For AI agents: the complete documentation index is at /llms.txt, and the full text of every page is at /llms-full.txt. Most pages are also available as Markdown by adding .md to the URL.

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Welcome to the Heartland Developer Documentation

Supporting existing Heartland integrations within the Global Payments developer experience.

Existing customers: Get your sandbox and production credentials for Heartland/Portico integration.

The Heartland Developer Portal lives within the Global Payments developer experience and continues to support customers using Heartland solutions today.

Here you will find the documentation, SDKs, and tools you need to work with existing Heartland integrations. If you are exploring new projects or additional solutions, you can also discover other options available across Global Payments.

Who is this for?

You are in the right spot if you:

Work with a solution that already uses Heartland.
Need technical documentation or SDKs for an existing Heartland integration.
Want to keep your current Heartland integration running smoothly while you plan your broader roadmap.

If you are planning something entirely new, you may also want to explore the REST API

Online and In-Store Payments

Find Heartland docs for secure online checkouts and card-present POS integrations in one place

Heartland SDKs and Tools

Access SDKs, sample code, and testing tools that support your existing integrations

Heartland Resources

Need help with your integration? explore our resource center

Support for existing Heartland integrations

Heartland integrations continue to be supported for customers who rely on them.
This area is focused on helping you maintain your existing solutions.
In parallel we are investing in a broader Global Payments developer experience, giving you more options as your needs evolve.