Developer Hub
Can I use your FREE API on my commercial website?
Yes. BigDataCloud's free APIs are available for use on commercial websites and applications, provided your usage complies with the terms and conditions of the relevant API package.
Before integrating, review the documentation for each endpoint to understand the request limits and any fair use requirements that apply. The client-side Reverse Geocoding API in particular has a fair use policy that must be followed regardless of whether your site is commercial or not.