curl --request GET \
  --url https://api.numeralhq.com/tax/certificates \
  --header 'Authorization: Bearer <token>' \
  --header 'X-API-Version: <x-api-version>'

import requests

url = "https://api.numeralhq.com/tax/certificates"

headers = {
    "X-API-Version": "<x-api-version>",
    "Authorization": "Bearer <token>"
}

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

print(response.text)

const options = {
  method: 'GET',
  headers: {'X-API-Version': '<x-api-version>', Authorization: 'Bearer <token>'}
};

fetch('https://api.numeralhq.com/tax/certificates', 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.numeralhq.com/tax/certificates",
  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>",
    "X-API-Version: <x-api-version>"
  ],
]);

$response = curl_exec($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.numeralhq.com/tax/certificates"

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

	req.Header.Add("X-API-Version", "<x-api-version>")
	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://api.numeralhq.com/tax/certificates")
  .header("X-API-Version", "<x-api-version>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.numeralhq.com/tax/certificates")

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

request = Net::HTTP::Get.new(url)
request["X-API-Version"] = '<x-api-version>'
request["Authorization"] = 'Bearer <token>'

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

{
  "object": "list",
  "certificates": [
    {
      "id": "cert_a8f3d2c1-1b9a-4c5e-8d7e-6f4a3b2c1d0e",
      "object": "tax.exemption_certificate",
      "status": "active",
      "certificate_type": {
        "id": "12",
        "name": "California Resale Certificate (CDTFA-230)",
        "certificate_identifier": "US-CA-CDTFA-230"
      },
      "customer": {
        "id": "cust_6126acaf-7379-411a-8ada-00005bac0715",
        "reference_customer_id": "20506"
      },
      "jurisdictions": [
        {
          "jurisdiction_id": "US-CA",
          "status": "active",
          "effective_date": "2026-01-01",
          "expiration_date": "2027-01-01"
        }
      ],
      "effective_date": "2026-01-01",
      "expiration_date": "2027-01-01",
      "created_at": "2026-03-01T12:00:00Z",
      "updated_at": "2026-03-01T12:00:00Z",
      "livemode": true
    }
  ],
  "has_more": false
}

{
  "code": 400,
  "type": "MISSING_FIELD",
  "message": "Required field 'address_country' is missing"
}