Accounting software and services company Xero has signed up payments gateway provider Stripe to establish an online Apple Pay service for its customers.Xero said in a statement that its 862,000 subscribers could offer their customers the option of viewing and paying an invoice using Apple Pay.The customer would need to be a customer of a bank offering Apple Pay and would have to have the application set up.They will be presented with the option of confirming payment with TouchID on Xero invoices, with Stripe as the payment gateway. In this way Xero is attaching a payment option to its subscribers' online invoices that does not require the input of payment card details.