The Excel Formulas API allows developers to compute Excel formulas by providing the formula as a parameter and returning the result. This API can be used to automate Excel calculations, integrate Excel functionality into other applications and systems, and perform complex calculations on large data sets. It supports a wide range of Excel functions and returns the result in JSON format.

Automate age calculations for individuals or events, streamlining age-related tasks and ensuring precise date computations effortlessly.

The Expression Evaluation API is a versatile natural language calculator that can evaluate mathematical expressions and return the results in plain text. Simply input the expression to be evaluated, and the API will scan and compute the calculation, making it an easy-to-use tool for developers who want to incorporate a calculator function into their applications.

The Identity Fabrication API creates realistic digital identities ideal for software testing, research and privacy protection.

Efficiently generate specific keywords using our Keyword Formulator API. Designed for SEO experts and marketers enhancing content visibility strategies.

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.

Generate unique and relevant domain names effortlessly with our Domain Name Creation API, ideal for websites, businesses, and online ventures.

This API converts your text instructions into Excel and Google Sheets formulas and explains your entered formulas on the other hand. Thus, it helps you work effectively without spending too much time just thinking about a formula.

The Fabricated Identity Generator API creates realistic digital identities, ideal for software testing, research endeavors, and preserving confidentiality.

The Web Address Creator API generates unique, user-friendly URLs, simplifying web navigation and enhancing online experiences with just a few clicks.

The Excel Formula Wizard API transforms text instructions into accurate Excel and Google Sheets formulas. It also provides explanations for generated formulas, helping you understand and utilize them effectively. Streamline your spreadsheet tasks and save time with this intuitive tool designed for formula creation and clarification.

A recipe generator API is a tool that generates new recipes based on user inputs and preferences, it can be integrated into a website or mobile application.

The Naming Solution API seamlessly creates unique, memorable, and captivating business names, fostering creativity and branding for startups effortlessly.

Due date from embryo transfer date. Day-3, day-5, day-6 and egg retrieval calculated separately.

Ovulation estimate and 6-day fertile window from cycle length. Not contraceptive guidance.

Gestational age at any given date, returned as a 29w2d label and as total days.

Canonical injection test strings for checking your own escaping: SQL tautology, XSS, path traversal, template injection. Harmless probes, not working exploits. Reproducible seeds.

Integer and floating-point edge cases: int32/int64 limits, NaN, infinity, denormals, and IEEE 754 rounding. Deterministic seeds, and every value explains what it breaks.

QA test fixtures and CI seed data with reproducible seeds, so pinned test runs return identical rows every time. 16 field types, each value explaining what it breaks.

Boundary value test data for off-by-one bugs: int32 and int64 limits, max-length strings, empty values. Deterministic seeds, and every value explains what it breaks.

Due date from last menstrual period using Naegele's rule, with 21-45 day cycle length correction.

Dating from BPD, HC, AC and FL measurements in millimetres, using Hadlock 1984 equations.

Conception date from a last menstrual period or from a known due date, as ISO 8601 dates

Estimate property costs effortlessly with our comprehensive financial calculator API.