curl --request GET \
  --url https://api.finseed.es/v1/invoices \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.finseed.es/v1/invoices"

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

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

print(response.text)

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

fetch('https://api.finseed.es/v1/invoices', 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.finseed.es/v1/invoices",
  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://api.finseed.es/v1/invoices"

	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://api.finseed.es/v1/invoices")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.finseed.es/v1/invoices")

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

{
  "data": [
    {
      "id": "inv_clx123abc456",
      "status": "issued",
      "number": "2026-000123",
      "currency": "eur",
      "subtotal": 8300,
      "tax": 1743,
      "total": 10043,
      "recipient_name": "ACME, S.L.",
      "recipient_tax_id": "B12345678",
      "email": "[email protected]",
      "external_customer_id": "cus_9aZ",
      "external_id": "order-84312",
      "invoice_date": "2026-06-01T09:30:00Z",
      "operation_date": "2026-06-01T09:30:00Z",
      "created_at": "2026-06-01T09:30:00Z",
      "type": "complete",
      "number_series_id": "ns_clx456def789",
      "recipient": {
        "name": "ACME, S.L.",
        "company_name": null,
        "tax_id": "B12345678",
        "tax_id_type": "es_nif",
        "tax_id_country": "ES",
        "email": "[email protected]",
        "address": {
          "line1": "Calle Mayor 1",
          "line2": null,
          "postal_code": "28001",
          "city": "Madrid",
          "country": "ES"
        }
      },
      "pdf_url": "https://api.finseed.es/v1/invoices/inv_clx123abc456/file?token=abc",
      "issuing_system": "verifactu",
      "verifactu": {
        "status": "registered",
        "hash": "B11F3A0151ADA655A9A0A4A64F32F440BE0EE0F5A695BB2E4DC5C0C0AF6E8D2A",
        "qr_url": "https://www2.agenciatributaria.gob.es/wlpl/TIKE-CONT/ValidarQR?nif=B12345678&numserie=2026-000123&fecha=01-06-2026&importe=100.43",
        "error": null
      },
      "line_items": [
        {
          "id": "ili_clx789def012",
          "description": "Consulting services",
          "sku": "SVC-01",
          "quantity": 2,
          "unit_amount": 4150,
          "subtotal": 8300,
          "tax": 1743,
          "total": 10043,
          "tax_items": [
            {
              "name": "IVA 21%",
              "type": "vat",
              "rate": 21,
              "amount": 1743
            }
          ]
        }
      ],
      "kind": "original",
      "rectifies": [],
      "rectified_by": []
    }
  ],
  "has_more": true,
  "next_cursor": "inv_clx123abc456",
  "next_url": "/v1/invoices?limit=25&starting_after=inv_clx123abc456"
}

{
  "code": "invalid_request",
  "detail": "The request is not valid. A parameter is missing, malformed, or out of range. See the `errors` array for the fields that failed.",
  "errors": [],
  "doc_url": "https://www.finseed.es/docs/api-reference/errors#invalid_request"
}

{
  "code": "unauthorized",
  "detail": "Authentication failed. Send your API key as a bearer token in the `Authorization` header. Keys are scoped to one environment, so a test key cannot read live data and vice versa.",
  "errors": [],
  "doc_url": "https://www.finseed.es/docs/api-reference/errors#unauthorized"
}

{
  "code": "internal_error",
  "detail": "Something went wrong on our side. The request did not complete and can be retried safely.",
  "errors": [],
  "doc_url": "https://www.finseed.es/docs/api-reference/errors#internal_error"
}