{"sistema":"PRICE","principal":10000,"monthly_rate_percent":1.5,"months":12,"primeira_prestacao":916.8,"ultima_prestacao":916.8,"total_pago":11001.6,"total_juros":1001.6,"schedule":[{"parcela":1,"prestacao":916.8,"juros":150,"amortizacao":766.8,"saldo":9233.2},{"parcela":2,"prestacao":916.8,"juros":138.5,"amortizacao":778.3,"saldo":8454.9},{"parcela":3,"prestacao":916.8,"juros":126.82,"amortizacao":789.98,"saldo":7664.92},{"parcela":4,"prestacao":916.8,"juros":114.97,"amortizacao":801.83,"saldo":6863.1},{"parcela":5,"prestacao":916.8,"juros":102.95,"amortizacao":813.85,"saldo":6049.24},{"parcela":6,"prestacao":916.8,"juros":90.74,"amortizacao":826.06,"saldo":5223.18},{"parcela":7,"prestacao":916.8,"juros":78.35,"amortizacao":838.45,"saldo":4384.73},{"parcela":8,"prestacao":916.8,"juros":65.77,"amortizacao":851.03,"saldo":3533.7},{"parcela":9,"prestacao":916.8,"juros":53.01,"amortizacao":863.79,"saldo":2669.91},{"parcela":10,"prestacao":916.8,"juros":40.05,"amortizacao":876.75,"saldo":1793.15},{"parcela":11,"prestacao":916.8,"juros":26.9,"amortizacao":889.9,"saldo":903.25},{"parcela":12,"prestacao":916.8,"juros":13.55,"amortizacao":903.25,"saldo":0}]}
curl --location --request GET 'https://zylalabs.com/api/13141/loan+calculator+api/26655/amortization+schedule?principal=10000&monthly_rate=1.5&months=12' --header 'Authorization: Bearer YOUR_API_KEY'
After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Loan Calculator API simply include your bearer token in the Authorization header.
| Header | Description |
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Authorization
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Required
Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.
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Calculate complete loan amortization schedules using both the fixed installment method and the constant amortization method. Provide the principal amount, the monthly interest rate and the number of installments, and receive each installment with its interest, amortization and remaining balance, plus the totals paid. Ideal for fintech, lending and personal finance apps.
The Loan Calculator API returns a full amortization schedule for loans, including details such as each installment amount, interest paid, principal amortization, remaining balance, and total amounts paid over the loan term.
Key fields in the response include "principal," "monthly_rate_percent," "months," "schedule" (which contains installment details), "total_pago" (total paid), and "total_juros" (total interest).
The endpoint accepts three parameters: "principal" (loan amount), "monthly_rate_percent" (interest rate), and "months" (number of installments). Users can customize their requests by adjusting these values.
The response data is structured in JSON format, with a main object containing loan details and an array called "schedule" that lists each installment's breakdown, including interest, amortization, and remaining balance.
Typical use cases include personal finance applications, lending platforms, and fintech solutions that require detailed loan amortization schedules for user loans, helping users understand their payment obligations.
Users can analyze the "schedule" array to track payment progress, assess interest versus principal contributions, and calculate remaining balances, aiding in financial planning and decision-making.
Data accuracy is maintained through consistent calculations based on standard amortization formulas. The API ensures that the results reflect accurate financial principles for fixed installment and constant amortization methods.
Users can expect a consistent pattern where each installment shows a fixed payment amount, decreasing interest, and increasing principal amortization over time, culminating in a zero balance at the end of the term.
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