10 Top Billing APIs

There was a time when billing customers was a cut and dry situation. A monthly statement was sent to a customer via snail-mail, and a check was written and shipped back to the payee. But like other industries, the billing industry has undergone a Digital Transformation.

Billing statements and payments are now often paperless, and customers have more choices on how to pay. Consumers can use billers' own websites as well as their own online banks to facilitate payments, or mobile payments and digital payment services such as PayPay, Venmo, Apple Pay, Zelle, Google Pay, Cash App, and the like. Additionally billers have more options on how to bill, including recurring or subscription services, automated real-time payment collecting, and encouraging their own payment service rather than credit cards (which require merchants fees).

With all of that to consider, developers wanting to add billing services to applications have a lot to think about. Billing APIs can help.

What is a Billing API?

A Billing API is an Application Programming Interface that developers can use to integrate billing services into their own applications.

The most convenient place to find these APIs is in the Billing category of the ProgrammableWeb directory. In this article, we highlight the ten most popular Billing APIs as determined by website views on ProgrammableWeb.

1. Stripe API

With the Stripe application, users can keep track of payments, search past payments, create recurring charges, and keep track of customers. The Stripe APITrack this API allows developers to access the functionality of Stripe. Some example API methods include sending invoices, accepting payments, managing subscription billing, and editing and managing account information.

2. Recurly API

Recurly is a subscription billing and recurring billing Platform. The Recurly APITrack this API enables online businesses to programmatically access the platform, and to integrate recurring billing features including adjustments, invoices, plans, and subscriptions into their own applications.

3. Endless Medical API

EndlessMedical is a free API that uses Artificial Intelligence and Machine Learning to provide diagnostic information. The EndlessMedical APITrack this API connects a user's symptoms and complaints, with test results and doctor's examination. It provides a list of possible diagnoses, incorporates test results and findings of physical examinations. The API generates Documentation and billing suggestions for US-based physicians.

4. Shopify Billing API

Shopify provides online and in-store merchant services.The Shopify Billing APITrack this API is a component of the Shopify Admin API, which enables developers to build eCommerce solutions. The Shopify Billing API provides a way to get paid for your application by billing for a one-time charge, a fixed monthly fee, or a variable monthly fee based on customer usage.

5. Splitwise API

Splitwise is a bill splitting and IOU tracking web application built to make it easy to split bills with family and friends. The Splitwise API exposes its backend, allowing applications to access and manipulate data types such as currencies, users, groups, expenses, and friends.

Splitwise makes sharing expenses easy

Splitwise makes billing for sharing expenses easy. Image: Splitwise

6. Dinero API

Dinero is an accounting platform for businesses. The Dinero APITrack this API allows Integration of the platform and programmatic control including tax computation, billing, and cloud sharing for documents. The firm is from Denmark and the website is in Danish.

7. Paystack API

Paystack is an online payments platform that allows users to accept one-time and recurring payments online and via mobile. Their Stack of product features includes payments, subscriptions, dashboard, fraud prevention, developer tools, and eventually invoicing. The Paystack REST APITrack this API allows developers to manage customers, payments and transactions.

8. instantPay API

instantPay.in is a digital banking platform based in India which offers an easy to integrate APITrack this API. The instantPay API offers methods for payouts, collections (billing), cards, financial inclusion, utility payments, travel services, top up, data services and more.

9. PayPal Subscriptions API

PayPal offers ecommerce and online payment solutions for millions of customers globally. The PayPal Subscriptions APITrack this API provides programmatic access to create subscriptions that process recurring PayPal payments for physical, digital goods or services. It allows developers to create a plan, list plans, update a subscription, and more.

10. Heartland Payment Systems API

Heartland provides payment solutions for payroll, gift cards, point of sale, mobile payments, schools and more. Heartland Payment Systems APITrack this API allows developers to integrate the SecureSubmit payments and billing functionalities into Web services for industries such as restaurants, mobile ordering, education, retail, and more.

Check out the Billing category for 180+ APIs, 200 SDKs, and Source Code samples.

Be sure to read the next Billing article: Google Ushers in V4 of the Campaign Manager 360 API