Short answer
Turn on your booking app's Google Calendar sync, then share that Google calendar's "Secret address in iCal format". That one read-only link is enough for a building directory to show your open times. GlossGenius is simpler: it has its own calendar link under Two-Way Calendar Sync.
Square Appointments, Vagaro and Booksy
- In the app's settings, turn on Google Calendar sync.
- In Google Calendar on a computer, open Settings, pick the synced calendar, and copy "Secret address in iCal format".
- Paste that link where the building asks for it. It's read-only; nobody can change your calendar with it.
GlossGenius
Settings → Preferences → Two-Way Calendar Sync → Copy Calendar Link. One paste, no Google needed.
Apps without a calendar link
If your app can't sync to a calendar (or you book through Instagram), you can still be listed with your hours and a Book button. You just won't show live openings unless you keep your day in Google Calendar.
Privacy
A building directory only needs busy and free times. Your Next Chair discards client names and appointment details the moment the feed is read and never writes to your calendar. You can disconnect any time.
Related questions
Is it safe to share my Google Calendar secret address?
It gives read-only access to that one calendar. Share it only with a service you trust, and you can reset the address in Google Calendar settings any time to cut off access.
Does GlossGenius need Google Calendar to share availability?
No. GlossGenius has its own calendar link under Settings → Preferences → Two-Way Calendar Sync.
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