Prepare Transaction From Address

Through this endpoint customers can prepare a transaction from an address with private and public keys. The address doesn’t have to belong to a wallet. The response will include the transaction fee in Wei.

Single Result - This endpoint returns only one single result. POST /blockchain-data/{blockchain}/{network}/transactions/prepare-from-address

Path Parameters

Required
blockchain string

Represents the specific blockchain protocol name, e.g. Ethereum, Bitcoin, etc.

Example : ethereum

Possible Values : binance-smart-chain ethereum-classic ethereum
Required
network string

Represents the name of the blockchain network used; blockchain networks are usually identical as technology and software, but they differ in data, e.g. - "mainnet" is the live network with actual data while networks like "testnet", "goerli" are test networks.

Example : sepolia

Possible Values : testnet mordor mainnet sepolia

Query parameters

Optional
context string

In batch situations the user can use the context to correlate responses with requests. This property is present regardless of whether the response was successful or returned as an error. context is specified by the user.

Example : yourExampleString

Request body schema application/json

Optional
context string

In batch situations the user can use the context to correlate responses with requests. This property is present regardless of whether the response was successful or returned as an error. context is specified by the user.

Example : yourExampleString
Required
data object
- Required
  item object
  - Optional
    additionalData string
    
    Represents an optional note to add a free text in, explaining or providing additional detail on the transaction request.
    
    Example : yourAdditionalStriingHere
  - Required
    amount string
    
    Representation of the transacted amount
    
    Example : 2000000009340
  - Optional
    nonce string
    
    Represents the sequential running number for an address, starting from 0 for the first transaction. E.g., if the nonce of a transaction is 10, it would be the 11th transaction sent from the sender's address.
    
    Example : 0
  - Required
    recipient string
    
    The address which receives this transaction. In UTXO-based protocols like Bitcoin there could be several senders while in account-based protocols like Ethereum there is always only one recipient.
    
    Example : 0x0902a667d6a3f287835e0a4593cae4167384abc6
  - Required
    sender string
    
    Represents the address which sends this transaction. In UTXO-based protocols like Bitcoin there could be several senders while in account-based protocols like Ethereum there is always only one sender.
    
    Example : 0x1d107b75353229768dff96051262ce0088a3e26b
  - Required
    fee object
    
    Defines the amount of the transaction fee.
    
    Optional
    exactAmount string
    
    String representation of the exact amount
    
    Example : 0.00045
    
    Required
    priority string
    
    Enum representation of the fee priority
    
    Example : standard
    
    Possible Values : slow standard fast
    
    Optional
    substractFromAmount boolean
    
    Representation of the subtract from amount whether it is "true", or "false".
    
    Example : True
  - Optional
    transactionType string
    
    Representation of the transaction type. For Ethereum-Classic and Binance Smart Chain there is no need to provide "transactionType" in the request.
    
    Default : gas-fee-market-transaction
    
    Example : access-list-transaction
    
    Possible Values : legacy-transaction access-list-transaction gas-fee-market-transaction

Response schema

201 400 401 402 403 409 415 422 429 500

HTTP Status Code: 201
Content-Type: application/json

The resource has been successfully submitted.

Object :
Required
apiVersion string

Specifies the version of the API that incorporates this endpoint.

Example : 2023-04-25
Required
requestId string

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

Example : 601c1710034ed6d407996b30
Optional
context string

In batch situations the user can use the context to correlate responses with requests. This property is present regardless of whether the response was successful or returned as an error. context is specified by the user.

Example : yourExampleString
Required
data
object
- Required
  item object
  
  Required
  amount string
  
  Representation of the transacted amount
  
  Example : 2000000009340
  
  Optional
  dataHex string
  
  Representation of the data in hex value
  
  Example : 0x006e0065006b006100760073007400720069006e0067
  
  Optional
  nonce string
  
  Represents the sequential running number for an address, starting from 0 for the first transaction. E.g., if the nonce of a transaction is 10, it would be the 11th transaction sent from the sender's address.
  
