curl --request GET \
  --url https://api.closedloop.sh/v1/customers \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://api.closedloop.sh/v1/customers"

headers = {"X-API-Key": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};

fetch('https://api.closedloop.sh/v1/customers', 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://api.closedloop.sh/v1/customers",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-API-Key: <api-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"
	"net/http"
	"io"
)

func main() {

	url := "https://api.closedloop.sh/v1/customers"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-API-Key", "<api-key>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.closedloop.sh/v1/customers")
  .header("X-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.closedloop.sh/v1/customers")

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

request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<api-key>'

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

{
  "data": [
    {
      "id": "c0ffee00-0000-4000-8000-000000000001",
      "name": "Acme Co",
      "parent_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "parent_name": "<string>",
      "domain": "acme.example",
      "industry": "Software",
      "employee_count": 250,
      "arr": 48000,
      "currency": "USD",
      "is_active_customer": true,
      "is_paying": true,
      "churn_state": "active",
      "insight_count": 23,
      "last_seen": "2026-06-10T09:00:00Z",
      "external_ids": [
        {
          "integration_id": "1e7e6600-0000-4000-8000-000000000001",
          "source": "salesforce",
          "external_id": "001A000001AbCdEAAZ"
        }
      ],
      "parents": [
        {
          "id": "c0ffee00-0000-4000-8000-000000000002",
          "name": "Acme Group",
          "source": "salesforce",
          "external_id": "001A000001AbCdFAAZ"
        }
      ],
      "family": {
        "id": "fa111e00-0000-4000-8000-000000000001",
        "name": "Acme",
        "is_grouped": true,
        "member_count": 3,
        "members": [
          {
            "id": "c0ffee00-0000-4000-8000-000000000003",
            "name": "Acme Germany",
            "external_ids": [
              {
                "integration_id": "1e7e6600-0000-4000-8000-000000000001",
                "source": "salesforce",
                "external_id": "001A000001AbCdEAAZ"
              }
            ],
            "domain": "acme.com"
          }
        ]
      }
    }
  ],
  "pagination": {
    "total": 508,
    "limit": 50,
    "offset": 0
  }
}

{
  "error": "API key authentication is temporarily unavailable. Please retry shortly.",
  "code": "API_KEY_AUTH_UNAVAILABLE"
}