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Heartland SDKs & APIs


Documentation and code samples for using the Heartland SDK set which wraps PAX, Heartland Payment Application (HPA) and Secure Submit for card not present.

SOAP/XML API with multi-region access capability featuring credit, debit, eCheck/ACH, gift, rewards, EMV, E3 Encryption, tokenization, and more.

The Heartland host message spececification and core payment switch

Powerful API for Billers, with comprehensive convenience fee handling.

The Heartland Payroll API is designed to transform your applications basic time tracking into a complete payroll system.

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