Finix's POS integration connects your point-of-sale system to PAX payment terminals through the Finix API. You initiate sales, check device status, and cancel transactions entirely through API calls. No proprietary POS software is required.
View our available devices to compare PAX terminals supported for POS integrations.
Finix supports three PAX terminals for POS integrations:
- PAX A800
- PAX A920 Pro
- PAX IM30
POS Quickstart
Set up your payment terminal and process your first transaction in three steps.
Sending Receipts
Print or email card-network-compliant receipts after a payment.
Testing Your Integration
Learn how to test your in-person payments integration.
Device API Reference
Explore the Devices endpoints for activating, updating, and monitoring terminals.