M
API Matrix

Newton API

⭐ Beginner's Pick Science & Math / No Auth Required Beginner HTTPS
Free to Use Varies (check documentation)
92 Score
Grade A+
Visit Official Site Compare Alternatives

Overview

Newton is a free microservice API that performs symbolic and arithmetic math calculations — from simplifying expressions to computing derivatives and integrals. You just pass a math operation and expression in the URL and get a clean result back. No API key or account is needed, making it perfect for developers who want to add math-solving features to their apps.

💡

Beginner Tip

The expression must be URL-encoded — replace + with %2B, spaces with %20, and use %5E for exponents; test your encoding with a quick curl command before integrating into your app.

Available Data

Newton data via REST API
JSON-formatted response data
Freely accessible without authentication

Example Response

JSON Response 
{
  "status": "success",
  "data": {
    "result": "Data from Newton",
    "description": "Symbolic and Arithmetic Math Calculator",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

operation The name of the math operation that was performed (e.g., "simplify", "derive", "integrate").
expression The original math expression you submitted, as decoded by the server.
result The computed result of the operation as a math expression string.

Implementation Example 

const url = "https://newton.vercel.app/";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

400 or garbled result The math expression was not properly URL-encoded before being placed in the URL path.
✓ URL-encode special characters: ^ becomes %5E, + becomes %2B, and spaces become %20. Use encodeURIComponent() in JavaScript.
"result": "undefined" The operation is not supported for the given expression type (e.g., integrating a non-integrable function).
✓ Check the supported operations list on the Newton docs. Not all expressions can be solved symbolically.
Connection refused or 502 The free Vercel deployment may be temporarily unavailable or cold-starting.
✓ Wait a few seconds and retry. For production use, consider self-hosting Newton since the source code is open.

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 20/20
🔒 Security 15/15
🛠 Developer XP 20/20
✓ Reliability 7/15
Response Time 47ms

Fully tested on Apr 5, 2026

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS NO
Category Science & Math
Difficulty Beginner
Verified: 2026-04-04

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