Adyen

Adyen is a global payments platform trusted by enterprise merchants. Cartly integrates Adyen with the Checkout Sessions flow and the Web Drop-in: the buyer's card details are collected by Adyen's PCI-compliant component (never touching your store), 3D Secure is handled automatically, and the order is captured and confirmed via an HMAC-signed webhook.

## Features

- Card payments (Visa, Mastercard, Amex, and more) via the Adyen Web Drop-in

- Automatic 3D Secure 2 — no redirect handling on your side

- Immediate capture at checkout (account default)

- Full and partial refunds, plus reversal of an uncaptured authorization

- HMAC-signed webhooks + a reconcile safety net (no lost orders)

## Supported Currencies

USD, EUR, GBP, AUD, CAD, CHF, NZD, DKK, NOK, SEK, PLN, CZK, RON, BGN, SGD, HKD, AED, SAR, ILS, MXN, BRL, ZAR, JPY, KRW, VND, KWD, BHD, JOD, OMR, TND, HUF, ISK

## Setup

1. In your Adyen Customer Area (ca-test.adyen.com to trial), create an API credential: copy the API key (X-API-Key) and the Client key. Add every storefront domain that renders checkout to the Client key's Allowed origins.

2. Note your Merchant account name.

3. In Developers → Webhooks, add a Standard webhook pointing to the webhook URL shown in Settings → Payments → Adyen, then Generate an HMAC key and copy it.

4. In Settings → Payments → Adyen, enter the API key, Client key, Merchant account and HMAC key, then click Test connection.