Since cloud API-based functionalities only depend on sending an image to the server, you can use it from any device even tiny ones like Arduino and Raspberry Pi.
We also offer an on-premises version of our technology where you can run the API server in your own data center or office. Then, you can use the REST API/SDKs while connecting to your local server.
If you want to run our technologies directly on small devices, this is beyond the scope of OpenCV Face Recognition, however, you can contact us for custom solutions.