Universal ClanPay API integration

i dont know if this right forum but i try..
Anyway, i got something called clanpay api with a whole wall of text such as:
Returns JSON data:
result_code Either SUCCESS or ERROR
result_msg Extra data associated with result_code
clan Name of the clan (OPTIONAL)
account Name of the account (OPTIONAL)
balance Amount due in USD. A negative balance indicates a credit - no payment is due. (OPTIONAL)
payment_link Link to the gameservers.com page where payments can be made.
services List of services for this account. (OPTIONAL)
link Link to the gameservers.com page for this service. (OPTIONAL)
name Name of this service.
description Description of this service. (OPTIONAL)
price Price of this service. (OPTIONAL)

but how do i add this as a plugin,API or something?.... i did try to add my clanpay link to web url in server description but that link sends myself to the donation site while when others click on it, it sends them to their rust folder on the pc instead...