Supply a token with API Execute permissions in the query string, and the basic details of the loan in the request body to get the calculated amortized and interest-only payment amounts.
Principal is the amount of the loan.
Rate is the interest rate.
Payments is the number of payments on the loan.
Schedule has these choices: Once, Annually, Quarterly, Monthly, Weekly, Daily, Bimonthly, Semiannually, Biweekly, Biennially, Semimonthly, Unknown
Modifier has these choices (can be omitted and "Default" will be used): Default, Days365, Days366, Days36525, Days360, Days336
The response will include the interest-only and amortized payment amounts.