{"uid":"cap_Ff04rMHt7aMTL9X7O1DJa","slug":"mortgage-payment-total-interest-calculator-5f572b3a","name":"Mortgage Payment & Total Interest Calculator","description":"Mortgage payment and total interest calculator. GET /mortgage?principal=300000&rate=6&years=30 → monthlyPayment, totalPaid, totalInterest. Deterministic JSON, instant.","url":"https://aniccanomac-mini-1.tail7a0ba4.ts.net:10000/mortgage","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["principal","rate","years"],"properties":{"rate":{"type":"number"},"years":{"type":"number"},"principal":{"type":"number"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Seb_dFZgZ3wWUbAbjSKy7","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates monthly mortgage payment, total amount paid, and total interest for a given principal, annual interest rate, and loan term in years.","exampleAgentPrompt":"What would my monthly payment and total interest be on a $450,000 mortgage at 6.5% interest over 30 years?","exampleUseCases":null,"resultDescription":"Returns a JSON object with monthlyPayment (the fixed monthly installment), totalPaid (total amount paid over the life of the loan), and totalInterest (total interest paid), all computed deterministically from the inputs.","failureModes":["Missing required parameter (principal, rate, or years) returns an error","Non-numeric values for parameters cause a validation error","Zero or negative principal/rate/years may return an error or nonsensical result","Extremely large loan amounts or unusual rate values may produce unexpected output"],"whenToPreferThis":"Use this endpoint when you need a fast, deterministic, server-side calculation of standard fixed-rate mortgage figures — monthly payment, total paid, and total interest — without needing a full amortization schedule. Prefer this over a compound interest calculator when the user is asking specifically about a mortgage (amortized loan repayment) rather than savings growth.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:39:41.952Z","isFirstParty":false}