Interest Calculator API is a software interface that allows developers to easily incorporate compound interest calculations into their own applications.

"Explore localized interest rates effortlessly with the Interests Rates Explorer US API, which provides accurate and up-to-date financial information tailored to specific geographies."

"Explore the USA Interest Rate API to get accurate, location-specific financial information, streamline calculations and improve economic decision making."

Explore the Interest Rate Sales by Zip Code API to get accurate, location-specific financial information, streamline calculations and improve economic decision making.

"Explore the US Interest Rate Sales API to get accurate, location-specific financial information, streamline calculations and improve economic decision making."

The API provides users with up-to-date information on the current risk-free rate, as well as historical data on the rate over a given period of time.

The Zip Interests Rate USA API automates precise calculations of sales tax, guaranteeing compliance, minimizing errors, and enhancing financial efficiency.

Investment Calculations API is a cutting-edge financial software solution that offers a wide range of calculations related to investment performance, and portfolio optimization.

Access up-to-date Treasury rates across all durations. Reliable financial data for market analysts, investors, banks, and fintech platforms.

Accurate and current Treasury yield data, perfect for building dashboards, risk models, or fixed-income investment tools.

Analyze the U.S. yield curve with our API, covering 1-month to 30-year Treasury securities, updated every trading day.

Retrieve real-time U.S. Treasury bond yields, from 1-month bills to 30-year bonds, ideal for economic tracking and forecasting.

Get the latest U.S. Treasury yields by term from 1 month to 30 years. Updated daily for financial analysis and insights.

A comprehensive suite of South African financial calculators covering bond and property costs, vehicle finance, PAYE tax, VAT, retirement lump sums, personal loans, and inflation. All monetary values in ZAR. Covers 25 endpoints across bond, vehicle, tax, and personal finance modules. Data sourced from SARS, LPC, Government Gazette, SARB, and Stats SA.

A globally usable mortgage and loan calculator supporting multiple currencies. Covers monthly repayments, full amortisation schedules, affordability reverse-calculation, early repayment savings, side-by-side comparison, total cost of ownership, APR, debt-to-income ratio, stamp duty estimates, refinance break-even, balloon payments, interest-only periods, loan consolidation, and biweekly payment options. Pure maths — no external data sources. Pass any currency code (USD, GBP, EUR, ZAR, AUD, etc.) for localised display.

Lender-grade solar+BESS pre-feasibility for African C&I. IRR, DSCR, sensitivity, carbon credits.

The Treasury Securities Rates API provides real-time and historical rates for Treasury bills and bonds, helping investors, analysts, and researchers.

This API provides access to Canadian GIC (Guaranteed Investment Certificate) interest rates data. Consumers can query general bank listings or retrieve specific rate information per financial institution with filtered parameters.

The CD Rates Finder API provides up-to-date data on the best Certificate of Deposit (CD) rates available, helping users compare banking options and make informed financial decisions.

Ensure rigorous assessments with our Engineering-Grade Hybrid Solar Feasibility API tailored for Africa.

The Money Market Insights API provides data on high-yield money market accounts, including account names and detailed APY, deposit, and fee information.

This API extracts data on high-yield savings accounts from Yahoo Finance’s personal finance articles, such as account details, interest rates, minimum deposit requirements, and financial institutions offering them. The API helps users compare savings options easily.

B2B intelligence data for US Credit Unions, providing automated CRM data, ESG risk metrics, delinquency ratios, and live ATM geolocations.

Discover the benefits of biweekly payments to accelerate your loan repayment with our practical calculation API.

Calculate monthly bond repayments quickly to optimize your home loan planning.