List of invoices and receipt-related APIs.
Companies doing business with freelance employees or customers often need to generate invoices for payments received or rendered.
While these invoices were traditionally created by hand, and more recently with local computer software, companies today benefit from the ability to generate and deliver invoices using web-based systems that integrate with other business software to simplify the process of paying employees and receiving money from customers.
APIs are tools that connect apps and other software (“clients”) with existing services (“servers”).
Typical functions in this kind of API include the ability to create, update and deliver invoices, to add items and contacts to invoices and many other things. In short, anything an app might need to to send someone a notice that payment is due can be handled with an API.
An invoice API provides developers with access to an existing invoicing service online.
Although the specific details vary depending on the API and language used, the client program will send a request to the server through a properly formatted URL. The server will complete the request and return data to the client for use locally.
Developers creating apps or other software that will let users send or receive invoices will benefit from an invoice API.
As the maxim goes, “don’t reinvent the wheel.”
Although any developer could theoretically build an invoicing system from scratch, that’s time that could be better spent on more important aspects of a new app. Using an API instead allows developers to save time and effort while still providing robust services to their users.
Unlike some other API types, invoices are almost always tied to a specific service. To take full advantage of them, developers must either select a specific service and use it for payments as well as invoicing.
Alternatively, developers can connect their apps to multiple popular services, such as PayPal, Stripe and Square, ensuring that users are able to send and receive invoices in the service they already use.
Invoicing services often require payment to access, but the APIs they offer are usually free to use.
All Invoice APIs are supported and made available in multiple developer programming languages and SDKs including:
Just select your preference from any API endpoints page.
Sign up today for free on RapidAPI to begin using Invoice APIs!