US Mortgage Calculator

www.usmortgagecalc.com

A U.S. mortgage calculation website that exposes its mortgage calculators through a documented JSON REST API over HTTPS.

API

What your agent can do

  • Full monthly housing cost for a US mortgage: principal and interest, property tax, homeowners insurance, mortgage insurance and HOA dues, plus lifetime totals and payoff timing.

    Via API.

Tasks depend on the interface and permissions.

Connection methods

Choose a route that fits your agent.

API connection
API path
https://www.usmortgagecalc.com/api/v1/calculate-mortgage

Authentication
No sign-in required.

Documentation & experience

  • 1 of 1 connection paths checked
  • Latest documentation check 9 Oct 2026
View sources and checks
How documentation is checked