HI,
I am developing a website in php from where I will receive order details and I will contact the client by phone, then I will create the invoice from methodCRM, but I want client to pay there invoices on the website, also they can see a list of paid/unpaid invoices, for this purpose I will also need the list of users, so I can I achieve this with methodCRM API? If then Can you please share an example[in any language]?