  Example : 0
  
  Required
  recipient string
  
  The address which receives this transaction. In UTXO-based protocols like Bitcoin there could be several senders while in account-based protocols like Ethereum there is always only one recipient.
  
  Example : 0x041c594a0cc194e826bef5411b29c7f27001b7e3
  
  Required
  sender string
  
  Represents the address which sends this transaction. In UTXO-based protocols like Bitcoin there could be several senders while in account-based protocols like Ethereum there is always only one sender.
  
  Example : 0x03654A9E78771442CAdf8DB37ae60D6a12bAEa9f
  
  Required
  sighash string
  
  Representation of the hash that should be signed
  
  Example : 9f59f25bc9f6cbff293ceee32c1fb25ae82fab23a99b860e26cad800ceadd123
  
  Required
  blockchainSpecific object One Of
  
  object
  
  Required
  fee object
  
  Defines the amount of the transaction fee.
  
  Required
  gasLimit string
  
  Represents the amount of gas used by this specific transaction alone.
  
  Example : 21220
  
  Required
  gasPrice string
  
  Represents the price offered to the miner to purchase this amount of gas.
  
  Example : 47125353
  
  Required
  transactionType string
  
  Representation of the transaction type
  
  Example : legacy-transaction
  
  Possible Values : legacy-transaction
  
  Required
  unit string
  
  Represents the unit of the amount transacted
  
  Example : BNB
  
  object
  
  Required
  fee object
  
  Defines the amount of the transaction fee.
  
  Required
  gasLimit string
  
  Represents the amount of gas used by this specific transaction alone.
  
  Example : 21220
  
  Required
  gasPrice string
  
  Represents the price offered to the miner to purchase this amount of gas.
  
  Example : 47125353
  
  Required
  transactionType string
  
  Representation of the transaction type
  
  Example : access-list-transaction
  
  Possible Values : legacy-transaction access-list-transaction gas-fee-market-transaction
  
  Required
  unit string
  
  Represents the unit of the amount transacted.
  
  Example : WEI
  
  object
  
  Required
  fee object
  
  Defines the amount of the transaction fee.
  
  Required
  gasLimit string
  
  Represents the amount of gas used by this specific transaction alone.
  
  Example : 21220
  
  Required
  gasPrice string
  
  Represents the price offered to the miner to purchase this amount of gas.
  
  Example : 47125353
  
  Required
  transactionType string
  
  Representation of the transaction type
  
  Example : legacy-transaction
  
  Possible Values : legacy-transaction
  
  Required
  unit string
  
  Represents the unit of the amount transacted.
  
  Example : WEI

Credits Cost : 5000 Credits For 1 Result(s)

Try it out

Request Example

Http Java C# PHP Python Ruby Node.js Go

POST

https://rest.cryptoapis.io/blockchain-data/ethereum/sepolia/transactions/prepare-from-address?context=yourExampleString

Headers

Content-Type: application/json

X-API-Key: my-api-key

Request Body

{
    "context": "yourExampleString",
    "data": {
        "item": {
            "additionalData": "yourAdditionalStriingHere",
            "amount": "2000000009340",
            "nonce": "0",
            "recipient": "0x0902a667d6a3f287835e0a4593cae4167384abc6",
            "sender": "0x1d107b75353229768dff96051262ce0088a3e26b",
            "fee": {
                "exactAmount": "0.00045",
                "priority": "standard",
                "substractFromAmount": true
            },
            "transactionType": "access-list-transaction"
        }
    }
}

OkHttpClient client = new OkHttpClient();

MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{
    \"context\": \"yourExampleString\",
    \"data\": {
        \"item\": {
            \"additionalData\": \"yourAdditionalStriingHere\",
            \"amount\": \"2000000009340\",
            \"nonce\": \"0\",
            \"recipient\": \"0x0902a667d6a3f287835e0a4593cae4167384abc6\",
            \"sender\": \"0x1d107b75353229768dff96051262ce0088a3e26b\",
            \"fee\": {
                \"exactAmount\": \"0.00045\",
                \"priority\": \"standard\",
                \"substractFromAmount\": true
            },
            \"transactionType\": \"access-list-transaction\"
        }
    }
}");
Request request = new Request.Builder()
  .url("https://rest.cryptoapis.io/blockchain-data/ethereum/sepolia/transactions/prepare-from-address?context=yourExampleString")
  .post(body)
  .addHeader("Content-Type", "application/json")
  .addHeader("X-API-Key", "my-api-key")
  .build();

Response response = client.newCall(request).execute();

var client = new RestClient("https://rest.cryptoapis.io/blockchain-data/ethereum/sepolia/transactions/prepare-from-address?context=yourExampleString");
var request = new RestRequest(Method.POST);
request.AddHeader("content-type", "application/json");
request.AddHeader(""X-API-Key", "my-api-key");
request.AddParameter("application/json", "{
    \"context\": \"yourExampleString\",
    \"data\": {
        \"item\": {
            \"additionalData\": \"yourAdditionalStriingHere\",
            \"amount\": \"2000000009340\",
            \"nonce\": \"0\",
            \"recipient\": \"0x0902a667d6a3f287835e0a4593cae4167384abc6\",
            \"sender\": \"0x1d107b75353229768dff96051262ce0088a3e26b\",
            \"fee\": {
                \"exactAmount\": \"0.00045\",
                \"priority\": \"standard\",
                \"substractFromAmount\": true
            },
            \"transactionType\": \"access-list-transaction\"
        }
    }
}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);

$request = new HttpRequest();
$request->setUrl('https://rest.cryptoapis.io/blockchain-data/ethereum/sepolia/transactions/prepare-from-address?context=yourExampleString');
$request->setMethod(HTTP_METH_POST);

$request->setHeaders(array(
    'Content-Type' => 'application/json',
    'X-API-Key' => 'my-api-key'
));

$request->setBody('{
    \"context\": \"yourExampleString\",
    \"data\": {
        \"item\": {
            \"additionalData\": \"yourAdditionalStriingHere\",
            \"amount\": \"2000000009340\",
            \"nonce\": \"0\",
            \"recipient\": \"0x0902a667d6a3f287835e0a4593cae4167384abc6\",
            \"sender\": \"0x1d107b75353229768dff96051262ce0088a3e26b\",
            \"fee\": {
                \"exactAmount\": \"0.00045\",
                \"priority\": \"standard\",
                \"substractFromAmount\": true
            },
            \"transactionType\": \"access-list-transaction\"
        }
    }
}');

try {
    $response = $request->send();

    echo $response->getBody();
} catch (HttpException $ex) {
    echo $ex;
}

import http.client

conn = http.client.HTTPConnection("https://rest.cryptoapis.io")

payload = "{
    \"context\": \"yourExampleString\",
    \"data\": {
        \"item\": {
            \"additionalData\": \"yourAdditionalStriingHere\",
            \"amount\": \"2000000009340\",
            \"nonce\": \"0\",
            \"recipient\": \"0x0902a667d6a3f287835e0a4593cae4167384abc6\",
            \"sender\": \"0x1d107b75353229768dff96051262ce0088a3e26b\",
            \"fee\": {
                \"exactAmount\": \"0.00045\",
                \"priority\": \"standard\",
                \"substractFromAmount\": true
            },
            \"transactionType\": \"access-list-transaction\"
        }
    }
}"
    querystring = {"context":"yourExampleString"}
headers = {
  'Content-Type': "application/json",
  'X-API-Key': "my-api-key"
}

conn.request("POST", "blockchain-data,ethereum,sepolia,transactions,prepare-from-address",payload, headers=headers  , params=querystring )

res = conn.getresponse()
data = res.read()

print(data.decode("utf-8"))
}

require 'uri'
require 'net/http'

url = URI("https://rest.cryptoapis.io/blockchain-data/ethereum/sepolia/transactions/prepare-from-address?context=yourExampleString")

http = Net::HTTP.new(url.host, url.port)

