ViewMaster has a built-in Web Server and REST API, which allows control and configuration of the system from a Web Browser or third-party software.
The default TCP port for the server is 888, but this can be changed in the configuration. Here are some of the basic commands available on the REST API. All data is passed in JSON format.
| Endpoint | Function |
| GET http://<host>/api/version | Returns ViewMaster software version |
| GET http://<host>/api/settings | Returns the current settings |
| GET http://<host>/api/sources | Returns a list of all available NDI sources |
| POST http://<host>/api/settings | Updates the settings. All fields in the posted data are simply merged with the current settings, so you only need to specify the field you wish to change. This causes a complete reload of the window |
| POST http://<host>/api/source | Updates the source for a single window, specified by row and column. Unlike a POST of settings, this does not cause a complete reload of the window layout. |
The full ViewMaster VR API is published on Postman: https://documenter.getpostman.com/view/713943/UzBvGikG