MDES Customer Service

mastercard · Company

Company No Auth Free & Open API

This API provides our Issuer partners with resources to help resolve consumer queries about payment accounts enabled through our digitization platform.

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET GET /systemstatus

Returns the overall system status of the Mastercard Digital Enablement Service.

https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/systemstatus

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/systemstatus"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/systemstatus",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/systemstatus';

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	targetURL := "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/systemstatus"
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/systemstatus")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/systemstatus";
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

POST POST /accountholdermessaging

Allows issuers to display customized messages per token within the Apple Pay wallet, below the digitized image of the card.

https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/accountholdermessaging

Hover any highlighted part to learn what it does

curl -X POST "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/accountholdermessaging"

import requests
response = requests.post(
    "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/accountholdermessaging",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/accountholdermessaging';

const response = await fetch(url, {
  method: 'POST',
}); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	targetURL := "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/accountholdermessaging"
	req, _ := http.NewRequest("POST", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/accountholdermessaging")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Post.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/accountholdermessaging";
$opts = ["http" => [
    "method" => "POST",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

POST POST /search

Provides the ability to search for tokens based on Account PAN, Alternate Account Identifier, Token Unique Reference, Token, Payment App Instance Id or Comment Id. Returns all of the tokens associated with an account according to the scope of the indicated search request criteria. The response inclu

https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/search

Hover any highlighted part to learn what it does

curl -X POST "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/search"

import requests
response = requests.post(
    "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/search",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/search';

const response = await fetch(url, {
  method: 'POST',
}); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	targetURL := "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/search"
	req, _ := http.NewRequest("POST", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/search")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Post.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/mastercard.com/MDES/2.0.7/search";
$opts = ["http" => [
    "method" => "POST",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

Postman Setup Guide

Get Postman ↗

See official documentation for authentication and setup.

What can you build with MDES Customer Service?

MDES Customer Service is a Company API. Developers commonly use company APIs for:

enriching CRM records with company firmographics
building lead-generation and prospecting tools
verifying business identity and registration details
monitoring competitors and market intelligence
powering B2B data enrichment pipelines

No authentication required. This API is open — no signup or key needed. Ideal for quick prototypes and public-facing features. MDES Customer Service is free to use, making it a low-risk choice to experiment with.

New to APIs? Read our beginner's guide

Open documentation ↗