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request["X-API-Key"] = 'my-api-key'
request.body = "{
    \"context\": \"yourExampleString\",
    \"data\": {
        \"item\": {
            \"additionalData\": \"yourAdditionalStriingHere\",
            \"amount\": \"2000000009340\",
            \"nonce\": \"0\",
            \"recipient\": \"0x0902a667d6a3f287835e0a4593cae4167384abc6\",
            \"sender\": \"0x1d107b75353229768dff96051262ce0088a3e26b\",
            \"fee\": {
                \"exactAmount\": \"0.00045\",
                \"priority\": \"standard\",
                \"substractFromAmount\": true
            },
            \"transactionType\": \"access-list-transaction\"
        }
    }
}"

response = http.request(request)
puts response.read_body

var https = require("https");

var options = {
  "method": "POST",
  "hostname": "rest.cryptoapis.io",
  "path": "/v2/blockchain-data/ethereum/sepolia/transactions/prepare-from-address",
  "qs": {"context":"yourExampleString"},
  "headers": {
    "Content-Type": "application/json",
    "X-API-Key": "my-api-key"
  }
};

var req = https.request(options, function (res) {
  var chunks = [];

  res.on("data", function (chunk) {
    chunks.push(chunk);
  });

  res.on("end", function () {
    var body = Buffer.concat(chunks);
    console.log(body.toString());
  });
});

req.write(JSON.stringify({
    "context": "yourExampleString",
    "data": {
        "item": {
            "additionalData": "yourAdditionalStriingHere",
            "amount": "2000000009340",
            "nonce": "0",
            "recipient": "0x0902a667d6a3f287835e0a4593cae4167384abc6",
            "sender": "0x1d107b75353229768dff96051262ce0088a3e26b",
            "fee": {
                "exactAmount": "0.00045",
                "priority": "standard",
                "substractFromAmount": true
            },
            "transactionType": "access-list-transaction"
        }
    }
}));

req.end();

package main

import (
  "fmt"
  "net/http"
  "io/ioutil"
)

func main() {

  url := "https://rest.cryptoapis.io/blockchain-data/ethereum/sepolia/transactions/prepare-from-address?context=yourExampleString"

  payload := strings.NewReader("{
    \"context\": \"yourExampleString\",
    \"data\": {
        \"item\": {
            \"additionalData\": \"yourAdditionalStriingHere\",
            \"amount\": \"2000000009340\",
            \"nonce\": \"0\",
            \"recipient\": \"0x0902a667d6a3f287835e0a4593cae4167384abc6\",
            \"sender\": \"0x1d107b75353229768dff96051262ce0088a3e26b\",
            \"fee\": {
                \"exactAmount\": \"0.00045\",
                \"priority\": \"standard\",
                \"substractFromAmount\": true
            },
            \"transactionType\": \"access-list-transaction\"
        }
    }
}")

  req, _ := http.NewRequest("POST", url, payload)

  req.Header.Add("Content-Type", "application/json")
  req.Header.Add("X-API-Key", "my-api-key")

  res, _ := http.DefaultClient.Do(req)

  defer res.Body.Close()
  body, _ := ioutil.ReadAll(res.Body)

  fmt.Println(res)
  fmt.Println(string(body))

