01
Trigger on event
- Listen for a new event
- Parse and validate the payload
- Take an action with the linked tool
Scheduleonce
27 tools available
Scheduling platform for capturing, qualifying, and engaging with inbound leads
Connect Scheduleonce to Definable to automate repetitive tasks, sync data with the rest of your stack, trigger on real-world events. Personas call Scheduleonce's 27 tools directly from chat or scheduled flows. You can wire it into any persona to read, write, and react when an event fires.
Common workflows with Scheduleonce
02
Daily summary
- Pull yesterday's activity
- Summarise with the model of your choice
- Send the digest via email or Slack
03
Cross-tool sync
- Read records from one app
- Transform with a persona
- Write the result back via this integration
Scheduleonce actions 27
Every Scheduleonce action below is a callable tool any Definable persona can invoke.
Book Time Slot
Tool to book a time slot on a booking calendar in OnceHub. Use when you need to schedule a meeting by booking one of the available time slots. First retrieve available time slots using 'Get available time slots', then use this tool to book one of those slots with guest information.
Cancel Booking
Tool to cancel a booking by ID in OnceHub. Use when you need to cancel an existing booking, optionally providing a cancellation reason and controlling whether to send cancellation email notifications.
Create Contact
Tool to create a new contact in ScheduleOnce. Use when you need to add a contact with email, first name, and last name. Additional fields like company, phone, and address details can be optionally provided.
Create One-Time Link for Booking Calendar
Tool to create a one-time booking link for a booking calendar in OnceHub. Use when you need to generate a unique, single-use booking link for a customer. One-time links are good for one booking only and automatically expire after one year if not used. The booking calendar must be published to create one-time links.
Create User
Tool to create a new user account in OnceHub. Use when you need to add a new user with first name, last name, and email. Optional role can be specified.
Delete Contact
Tool to delete a contact by ID from OnceHub. Use when you need to permanently remove a contact from the system.
Delete User
Tool to delete a user account from OnceHub. Use when you need to permanently remove a user from the system.
Get Available Time Slots
Tool to retrieve available time slots for a booking calendar from OnceHub. Use when you need to check availability for scheduling appointments within a specific date range (maximum 30 days). Returns real-time availability based on booking rules and participant calendars.
Get Single Booking
Tool to retrieve a single booking by ID from OnceHub. Use when you need to fetch complete booking details including timing, customer information, location, status, and form submission data.
Get Single Booking Calendar
Tool to retrieve a single booking calendar by ID from OnceHub. Use when you need to fetch detailed information about a specific booking calendar including its subject, name, URL, host, published status, and duration.
Get Single Contact
Tool to retrieve a single contact by ID from OnceHub. Use when you need to fetch complete contact details including personal information, location data, and custom fields.
Get Single Master Page
Tool to retrieve a single master page by ID from OnceHub. Use when you need to fetch complete master page details including name, label, URL, and active status.
Get Single User
Tool to retrieve a single user by ID from OnceHub. Use when you need to fetch detailed information about a specific user including their name, email, status, role, timezone, and team associations.
Get User Scheduling Availability
Tool to get user scheduling availability from OnceHub. Use when you need to retrieve a user's weekly schedule, working hours, and any date-specific overrides.
List All Booking Calendars
Tool to list all booking calendars in the account. Use when you need to retrieve all booking calendars with optional cursor-based pagination.
List All Booking Pages
Tool to list all booking pages in the account. Use when you need to retrieve all booking pages with optional cursor-based pagination.
List All Bookings
Tool to list all bookings in the account. Use when you need to retrieve bookings with optional filtering by time ranges, pagination, or expansion of related objects.
List All Contacts
Tool to list all contacts in the OnceHub account. Use when you need to retrieve contact information with optional filtering by creation time, update time, owner, or cursor-based pagination.
List All Event Types
Tool to list all event types in the account. Use when you need to retrieve all event types with optional cursor-based pagination to understand available event type options.
List All Master Pages
Tool to list all master pages in the account. Use when you need to retrieve all master pages with optional cursor-based pagination.
List All Teams
Tool to list all teams in the OnceHub account. Use when you need to retrieve team information with optional cursor-based pagination.
List All Users
Tool to list all users in the OnceHub account. Use when you need to retrieve user information with optional cursor-based pagination.
Mark Booking as No-Show
Tool to mark a completed booking as no-show in OnceHub. Use when the customer did not attend the scheduled meeting and you need to update the booking status to reflect the no-show.
Test API Key
Tool to validate API key authentication for OnceHub. Use when you need to verify that your API key is valid and active before making other API calls to the platform.
Update Contact
Tool to update an existing contact in ScheduleOnce. Use when you need to modify contact information such as name, email, company, or phone number.
Update User
Tool to update an existing user in OnceHub. Use when you need to modify user information such as name, email, role, or timezone.
Update User Scheduling Availability
Tool to update user scheduling availability in OnceHub. Use when you need to modify a user's weekly schedule, set working hours for specific days, or add date-specific overrides for holidays or special events.
Apaleo
Apaleo is a cloud-based property management platform handling reservations, billing, and daily operations for hospitality businesses
Appointo
Appointo is an appointment booking application designed for Shopify stores, enabling businesses to integrate online booking systems seamlessly into their websites without any coding required.
Ascora
Ascora is a cloud-based field service management software designed to streamline operations for service-based businesses, offering features such as job scheduling, invoicing, customer management, and mobile access.
Bookingmood
Bookingmood provides flexible, commission-free booking software for rental businesses of all sizes, enabling seamless integration with your website.
Booqable
Booqable is a rental software platform that helps businesses manage inventory, bookings, and online reservations.
Cal
Cal simplifies meeting coordination by providing shareable booking pages, calendar syncing, and availability management to streamline the scheduling process
Frequently asked questions
What can I automate with Scheduleonce on Definable?
Anything Scheduleonce exposes through its API. Common scheduling & booking workflows on Definable include automate repetitive tasks, sync data with the rest of your stack, trigger on real-world events. Personas can call any of the 27 Scheduleonce tools directly, then chain the result into another integration without you writing code.
How does Scheduleonce authentication work?
Scheduleonce uses API_KEY, OAUTH2 on Definable. You connect once from the integrations page, scoped to the permissions you choose, and from then on any persona that has the integration enabled can act on your behalf. Tokens are encrypted at rest and rotated automatically.
Is the Scheduleonce integration included in my Definable plan?
Yes — every Definable plan, including Starter, includes access to all 27 Scheduleonce tools. You only need a separate Scheduleonce subscription if Scheduleonce itself charges per seat or per API call.
Is using Scheduleonce through Definable secure?
Every call from a persona to Scheduleonce is logged with the user, persona, prompt, and response. Tokens never leave Definable's secrets vault, scopes are configurable per persona, and you can revoke access at any time from the integration page.
How do I get started with Scheduleonce on Definable?
Sign up for Definable, open the integrations page, find Scheduleonce, and connect via OAuth or API key. You can immediately attach Scheduleonce to any persona and start running workflows. The free Starter plan includes 5,000 credits/month.
What Scheduleonce actions does Definable expose?
Definable exposes all 27 Scheduleonce actions as callable tools — including `Book Time Slot`, `Cancel Booking`, `Create Contact`, plus 24 more. Each tool gets a typed parameter schema so personas know exactly how to call it.
Ready to automate with Scheduleonce?
Wire it up in minutes. No coding required.