For more information about this gateway, please refer to https://epayments-api.developer-ingenico.com/s2sapi/v1/en_US/java/concepts.html?paymentPlatform=ALL

To add an Ingenico ePayments gateway (formerly Global Collect), use the following settings:

{
    "merchant_id" : "Your Merchant ID",
    "api_key_id" : "Your API Key ID",
    "secret_api_key" : "Your Secret API Key"
}