N

Numbers API

REST discovered

Details Spec supplied by APIs.guru
URL
https://api.math.tools
Spec
https://api.apis.guru/v2/specs/math.tools/1.5/openapi.json
Spec (yaml)
https://api.math.tools/yaml/math.tools.numbers.openapi.yaml
Docs
https://math.tools/api/numbers/
Authentication
Math.tools Numbers API secret api_key discovered Get key ↗

Go to the Numbers API page. The OpenAPI description says to "subscribe" there and uses the X-Mathtools-Api-Secret header for authentication. The public docs page is the closest published place to obtain the API secret, but the scraped page did not expose the exact subscription flow or dashboard steps.