{"slug":"mortgage","name":"Mortgage Calculator","category":"fortune","tags":["spending","protecting","planning"],"tagline":"True monthly cost — principal & interest plus taxes, insurance, and PMI, not just the loan.","endpoint":"https://xearno.tools/api/v1/tools/mortgage","page":"https://xearno.tools/t/mortgage","description":"Monthly mortgage payment from price, down payment, rate, and term — including the parts lender ads leave out: property tax, home insurance, and PMI when the down payment is under 20%. The headline number here is the full PITI cost of owning.","inputSchema":{"type":"object","properties":{"price":{"description":"Home price","type":"number","minimum":1,"default":400000},"downPct":{"description":"Down payment (%)","type":"number","minimum":0,"maximum":100,"default":20},"rate":{"description":"Interest rate (%)","type":"number","minimum":0,"maximum":30,"default":6.5},"years":{"description":"Term (yr)","type":"number","minimum":1,"maximum":50,"default":30},"propertyTax":{"description":"Property tax / year","type":"number","minimum":0,"default":4000},"insurance":{"description":"Home insurance / year","type":"number","minimum":0,"default":1500}},"required":[],"additionalProperties":false},"methodology":["P&I uses the standard amortization formula M = L·i/(1 − (1+i)^−n). Property tax and insurance are annual figures divided by 12. PMI is estimated at 0.6%/year of the loan while the down payment is under 20% — actual PMI ranges ~0.3–1.5% by credit score and LTV.","Excluded: HOA fees, maintenance (budget ~1%/year of home value), closing costs, and rate changes on ARMs. This models a fixed-rate loan."],"usage":"POST https://xearno.tools/api/v1/tools/mortgage with a JSON body matching inputSchema."}