curl --request GET \
  --url https://api2.endstate.io/v1/units \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api2.endstate.io/v1/units"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api2.endstate.io/v1/units', 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://api2.endstate.io/v1/units",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($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://api2.endstate.io/v1/units"

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api2.endstate.io/v1/units")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api2.endstate.io/v1/units")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

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

{
  "units": [
    {
      "id": "33333333-3333-3333-3333-333333333333",
      "external_id": "unit-001",
      "name": "Example Unit",
      "description": null,
      "attributes": {
        "custom_attribute": "value"
      },
      "created_at": "2026-05-16T12:00:00.000Z",
      "redirect_url": null,
      "collection": {
        "id": "8e1a7f50-90ab-4cde-8012-3456789abcde",
        "name": "Example Collection",
        "external_id": "collection-001",
        "contract": {
          "address": "0x1111111111111111111111111111111111111111",
          "chain_id": 84532,
          "status": "active"
        },
        "token": {
          "status": "active",
          "serial": 5
        }
      },
      "chips": [
        {
          "chip_id": "ABCDEF0123",
          "is_test": false,
          "scan_count": 0,
          "created_at": "2026-05-16T12:00:00.000Z"
        }
      ]
    }
  ],
  "pagination": {
    "limit": 50,
    "has_more": false,
    "next_cursor": null
  }
}

{
  "error": {
    "code": "validation.failed",
    "message": "The request failed schema validation. See `error.details` for per-field issues.",
    "request_id": "req_8e1a7f50-90ab-4cde-f012-3456789abcde",
    "doc_url": "https://docs.endstate.io/errors/validation-failed"
  }
}

{
  "error": {
    "code": "auth.unauthorized",
    "message": "Credential is missing or malformed.",
    "request_id": "req_8e1a7f50-90ab-4cde-f012-3456789abcde",
    "doc_url": "https://docs.endstate.io/errors/auth-unauthorized"
  }
}

{
  "error": {
    "code": "auth.forbidden",
    "message": "Credential is valid but does not have access to the requested resource or action.",
    "request_id": "req_8e1a7f50-90ab-4cde-f012-3456789abcde",
    "doc_url": "https://docs.endstate.io/errors/auth-forbidden"
  }
}

{
  "error": {
    "code": "rate_limit.exceeded",
    "message": "Per-key rate limit exceeded.",
    "request_id": "req_8e1a7f50-90ab-4cde-f012-3456789abcde",
    "doc_url": "https://docs.endstate.io/errors/rate-limit-exceeded"
  }
}

{
  "error": {
    "code": "internal.error",
    "message": "An unexpected server error occurred. Retry with exponential backoff and include `request_id` in any support request.",
    "request_id": "req_8e1a7f50-90ab-4cde-f012-3456789abcde",
    "doc_url": "https://docs.endstate.io/errors/internal-error"
  }
}