💳 LQPOS Helper CC Simulator
PAX S300 · simulated ← nvai.dev portal

Card Reader Simulator

A PAX S300-style virtual terminal for exercising a POS integration. Pick a response scenario, enter an amount, and send the request — the reader screen, API response and transaction log all update as they would on hardware. Nothing leaves the browser.

PAX S300 · Lane 1
POUDRE LIQUORS--:--
$0.00
READY
INSERT · TAP · SWIPE
NO CARD PRESENT
⌅  CONTACTLESS · CHIP · SWIPE

Use the keypad to type an amount, then press ENTER to run the transaction.

Test Scenario

API Inspector

Request · POST /v1/payments
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Response
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Transaction Log