New payment module


I’m trying to make a payment module for our region
I send the payment using the form
"“json-rpc”: “2.0”,
“id”: 78805,
"“method”: “Check PerformTransaction”,
“params”: {
“amount”: 25000000,
“account”: {
“order_id”: “13”,
“full_name”: “Avtor2 Test2”,
“phone_number”: “99999999999”,
“transaction_param”: “Publication Fee: 13”
“currency”: 860

I need to specify the Endpoint API in the payment system settings and get the response from my API

Can you direct which Endpoint API to specify and where to register all Merchant API methods?

I’m using OJS 3.2.1-2