Top Numbers API Alternatives & Similar APIs (2026)
Looking for alternatives to Numbers API? Compare 7 verified free and public APIs in the math category with rate limits, auth methods, and ready-to-use snippets.
Alternatives Feature Comparison
7 Options| API Service | Auth Type | Rate Limit | CORS | Action |
|---|---|---|---|---|
| Newton | No Key (Zero-Auth) | Unlimited | HTTPS • CORS | Explore |
| Math.js | No Key (Zero-Auth) | Unlimited | HTTPS • CORS | Explore |
| Wolfram Alpha | Free Key | 2000 req/month | HTTPS • CORS | Explore |
| MathPix | Free Key | 1000 req/month | HTTPS • CORS | Explore |
| Business Day Calculator | No Key (Zero-Auth) | Free (No auth required) | HTTPS • CORS | Explore |
| Math Function Parser | No Key (Zero-Auth) | Free (No auth required) | HTTPS • CORS | Explore |
| SLA Uptime Calculator | No Key (Zero-Auth) | Free (No auth required) | HTTPS • CORS | Explore |
Detailed Breakdown of Numbers API Alternatives
Newton
Calculates symbolic derivatives, integrals, zeroes, and trigonometry equations
Math.js
Extensive math expression evaluator parsing complex numbers and units
Wolfram Alpha
Computational intelligence engine delivering direct algorithms and knowledge facts
MathPix
OCR engine parsing handwritten math equations into LaTeX and MathML
Business Day Calculator
This API provides business day calculations for a specified region, specifically England and Wales. Users can input a date range and receive the number of business days within that timeframe, helping with planning and scheduling.
Math Function Parser
This API provides functionalities to parse and resolve mathematical expressions. It includes endpoints to tokenize expressions, resolve them, and return their abstract syntax tree (AST).
SLA Uptime Calculator
The SLA Uptime Calculator API provides calculations for expected downtime based on specified uptime percentages. It supports both simple and complex calculations, allowing users to input downtime durations and receive corresponding SLA uptime percentages.
Choosing the Best Alternative to Numbers API
Which alternative is quickest to start?
Alternatives labeled "Zero-Auth" do not require registration or API keys. You can swap your endpoint URL and test in minutes without creating provider accounts.
Are these alternatives free for production?
All listed alternatives offer legitimate free tiers or open data licenses. Review the specific rate limits on each API detail page to ensure your traffic stays within quota.