}

201 400 401 402 403 409 415 422 429 500

Response Example

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "data": {
        "item": {
            "amount": "2000000009340",
            "dataHex": "0x006e0065006b006100760073007400720069006e0067",
            "nonce": "0",
            "recipient": "0x041c594a0cc194e826bef5411b29c7f27001b7e3",
            "sender": "0x03654A9E78771442CAdf8DB37ae60D6a12bAEa9f",
            "sighash": "9f59f25bc9f6cbff293ceee32c1fb25ae82fab23a99b860e26cad800ceadd123",
            "blockchainSpecific": {
                "fee": {
                    "gasLimit": "21220",
                    "gasPrice": "47125353"
                },
                "transactionType": "legacy-transaction",
                "unit": "BNB"
            }
        }
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "data": {
        "item": {
            "amount": "2000000009340",
            "dataHex": "0x006e0065006b006100760073007400720069006e0067",
            "nonce": "0",
            "recipient": "0x041c594a0cc194e826bef5411b29c7f27001b7e3",
            "sender": "0x03654A9E78771442CAdf8DB37ae60D6a12bAEa9f",
            "sighash": "9f59f25bc9f6cbff293ceee32c1fb25ae82fab23a99b860e26cad800ceadd123",
            "blockchainSpecific": {
                "fee": {
                    "gasLimit": "21220",
                    "gasPrice": "47125353"
                },
                "transactionType": "access-list-transaction",
                "unit": "WEI"
            }
        }
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "data": {
        "item": {
            "amount": "2000000009340",
            "dataHex": "0x006e0065006b006100760073007400720069006e0067",
            "nonce": "0",
            "recipient": "0x041c594a0cc194e826bef5411b29c7f27001b7e3",
            "sender": "0x03654A9E78771442CAdf8DB37ae60D6a12bAEa9f",
            "sighash": "9f59f25bc9f6cbff293ceee32c1fb25ae82fab23a99b860e26cad800ceadd123",
            "blockchainSpecific": {
                "fee": {
                    "gasLimit": "21220",
                    "gasPrice": "47125353"
                },
                "transactionType": "legacy-transaction",
                "unit": "WEI"
            }
        }
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "uri_not_found",
        "message": "The specified URI has not been found. Check the URI and try again.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "limit_greater_than_allowed",
        "message": "You have reached the allowed limit. The maximum number of items for this endpoint is {limit}, please use the specific pagination attributes to get the items in portions.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "invalid_pagination",
        "message": "The pagination attributes that have been used are invalid. Please check the Documentation to see details on pagination.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "missing_api_key",
        "message": "The specific authorization header (API Key) is missing, please check our Authorization section in our Documentation.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "invalid_api_key",
        "message": "The provided API key is invalid. Please, generate a new one from your Dashboard.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "insufficient_credits",
        "message": "You have insufficient credits. Please upgrade your plan from your Dashboard or contact our team via email.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "banned_ip_address",
        "message": "This IP address has been banned. To check the reason for that, please contact our team via email.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "endpoint_not_allowed_for_plan",
        "message": "This endpoint is not available for your current subscription plan, please upgrade your plan to be able to use it.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "endpoint_not_allowed_for_api_key",
        "message": "This endpoint is not available for your API key.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "feature_mainnets_not_allowed_for_plan",
        "message": "Mainnets access is not available for your current subscription plan, please upgrade your plan to be able to use it.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "invalid_data",
        "message": "The data provided seems to be invalid.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "unsupported_media_type",
        "message": "The selected Media Type is unavailable. The Content-Type header should be 'application/json'.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "invalid_request_body_structure",
        "message": "Your request body for POST requests must have a structure of { data: { item: [...properties] } }",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "request_limit_reached",
        "message": "The request limit has been reached. There can be maximum {requests} requests per {seconds} second(s) made. Please contact our team via email if you need more or upgrade your plan.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "unexpected_server_error",
        "message": "An unexpected server error has occurred, we are working to fix this. Please try again later and in case it occurs again please report it to our team via email.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

Key	Value

Prepare Transaction From Address

Path Parameters

Query parameters

Request body schema application/json

Response schema

Object :

Object :

Object :

Object :

Object :

Object :

Object :

Object :

Object :

Object :

Credits Cost : 5000 Credits For 1 Result(s)

Request Example

Response Example

Try It Out API Endpoint