curl --request POST \
  --url https://int-api.mx.com/users/{user_guid}/connect_widget_url \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "config": {
    "client_redirect_url": "https://{yoursite.com}",
    "color_scheme": "light",
    "current_institution_code": "mxbank",
    "current_member_guid": "MBR-7c6f361b-e582-15b6-60c0-358f12466b4b",
    "disable_background_agg": false,
    "disable_institution_search": false,
    "enable_app2app": false,
    "include_identity": false,
    "include_transactions": true,
    "is_mobile_webview": false,
    "mode": "aggregation",
    "oauth_referral_source": "BROWSER",
    "ui_message_version": 4,
    "ui_message_webview_url_scheme": "<string>",
    "update_credentials": false
  }
}
'

import requests

url = "https://int-api.mx.com/users/{user_guid}/connect_widget_url"

payload = { "config": {
        "client_redirect_url": "https://{yoursite.com}",
        "color_scheme": "light",
        "current_institution_code": "mxbank",
        "current_member_guid": "MBR-7c6f361b-e582-15b6-60c0-358f12466b4b",
        "disable_background_agg": False,
        "disable_institution_search": False,
        "enable_app2app": False,
        "include_identity": False,
        "include_transactions": True,
        "is_mobile_webview": False,
        "mode": "aggregation",
        "oauth_referral_source": "BROWSER",
        "ui_message_version": 4,
        "ui_message_webview_url_scheme": "<string>",
        "update_credentials": False
    } }
headers = {
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Basic <encoded-value>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    config: {
      client_redirect_url: 'https://{yoursite.com}',
      color_scheme: 'light',
      current_institution_code: 'mxbank',
      current_member_guid: 'MBR-7c6f361b-e582-15b6-60c0-358f12466b4b',
      disable_background_agg: false,
      disable_institution_search: false,
      enable_app2app: false,
      include_identity: false,
      include_transactions: true,
      is_mobile_webview: false,
      mode: 'aggregation',
      oauth_referral_source: 'BROWSER',
      ui_message_version: 4,
      ui_message_webview_url_scheme: '<string>',
      update_credentials: false
    }
  })
};

fetch('https://int-api.mx.com/users/{user_guid}/connect_widget_url', 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://int-api.mx.com/users/{user_guid}/connect_widget_url",
  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([
    'config' => [
        'client_redirect_url' => 'https://{yoursite.com}',
        'color_scheme' => 'light',
        'current_institution_code' => 'mxbank',
        'current_member_guid' => 'MBR-7c6f361b-e582-15b6-60c0-358f12466b4b',
        'disable_background_agg' => false,
        'disable_institution_search' => false,
        'enable_app2app' => false,
        'include_identity' => false,
        'include_transactions' => true,
        'is_mobile_webview' => false,
        'mode' => 'aggregation',
        'oauth_referral_source' => 'BROWSER',
        'ui_message_version' => 4,
        'ui_message_webview_url_scheme' => '<string>',
        'update_credentials' => false
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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://int-api.mx.com/users/{user_guid}/connect_widget_url"

	payload := strings.NewReader("{\n  \"config\": {\n    \"client_redirect_url\": \"https://{yoursite.com}\",\n    \"color_scheme\": \"light\",\n    \"current_institution_code\": \"mxbank\",\n    \"current_member_guid\": \"MBR-7c6f361b-e582-15b6-60c0-358f12466b4b\",\n    \"disable_background_agg\": false,\n    \"disable_institution_search\": false,\n    \"enable_app2app\": false,\n    \"include_identity\": false,\n    \"include_transactions\": true,\n    \"is_mobile_webview\": false,\n    \"mode\": \"aggregation\",\n    \"oauth_referral_source\": \"BROWSER\",\n    \"ui_message_version\": 4,\n    \"ui_message_webview_url_scheme\": \"<string>\",\n    \"update_credentials\": false\n  }\n}")

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

	req.Header.Add("Authorization", "Basic <encoded-value>")
	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://int-api.mx.com/users/{user_guid}/connect_widget_url")
  .header("Authorization", "Basic <encoded-value>")
  .header("Content-Type", "application/json")
  .body("{\n  \"config\": {\n    \"client_redirect_url\": \"https://{yoursite.com}\",\n    \"color_scheme\": \"light\",\n    \"current_institution_code\": \"mxbank\",\n    \"current_member_guid\": \"MBR-7c6f361b-e582-15b6-60c0-358f12466b4b\",\n    \"disable_background_agg\": false,\n    \"disable_institution_search\": false,\n    \"enable_app2app\": false,\n    \"include_identity\": false,\n    \"include_transactions\": true,\n    \"is_mobile_webview\": false,\n    \"mode\": \"aggregation\",\n    \"oauth_referral_source\": \"BROWSER\",\n    \"ui_message_version\": 4,\n    \"ui_message_webview_url_scheme\": \"<string>\",\n    \"update_credentials\": false\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://int-api.mx.com/users/{user_guid}/connect_widget_url")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Basic <encoded-value>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"config\": {\n    \"client_redirect_url\": \"https://{yoursite.com}\",\n    \"color_scheme\": \"light\",\n    \"current_institution_code\": \"mxbank\",\n    \"current_member_guid\": \"MBR-7c6f361b-e582-15b6-60c0-358f12466b4b\",\n    \"disable_background_agg\": false,\n    \"disable_institution_search\": false,\n    \"enable_app2app\": false,\n    \"include_identity\": false,\n    \"include_transactions\": true,\n    \"is_mobile_webview\": false,\n    \"mode\": \"aggregation\",\n    \"oauth_referral_source\": \"BROWSER\",\n    \"ui_message_version\": 4,\n    \"ui_message_webview_url_scheme\": \"<string>\",\n    \"update_credentials\": false\n  }\n}"

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

{
  "user": {
    "connect_widget_url": "https://int-widgets.moneydesktop.com/md/connect/jb1rA14m85tw2lyvpgfx4gc6d3Z8z8Ayb8",
    "guid": "USR-fa7537f3-48aa-a683-a02a-b18940482f54"
  }
}