get https://api.finmo.net/v1/payin-method/param/
This API will provide all the parameters which may be needed for a particular Payin method. The parameters returned could be optional or mandatory.
For e.g. if you pass Payin method for accepting payments via NPP in Australia (Payin method name : au_bank_npp), the parameter returned is a payid_reference. This is an optional field so in case this field is not provided, Finmo may generate a random value.