{"uid":"cap_Y-_SAdgU8AarPAntLMOpG","slug":"xynaptic-property-mortgage-calculator-e15dd3cb","name":"Xynaptic Property Mortgage Calculator","description":"Xynaptic Property Mortgage — clean mortgage calculator: monthly payment, total cost, amortization overview for any rate/duration. GET ?amount=300000&rate=3.5&years=20. Pure calculation, agent-ready.","url":"https://api.xynaptic.io/v1/property-mortgage?utm_source=zero.xyz","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","additionalProperties":{"type":"string"}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_brgwcH62yctlNBwb7vEbj","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","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 cost, and amortization overview for a given loan amount, interest rate, and duration","exampleAgentPrompt":"What would my monthly mortgage payment be if I borrow $300,000 at a 3.5% annual interest rate over 20 years, and how much will I pay in total?","exampleUseCases":[{"title":"First-time homebuyer payment estimate","prompt":"I'm thinking of buying a house for $450,000 with a 10% down payment, so I'd be borrowing $405,000. Can you calculate my monthly payment and total cost at a 4.2% rate over 30 years?"},{"title":"Comparing short vs long mortgage term","prompt":"If I take a $250,000 mortgage at 3.8% interest, what would my monthly payment and total repayment look like over 15 years?"},{"title":"Investment property loan planning","prompt":"I'm financing an investment property with a $600,000 loan at 5.1% over 25 years — can you tell me the monthly repayment amount and total cost including interest?"}],"resultDescription":"Returns the calculated monthly mortgage payment, total repayment amount over the loan lifetime, total interest paid, and an amortization overview showing how principal and interest evolve across the loan duration.","failureModes":["Missing required query parameters (amount, rate, years) returns a 400 error","Invalid parameter types (e.g. non-numeric values) cause a parsing error","Extremely low or zero interest rates may produce unexpected results","Payment failure for the $0.02 USDC x402 fee results in a 402 response blocking computation"],"whenToPreferThis":"Use this endpoint when you need a fast, pure-calculation mortgage result without requiring user accounts, credit checks, or lender-specific rules. Ideal for embedding mortgage estimates into financial planning agents, real estate lookup flows, or comparison tools where you supply the loan amount, rate, and term and just need the numbers.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T18:43:23.704Z","isFirstParty":false,"canonicalSlug":"xynaptic-property-mortgage-calculator-e15dd3cb"}