Neo Smart Blinds is actually compatible with:

Control4, Savant, Indigo, IFTTT, Creston, Siri, Google Assistant and Alexa.

Nonetheless, I've found some possible indications of a local API. But I haven't found any documentation, so you'll have to contact Neo Smart Blinds team for the documentation.

For the local API usage, I think you may need their Neo Hub (needs confirmation).

Best regards