Integration

OnceHub integration

OnceHub is a meeting scheduling and booking platform. Read and filter bookings, cancel them, ask the customer to reschedule, reassign them to another host or mark a no-show; list booking calendars, check their open time slots and book a slot for a guest; manage contacts, users and their teams, read a user's weekly availability, review SMS notification delivery, and manage webhook subscriptions. Left out on purpose: one-time booking links and the meeting join, ICS, cancel and reschedule links (single-use capability URLs), contact street addresses and location values, webhook signing secrets and receiving URLs, the availability update (it overwrites location values this catalog does not return) and the API-key test route. Rate limits: 5 requests per second per account and 200 requests per 5 minutes per IP address (HTTP 429 rate_limit_error beyond). Authentication: an API key created under Account Integrations, APIs & Webhooks, sent in the API-Key header.

Connect OnceHub How integrations work

Ask it in chat

Say what should happen.
The workflow builds itself.

When this happens, do that in OnceHub.Built from the 28 OnceHub tools below, on the connection you add once.

What you can do with OnceHub

Each of these is one operation on one endpoint, available both as a workflow step and as a tool an AI agent can call on its own. Nothing bundles several operations into one action, so what a run did stays readable afterwards.

Most endpoints run on the free plan. A few, mainly the ones that publish on your behalf, need a paid plan.

Contact, 5 operations

create_contactCreate contactPOSTCreates a contact in OnceHub. first_name and last_name are required, and at least one of email or mobile_phone must be sent. Returns the new contact (address fields and custom field values withheld).
delete_contactDelete contactDELETEPermanently deletes a contact. Returns the contact id and deleted: true.
get_contactGet contactGETReturns one contact: name, email, phones, company, job title, status, owner, timezone and consent flags. Street address fields and custom field values are not returned.
list_contactsList contactsGETLists contacts in the account, 10 per page by default (max 100). Filter by email or by creation / last-update date ranges; page with after while has_more is true. Street address fields are not returned.
update_contactUpdate contactPATCHUpdates a contact: only the fields you send change (send at least one). email and mobile_phone cannot be changed here. Leave a field out to keep its current value.

User, 5 operations

delete_userDelete userDELETEDeletes a user from the OnceHub account. Returns the user id and deleted: true.
get_userGet userGETReturns one user: name, email, status (active or invited), role, timezone and the IDs of the teams the user belongs to.
invite_userInvite userPOSTAdds a user to the OnceHub account and sends them an invitation email. Role defaults to Member. User limits depend on the plan (500 on purchased accounts, 30 on trials). Returns the new user.
list_usersList usersGETLists users in the account (name, email, status active or invited, role, timezone and team IDs). Filter by email; page with after while has_more is true.
update_userUpdate userPATCHUpdates a user's name, role or teams (send at least one). Sending teams REPLACES all of the user's current team assignments. The Account Owner role cannot be assigned or changed here.

Webhook, 4 operations

create_webhookCreate webhookPOSTCreates a webhook subscription: OnceHub will POST event payloads to url. Its signing secret is not returned here; read it in OnceHub under Account Integrations, APIs & Webhooks, View secret.
delete_webhookDelete webhookDELETEDeletes a webhook subscription; OnceHub stops sending its events. Returns the webhook id and deleted: true.
get_webhookGet webhookGETReturns one webhook subscription: id, name, subscribed events, API version and creation time. Its receiving URL and signing secret are not returned.
list_webhooksList webhooksGETLists the account's webhook subscriptions (id, name, subscribed events, API version, creation time). Receiving URLs and signing secrets are not returned.

Booking, 2 operations

get_bookingGet bookingGETReturns one booking: subject, status, start time, duration, attendees, the booking form answers, UTM values and the owner, contact and conversation IDs.
list_bookingsList bookingsGETLists bookings in the account, newest first, 10 per page by default (max 100). Filter by status, owner, host, contact, booking calendar or date ranges. Page with after while has_more is true.

Booking calendar, 2 operations

get_booking_calendarGet booking calendarGETReturns one booking calendar: name, customer-facing subject, host, public booking URL, published flag and meeting duration in minutes.
list_booking_calendarsList booking calendarsGETLists the booking calendars in the account (name, subject, host, public booking URL, published flag, meeting duration). Filter by host; page with after while has_more is true.

Team, 2 operations

get_teamGet teamGETReturns one team: its id and name.
list_teamsList teamsGETLists the teams in the account (id and name). Pass user to list only the teams a user belongs to; page with after while has_more is true.

Cancel, 1 operation

cancel_bookingCancel bookingPOSTCancels a booking (status becomes canceled). Set send_cancellation_email to choose whether OnceHub emails the cancellation. Returns the updated booking with its cancel information.

No show, 1 operation

mark_booking_no_showMark booking no showPOSTMarks a booking as a no-show (status becomes no_show) and returns the updated booking.

Reassign, 1 operation

reassign_bookingReassign bookingPOSTReassigns a booking to another host: the original calendar event is deleted, a new one is created in the new host's calendar, and reassignment notifications are sent to guests and hosts.

Request reschedule, 1 operation

request_booking_rescheduleRequest booking reschedulePOSTAsks the customer to reschedule a booking: OnceHub cancels it and invites the customer to pick a new time. Returns the updated booking with its cancel / reschedule information.

Schedule, 1 operation

book_time_slotBook time slotPOSTBooks a meeting in a booking calendar for a guest, at a start_time taken from list_time_slots. This creates a real booking and OnceHub sends its usual booking notifications. Returns the new booking ID.

Scheduling availability, 1 operation

get_user_availabilityGet user availabilityGETReturns a user's scheduling availability: timezone, weekly working hours per day and date-specific overrides, with the location types offered in each slot (location values are withheld).

Sms, 1 operation

list_sms_notificationsList sms notificationsGETLists SMS notifications sent from the account, newest first, with delivery status, recipient ID and type, delivered-to number and segment count. Filter by recipient, recipient type or creation time.

Time slot, 1 operation

list_time_slotsList time slotsGETLists open time slots of a booking calendar (UTC start times and the location types offered), from start_time (default now) to end_time (default one week later, at most 30 days). Feed a slot to book_time_slot.

Use OnceHub from Claude Code, Cursor or Codex

Connect OnceHub in LiveContext, create an API key in Settings, then add the LiveContext MCP server to your client. Its OnceHub operations become tools the client can call, next to every other integration you connected.

Claude Code

claude mcp add --transport http livecontext https://livecontext.ai/mcp --header "X-API-Key: YOUR_API_KEY"

Codex (~/.codex/config.toml)

[mcp_servers.livecontext]
url = "https://livecontext.ai/mcp"

[mcp_servers.livecontext.http_headers]
"X-API-Key" = "YOUR_API_KEY"

Cursor, Claude Desktop and other JSON configs

{
  "mcpServers": {
    "livecontext": {
      "type": "http",
      "url": "https://livecontext.ai/mcp",
      "headers": {
        "X-API-Key": "YOUR_API_KEY"
      }
    }
  }
}

Set up the MCP server step by step

How to connect OnceHub

Create your workspace
Sign up free. Nothing to install.
Connect OnceHub once
Add your OnceHub connection in Settings. Every tool from this integration reuses it, and secrets are encrypted at rest and visible only to you.
Describe the job in chat
The workflow builds itself in front of you and picks the endpoints it needs. Drag the steps yourself on the canvas whenever you would rather be explicit.