One API to look up U.S. federal GSA per-diem (travel lodging + M&IE) and HUD Fair Market Rent / Small Area FMR (rent by bedroom, with voucher payment-standard bands) for any ZIP code — joined in a single call. FY2026, public-domain data, clean JSON. Built for travel-nurse stipend, relocation/HR, and real-estate/Section-8 tools. Unofficial; not affiliated with GSA or HUD.

Calculate net monthly salary and payroll deductions for 20 countries across Latin America, Spain and Portugal. Ideal for HR tech, fintech and remote-work platforms.

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.

Historical Metal Market API provides instant and past pricing for precious and industrial metals. Supports integration with apps, tools, and financial software.

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

Global Metals Rates API delivers up-to-date and past metal prices like gold, silver, and copper—ideal for financial apps, dashboards, and market analysis.

This API calculates the total cost of ownership for a vehicle, including depreciation, maintenance, insurance, fuel, taxes, and annual repairs.

Navigate the nuances of living costs in Spain with the Spain Cost of Living API. Explore essentials like housing, groceries, transportation, and entertainment. Gain insights into salaries and purchasing power, empowering your decisions in the dynamic realm of Spanish living.

Easily retrieve and organize your vehicle expense records through our user-friendly API solution.

Track and fetch real-time costs associated with vehicle expenses to streamline budgeting and reporting.

Quickly assess your debt-to-income ratio with our accurate tool, ensuring your mortgage approval success.

Calculate your balloon payments easily, helping you manage large final payments effectively with our API.

Calculate global stamp duties with ease using our comprehensive Stamp Duty Calculator for any mortgage or loan.

Evaluate your home buying possibilities with our Affordability Calculator, making budgeting simpler and smarter.

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

Explore options to combine multiple loans effortlessly with our Loan Consolidation API for better financial management.

Generate clear amortization schedules for your mortgages, allowing for better planning of your repayment strategy.

Determine your refinancing break-even point accurately, ensuring you make informed decisions with our intuitive tool.

Simplify interest calculations with the APR Calculator, helping you choose the best loan options available.

Understand interest-only mortgage structures with our tool, offering clarity on potential costs and benefits.

Track global metal prices in real-time or historically with this API. Supports key metals like gold, silver, platinum, and more. Reliable and easy to integrate.

Accurately calculate transfer duty and conveyancing fees to streamline property transactions.

Estimate property costs effortlessly with our comprehensive financial calculator API.

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