Billingo API v3

billingo · Finance

Finance No Auth Free & Open financial

This is a Billingo API v3 documentation. Our API based on REST software architectural style. API has resource-oriented URLs, accepts JSON-encoded request bodies and returns JSON-encoded responses. To use this API you have to generate a new API key on our [site](https://app.billingo.hu/api-key). After that, you can test your API key on this page.

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET List all bank account

Returns a list of your bank accounts. The bank accounts are returned sorted by creation date, with the most recent bank account appearing first.

https://api.apis.guru/v2/specs/billingo.hu/3.0.7/bank-accounts?page=1&per_page=25

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/billingo.hu/3.0.7/bank-accounts?page=1&per_page=25"

import requests
params = {
    "page": "1",
    "per_page": "25"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/billingo.hu/3.0.7/bank-accounts",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/billingo.hu/3.0.7/bank-accounts');
url.searchParams.set('page', '1');
url.searchParams.set('per_page', '25');

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/billingo.hu/3.0.7/bank-accounts")
	q := baseURL.Query()
	q.Set("page", "1")
	q.Set("per_page", "25")
	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/billingo.hu/3.0.7/bank-accounts")
uri.query = URI.encode_www_form({
  "page" => "1",
  "per_page" => "25"
})

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/billingo.hu/3.0.7/bank-accounts?" . http_build_query([
    "page" => "1",
    "per_page" => "25"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET Get currencies exchange rate.

Return with the exchange value of given currencies.

https://api.apis.guru/v2/specs/billingo.hu/3.0.7/currencies?to=2024-12-31&from=2024-01-01

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/billingo.hu/3.0.7/currencies?to=2024-12-31&from=2024-01-01"

import requests
params = {
    "to": "2024-12-31",
    "from": "2024-01-01"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/billingo.hu/3.0.7/currencies",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/billingo.hu/3.0.7/currencies');
url.searchParams.set('to', '2024-12-31');
url.searchParams.set('from', '2024-01-01');

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/billingo.hu/3.0.7/currencies")
	q := baseURL.Query()
	q.Set("to", "2024-12-31")
	q.Set("from", "2024-01-01")
	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/billingo.hu/3.0.7/currencies")
uri.query = URI.encode_www_form({
  "to" => "2024-12-31",
  "from" => "2024-01-01"
})

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/billingo.hu/3.0.7/currencies?" . http_build_query([
    "to" => "2024-12-31",
    "from" => "2024-01-01"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET List all document blocks

Returns a list of your document blocks. The document blocks are returned sorted by creation date, with the most recent document blocks appearing first.

https://api.apis.guru/v2/specs/billingo.hu/3.0.7/document-blocks?page=1&per_page=25

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/billingo.hu/3.0.7/document-blocks?page=1&per_page=25"

import requests
params = {
    "page": "1",
    "per_page": "25"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/billingo.hu/3.0.7/document-blocks",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/billingo.hu/3.0.7/document-blocks');
url.searchParams.set('page', '1');
url.searchParams.set('per_page', '25');

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/billingo.hu/3.0.7/document-blocks")
	q := baseURL.Query()
	q.Set("page", "1")
	q.Set("per_page", "25")
	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/billingo.hu/3.0.7/document-blocks")
uri.query = URI.encode_www_form({
  "page" => "1",
  "per_page" => "25"
})

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/billingo.hu/3.0.7/document-blocks?" . http_build_query([
    "page" => "1",
    "per_page" => "25"
]);
$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 Billingo API v3?

Billingo API v3 is a Finance API. Developers commonly use finance APIs for:

processing payments and handling transactions
building subscription and billing systems
automating invoicing and financial reporting
fraud detection and risk scoring
connecting to banking and accounting software

No authentication required. This API is open — no signup or key needed. Ideal for quick prototypes and public-facing features. Billingo API v3 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 ↗