A
APIs Score

Newton API

Beginner's Pick Science & Math / No Auth Required Beginner HTTPS
Free to Use
92 A+
Metadata Score 0 50 100 Metadata estimate · not endpoint-tested
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

The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.

Newton data via REST API

Example Response

Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.

JSON Response · Illustrative 
{
  "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

Calls a real endpoint of this API. Replace any placeholder credentials with your own key.

Request 
const url = "https://newton.vercel.app/api/v2/simplify/2%5E2%2B2(2)";
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

Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.

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.

Metadata Score Breakdown

Estimated from metadata — endpoint not independently tested

This score is estimated from observable metadata — HTTPS support, authentication model, declared CORS, and documentation reachability — because the API requires authentication or exposes no publicly testable endpoint. The five-signal breakdown is only shown for live-tested APIs.

Metadata estimate · endpoint not independently tested

How is this scored? →

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS NO
Category Science & Math
Difficulty Beginner
Listing details not endpoint-verified

Related Tags

#science-and-math

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