Welcome to the Fiserv developer documentation, this section will give you an overview of what's on offer! We provide solutions which cover the full spectrum of payments, enabled by our range of APIs.

Our payments solutions enable you to accept your customers' preferred payment methods (for a full list see here) in a variety of different ways from seamless hosted page integration, to fully customizable APIs.

The documentation in this area is mostly broken down by either the technical interface (such as an API, SDK or web component) and the features. If you're new to us, or to payments in general, we really recommend making a note of our General Concepts page.

This page gives an overview of the different options and which one might be most appropriate for your use case.

Other Payment Solutions

We also support a few other ways of integrating, such as:

• Hosted Payment Page - also known as 'Connect' this is the pre-existing version of Checkout, existing customers are likely to go here
• SOAP API - Actual SOAP API Integration guide version in pdf format available for download
• Nexo Acquirer API - ISO20022-based payment interface based on global NEXO standard
• Virtual Terminal - User interface to initiate specific payment transactions, perform secondary transactions such as reversals or pre-authorization completions and look up basic transactional data
• Checkout Solution - easy, quick and secure way for you to start accepting payments online combined with checkout builder to customize your payment page