curl --request POST \
  --url https://public-api.etoro.com/api/v1/sub-accounts/me/accounts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <x-api-key>' \
  --header 'x-request-id: <x-request-id>' \
  --header 'x-user-key: <x-user-key>' \
  --data '
{
  "providerName": "etoro-trading",
  "additionalParams": {
    "username": "my-trading-account"
  }
}
'

import requests

url = "https://public-api.etoro.com/api/v1/sub-accounts/me/accounts"

payload = {
    "providerName": "etoro-trading",
    "additionalParams": { "username": "my-trading-account" }
}
headers = {
    "x-request-id": "<x-request-id>",
    "x-api-key": "<x-api-key>",
    "x-user-key": "<x-user-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-request-id': '<x-request-id>',
    'x-api-key': '<x-api-key>',
    'x-user-key': '<x-user-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    providerName: 'etoro-trading',
    additionalParams: {username: 'my-trading-account'}
  })
};

fetch('https://public-api.etoro.com/api/v1/sub-accounts/me/accounts', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://public-api.etoro.com/api/v1/sub-accounts/me/accounts",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'providerName' => 'etoro-trading',
    'additionalParams' => [
        'username' => 'my-trading-account'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "x-api-key: <x-api-key>",
    "x-request-id: <x-request-id>",
    "x-user-key: <x-user-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://public-api.etoro.com/api/v1/sub-accounts/me/accounts"

	payload := strings.NewReader("{\n  \"providerName\": \"etoro-trading\",\n  \"additionalParams\": {\n    \"username\": \"my-trading-account\"\n  }\n}")

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

	req.Header.Add("x-request-id", "<x-request-id>")
	req.Header.Add("x-api-key", "<x-api-key>")
	req.Header.Add("x-user-key", "<x-user-key>")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://public-api.etoro.com/api/v1/sub-accounts/me/accounts")
  .header("x-request-id", "<x-request-id>")
  .header("x-api-key", "<x-api-key>")
  .header("x-user-key", "<x-user-key>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"providerName\": \"etoro-trading\",\n  \"additionalParams\": {\n    \"username\": \"my-trading-account\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://public-api.etoro.com/api/v1/sub-accounts/me/accounts")

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

request = Net::HTTP::Post.new(url)
request["x-request-id"] = '<x-request-id>'
request["x-api-key"] = '<x-api-key>'
request["x-user-key"] = '<x-user-key>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"providerName\": \"etoro-trading\",\n  \"additionalParams\": {\n    \"username\": \"my-trading-account\"\n  }\n}"

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

{
  "account": {
    "subAccountId": "ZXRvcm8tdHJhZGluZw",
    "providerName": "etoro-trading",
    "accountId": "123456789",
    "accountType": "Trading",
    "accountVisibility": "Visible",
    "accountCurrencies": [
      "USD"
    ],
    "status": "Approved",
    "additionalData": {
      "gcid": 123456789,
      "realCid": 654321,
      "demoCid": 111222,
      "username": "my-trading-account"
    }
  },
  "authorization": null
}

{
  "account": {
    "subAccountId": "ZXRvcm8tdHJhZGluZw",
    "providerName": "etoro-trading",
    "accountId": "123456789",
    "accountType": "Trading",
    "accountVisibility": "Visible",
    "accountCurrencies": [
      "USD"
    ],
    "status": "Pending",
    "additionalData": {
      "gcid": 123456789,
      "realCid": 654321,
      "demoCid": 111222,
      "username": "my-trading-account"
    }
  },
  "authorization": null
}