Is the Oncehub MCP server free?

Yes. Activepieces is open source and free to start, and the MCP server is included on every plan, from the free cloud tier to any self-hosted deployment.

How do I connect Oncehub to Claude or Cursor?

Connect Oncehub in Activepieces, enable the server under Settings → MCP Server, then paste your server URL into your client config. It authenticates over OAuth on first use.

What can my agent do in Oncehub?

It can call 3 tools, including Find Contact, Create Contact, Custom API Call, and chain them with steps in other apps inside the same run.

Is it safe to let an agent call Oncehub?

Connections use OAuth2 with limited scopes and are stored under 256-bit encryption, with no API to read them back, so an agent gets scoped access rather than your keys.

Oncehub MCP server

Build meaningful on-brand scheduling experiences with OnceHubs online appointment booking software

Oncehub is not a separate install. One Activepieces MCP server exposes it alongside 760+ other apps, behind a single URL.

Start building See the Oncehub integration

Tools: 3
Works with: Any MCP client
Auth: API key
License: MIT, open source
Updated: September 2026

About the Oncehub MCP server

Connect Oncehub once in Activepieces and every action it ships becomes a tool your assistant can call, behind the same server URL as the rest of your apps. Your agent reaches Oncehub and 760+ other apps over a single connection, on our cloud or a self-hosted install.

Tools

Oncehub tools your AI can run

Once connected, your assistant can call any of these Oncehub actions by asking in plain language.

Find Contact
Search for contacts in Oncehub by various criteria
1 field
Create Contact
Create a new contact in Oncehub. Either email or mobile_phone is required.
16 fields
Custom API Call
Make a custom API call to a specific endpoint
10 fields

Triggers

Oncehub events your agent can watch

These start a run the moment something happens in Oncehub, so work gets picked up on its own.

Booking Canceled Then Rescheduled
Triggered when Customer cancels a booking and then reschedules on a different booking page.
Booking Canceled
Triggered when User or Customer cancels a booking
Booking Completed
Triggered when booking end time has passed.
Booking No-Show
Triggered when User sets the completed booking to No-show
Booking Rescheduled
Triggered when Customer reschedules a booking on the same booking page and Customer reschedules a booking following a request from the User to reschedule
Booking Scheduled
Triggered when Customer schedules a booking and when User approves a booking requested by a Customer
Conversation Abandoned
Triggered when website visitor stops interacting with a bot for more than 10 minutes.
Conversation Closed
Triggered when: Website visitor reaches the end of the conversation flow and when Website visitor starts a new conversation with a different chatbot
Conversation Started
Triggered when website visitor starts interacting with a chatbot.

Give your assistant Oncehub

Connect Oncehub once and every tool above is callable from Claude, Cursor or any MCP client, behind the same server URL as 760+ other apps. Free to start.

Get your server URL Talk to sales

Oncehub MCP, answered.

No. That is the point of it. One Activepieces server exposes Oncehub alongside every other piece you connect, so your client keeps a single connection.