- Canon has a REST API, and the most affordable API supporting cameras.
- Fujifilm has an API, but not REST based, but it goes all the way back to the X-T3. Unfortunately, using it voids your warranty if there is a warranty.
- Sony has an API as well but mostly newer cameras.
- Blackmagic (video cameras) has a REST API, but their most affordable API-supporting cameras are meant for studio use, which isn't ideal for general use.