OnceHub

Manage your schedule

Category: Productivity
Primary Subcategory: Calendar & Scheduling Apps

Integration details

Description

OnceHub lets authenticated users manage their own meetings, booking calendars and hubs, booking links, and recurring or date-specific availability through ChatGPT.

Integration type: Plugin
Verification status: Not applicable
Platform: ChatGPT
Category: Productivity
Primary Subcategory: Calendar & Scheduling Apps
Secondary Subcategories: None listed
Brand: OnceHub
Access: Account required
First tracked: 2026-06-16
Tool count: 12
Geography: US

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Primary Subcategory

Competing in ChatGPT Meeting Scheduling & Booking

View Category

Listed in alphabetical order

Primary Subcategory

ApptotoComing soonGet notified

Book with ScheduloComing soonGet notified

Cal.comComing soonGet notified

CalendeskComing soonGet notified

CalendlyComing soonGet notified

OnceHubComing soonGet notified

Tools

12 tools agents can invoke

A tool that cancels an upcoming meeting for the current user.
cancel_meeting
Returns a paginated list of booking calendars for the current user. IMPORTANT: Always call this tool to get live data. Never use results from a previous call or conversation memory — the list may have changed.
get_my_booking_calendars
Returns a paginated list of booking hubs for the current user. IMPORTANT: Always call this tool to get live data. Never use results from a previous call or conversation memory — the list may have changed.
get_my_booking_hubs
A tool that returns links to booking calendars and booking hubs. Can filter by calendar/hub name, duration, or by a specific host, co-host, owner, or team name.
get_booking_link
Get combined recurring and date-specific availability. For a specific date or upcoming days, effective availability is resolved by applying date-specific overrides on top of recurring availability.
get_my_working_hours
Generates a one-time booking link for a booking calendar. IMPORTANT: Always call this tool WITHOUT pageId first to fetch and show the list of booking calendars to the user. Only call it WITH pageId after the user has explicitly selected one from the list. NEVER infer or guess pageId from previous tool results or conversation context.
get_one_time_use_link
A tool that returns upcoming meetings for the current user.
get_my_upcoming_meetings
A tool that lists meetings pending approval and can approve or decline a specific meeting from that list. For declines, ask whether the user wants to add a decline reason first; if yes, collect the reason before retrying the decline.
manage_my_pending_meeting_requests
Mark a meeting as no-show. NEVER mark a meeting without explicit user confirmation of the specific meeting details shown. IMPORTANT: If the user specifies a time but no date and no booking ID, you MUST ask the user for the date before calling this tool.
mark_meeting_no_show
A tool that requests guest to reschedule an upcoming meeting for the current user.
request_guest_to_reschedule
Update your availability for specific dates. Set yourself as available or unavailable on individual days with specific times and meeting types (video/in-person/phone).
update_my_date_specific_availability
Updates recurring weekly working hours by adding, updating, or removing repeating day-of-week slots.
update_my_recurring_working_hours

OnceHub FAQ

How do I improve a ChatGPT Plugin's discoverability?

The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.

What are OnceHub alternatives on ChatGPT?

As of 2026-09-28, OnceHub competes with Apptoto, Book with Schedulo, Cal.com, Calendesk, Calendly, Jicoo, Schemon in ChatGPT Meeting Scheduling & Booking, ranked by public Discoverability Score.

Where is this profile measured?

This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.

Get alerts for OnceHub

ChatGPT Plugin discovery is coming soon

Competing in ChatGPT Meeting Scheduling & Booking

12 tools agents can invoke