# POS Integration

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.

In-Person Payments API Diagram
View our [available devices](/guides/in-person-payments/select-your-device) to compare PAX terminals supported for POS integrations.

Finix supports three PAX terminals for POS integrations:

1. PAX A800
2. PAX A920 Pro
3. PAX IM30


## Learn more

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.