Merchant Identifier API V2

mastercard · Company

Company No Auth Free & Open API

API for Merchant Identifier

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET Returns merchant descriptor and locator information based on the criteria you provide. Information returned includes merchant DBA name, merchant category code (MCC), street address, city, state, postal code, country, and sales channels.

Returns merchant descriptor and locator information based on the criteria you provide. Information returned includes merchant DBA name, merchant category code (MCC), street address, city, state, postal code, country, and sales channels.

https://api.apis.guru/v2/specs/mastercard.com/MerchantIdentifier/2.0.0/merchant-ids?type=ExactMatch&merchant_id=

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/mastercard.com/MerchantIdentifier/2.0.0/merchant-ids?type=ExactMatch&merchant_id="

import requests
params = {
    "type": "ExactMatch",
    "merchant_id": ""
}
response = requests.get(
    "https://api.apis.guru/v2/specs/mastercard.com/MerchantIdentifier/2.0.0/merchant-ids",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/mastercard.com/MerchantIdentifier/2.0.0/merchant-ids');
url.searchParams.set('type', 'ExactMatch');
url.searchParams.set('merchant_id', '');

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

package main

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

func main() {
	baseURL, _ := url.Parse("https://api.apis.guru/v2/specs/mastercard.com/MerchantIdentifier/2.0.0/merchant-ids")
	q := baseURL.Query()
	q.Set("type", "ExactMatch")
	q.Set("merchant_id", "")
	baseURL.RawQuery = q.Encode()
	targetURL := baseURL.String()
	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/MerchantIdentifier/2.0.0/merchant-ids")
uri.query = URI.encode_www_form({
  "type" => "ExactMatch",
  "merchant_id" => ""
})

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/MerchantIdentifier/2.0.0/merchant-ids?" . http_build_query([
    "type" => "ExactMatch",
    "merchant_id" => ""
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($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 Merchant Identifier API V2?

Merchant Identifier API V2 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. Merchant Identifier API V2 is free to use, making it a low-risk choice to experiment with.

New to APIs? Read our beginner's guide · Learn about API keys · What is REST?

Open documentation ↗