Is xMath free to use?

Yes, xMath is listed as a free public API. Visit the official documentation for current rate limits and usage policies.

Does xMath require an API key?

No, xMath works without any authentication — you can call it directly.

Can I call xMath directly from the browser?

Yes, xMath supports CORS, so client-side calls work without a proxy.

xMath — Free Public API

Overview

xMath was listed as a free public API: Random mathematical expressions.

⚠️ Unreachable (verified 2026-08): health checks returned HTTP 404** — this may reflect the service status, but it could also be affected by network/environment factors — please verify from your own network before relying on it.

Status history

Listed as a free API with: No auth, HTTPS: Yes, CORS: Yes.
Official URL: https://x-math.herokuapp.com/
2026-08 verification: HTTP 404 — offline.

Alternatives

Browse other listings on this site in the science-and-math category for working alternatives, or check the official site above to see if the service has moved to a new domain.

FAQ

Is xMath still working? As of 2026-08 the endpoint returns HTTP 404 — assume it’s offline until proven otherwise.

Was it free? It was listed as a free public API.

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