Set Up EPOS
EPOS integration enables a Point of Sale system to send payment commands to the terminal over a local network using REST API. The terminal receives the command and displays the payment screen for the customer to complete the transaction—typically in a customer-facing setup.
This mode suits merchants with more complex environments, allowing the terminal to interact with external systems like order management platforms or POS devices.
This guide helps you integrate a PAX terminal with the Paynt POS app into your Point of Sale device and complete your first EPOS transaction.
What You'll Need
To get started, you need:
- A terminal with the Paynt POS App
- A local network or internet with static IP
- A Postman/test application and/or your own EPOS app
Steps
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Set up EPOS networks – Configure local and external network connectivity. Get started here.
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Implement EPOS - Integrate the EPOS transaction flows that are relevant for your business needs. Get started here.
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Perform integration testing – Test your EPOS integration on local and external networks. Get started here.
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Test and certify – Complete certification testing to validate your integration. Get started here.
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Go live – Deploy your integration to production. Get started here.
Useful Resources
Before you get started, check out the following resources:
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Postman Collection – All supported POS Payment App requests.
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EPOS API Documentation – Comprehensive details on request parameters, response formats, and error codes.
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Test Application – Sample application for EPOS integration testing.