First Data Global Gateway e4℠
Webservice API

Webservice API allows the merchant and/or third-party applications to process transactions through the gateway via a secure SSL encrypted session.

Global Gateway e4℠ Webservice API gives merchants complete control over how their payments are processed, and allows them to build transaction processing applications that can process payments from a web site or from multiple point-of-sale terminals. Ideal for either e-commerce or large-scale retail situations, Webservice API uses Secure Sockets Layer (SSL) technology to encrypt and pass confidential transaction and order information directly to CardConnect.

Features & Benefits:

• Service to connect the gateway directly with your web application for a seamless customer experience
• Enables a range of processing scenarios for flexibility in implementing custom business logic
• Helps you gain platform independence; offers ease of integration and transaction security
• Web Service API HMAC Hash: a Web Service API transaction key can be utilized to assist merchants in building an HMAC (Hash-based Message Authentication Code)