JavaScript that do not parse u64s in JSON natively.

gas_unit_price*U64 (string (uint64))

A string containing a 64-bit unsigned integer.

We represent u64 values as a string to ensure compatibility with languages such as JavaScript that do not parse u64s in JSON natively.

expiration_timestamp_secs*U64 (string (uint64))

A string containing a 64-bit unsigned integer.

We represent u64 values as a string to ensure compatibility with languages such as JavaScript that do not parse u64s in JSON natively.

payload*TransactionPayload (object)

An enum of the possible transaction payloads

TransactionPayload_EntryFunctionPayload (all of)TransactionPayload_ScriptPayload (all of)TransactionPayload_ModuleBundlePayload (all of)TransactionPayload_MultisigPayload (all of)

signatureTransactionSignature (object)

An enum representing the different transaction signatures available

TransactionSignature_Ed25519Signature (all of)TransactionSignature_MultiEd25519Signature (all of)TransactionSignature_MultiAgentSignature (all of)

Request

JavaScriptCurl

const response = await fetch('https://mainnet.aptos.validationcloud.io/v1/<YOUR_API_KEY_HERE>/transactions', {
    method: 'POST',
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      "sender": "0x88fbd33f54e1126269769780feb24480428179f552e2313fbe571b72e62a1ca1 ",
      "sequence_number": "32425224034",
      "max_gas_amount": "32425224034",
      "gas_unit_price": "32425224034",
      "expiration_timestamp_secs": "32425224034",
      "payload": {
        "type": "entry_function_payload",
        "function": "0x1::aptos_coin::transfer",
        "type_arguments": [
          "text"
        ],
        "arguments": []
      },
      "signature": {
        "type": "ed25519_signature",
        "public_key": "0x88fbd33f54e1126269769780feb24480428179f552e2313fbe571b72e62a1ca1 ",
        "signature": "0x88fbd33f54e1126269769780feb24480428179f552e2313fbe571b72e62a1ca1 "
      }
    }),
});
const data = await response.json();

Response

{
  "hash": "text",
  "sender": "0x88fbd33f54e1126269769780feb24480428179f552e2313fbe571b72e62a1ca1 ",
  "sequence_number": "32425224034",
  "max_gas_amount": "32425224034",
  "gas_unit_price": "32425224034",
  "expiration_timestamp_secs": "32425224034",
  "payload": {
    "type": "entry_function_payload",
    "function": "0x1::aptos_coin::transfer",
    "type_arguments": [
      "text"
    ],
    "arguments": []
  },
  "signature": {
    "type": "ed25519_signature",
    "public_key": "0x88fbd33f54e1126269769780feb24480428179f552e2313fbe571b72e62a1ca1 ",
    "signature": "0x88fbd33f54e1126269769780feb24480428179f552e2313fbe571b72e62a1ca1 "
  }
}