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ZARef Bond Repayment Calculator
x402
ZARef Bond Repayment Calculator is a paid API for AI agents from zaref.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).
Calculates South African home loan bond repayment amounts given principal, interest rate, term, and optional deposit
Price / call$0.01
Success—
StatusUnknown
How this service works
South African reference data as clean, cited JSON: fuel prices, interest rates, FX and bond yields, tax tables, tariffs, wages and grants, live government tenders and crypto prices, plus calculators. Built for AI agents and applications.
Output
Returns computed bond repayment figures in JSON, including the monthly instalment amount based on the provided principal, annual interest rate, loan term in years, and optional deposit, using standard South African amortisation methodology.
Example use cases
First-time homebuyer affordability check
“I'm looking at a house for R1.8 million in South Africa and have R150 000 saved for a deposit — what would my monthly bond repayment be if I borrow at 11.75% over 20 years?”
Investment property cash flow analysis
“I want to buy an investment property worth R3.5 million with no deposit at the current South African prime rate of 11.75% over 30 years — what's the monthly repayment so I can compare it against potential rental income?”
Extra deposit impact comparison
“How much would my monthly repayment drop on a R2.5 million bond at 11.75% over 20 years if I put down a R500 000 deposit instead of nothing?”
Technical details
Endpoint
HEADhttps://zaref.dev/calc/bond-repayment?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a South African-specific bond repayment calculation with clean JSON output suitable for AI agents, particularly when working within a broader zaref.dev data pipeline that already uses South African interest rates, FX, or property data. Prefer this over generic mortgage calculators when the user is explicitly dealing with South African home loans (bonds) and needs a cited, reliable, machine-readable result.
Side effects
- Missing required query parameters (amount, rate, years) return an error response
- Invalid or non-numeric parameter values may result in a 400 error
- Extremely high or low rate values outside realistic bounds may return validation errors
- HEAD method returns headers only — response body must be fetched via GET for actual data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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