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How to connect Scheduleonce to Claude

Connect Claude Web, Desktop and Cowork to Scheduleonce MCP. Book a meeting with john doe, list all upcoming bookings this week, and more using natural language, with authentication handled for you.

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Scheduleonce is a scheduling platform for capturing, qualifying, and engaging with inbound leads. It streamlines appointment booking and follow-ups for faster lead conversion.

27 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Scheduleonce account to Claude via Composio Connect, enabling it to book a meeting with John Doe, list all upcoming bookings this week, cancel tomorrow's meeting with client, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Scheduleonce with

OpenAI Agents SDKClaude Agent SDKClaude CodeCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Scheduleonce to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Scheduleonce account

Back in Claude, ask it to connect to Scheduleonce or give it any Scheduleonce-related task.

For example, ask Claude to:

  • "Book a meeting with John Doe"
  • "List all upcoming bookings this week"
  • "Cancel tomorrow's meeting with client"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Scheduleonce account is ready to use.

What is the Scheduleonce Claude Connector, and what's possible with it?

The Scheduleonce MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Scheduleonce account. It provides structured and secure access so your agent can perform Scheduleonce operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for Scheduleonce?

The connector can show as connected, but Claude must use it in each Scheduleonce conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Scheduleonce again.

2. Why does Claude show an MCP server error before Scheduleonce connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Scheduleonce.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Scheduleonce.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Scheduleonce authorization link not work?

The Composio connector is one server. Your Scheduleonce account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Scheduleonce connection.
  • Composio creates a fresh Scheduleonce authorization link.
  • Open that link in your browser and finish the Scheduleonce sign-in.

4. Why do Scheduleonce actions fail after they worked before?

The Scheduleonce connection can expire or lose permission.

  • Ask Claude to inspect the Scheduleonce connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Scheduleonce account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Scheduleonce.
  • If the action still fails with a permission error, check that the connected account has that permission in Scheduleonce itself.

5. How do I switch to a different Scheduleonce account?

Claude can manage the Scheduleonce connection for you.

  • Ask Claude to disconnect or delete the current Scheduleonce account.
  • Ask Claude to connect Scheduleonce again.
  • Open the new Composio authorization link for Scheduleonce.
  • Sign in with the other Scheduleonce account in the browser.
  • After the account connects, ask Claude to retry the Scheduleonce task.

6. Why is my Scheduleonce connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Scheduleonce connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Scheduleonce tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Scheduleonce.
TOOLS

Supported Tools

Every Scheduleonce action and event your agent gets out of the box.

Book Time Slot

Tool to book a time slot on a booking calendar in OnceHub.

Cancel Booking

Tool to cancel a booking by ID in OnceHub.

Create Contact

Tool to create a new contact in ScheduleOnce.

Create One-Time Link for Booking Calendar

Tool to create a one-time booking link for a booking calendar in OnceHub.

Create User

Tool to create a new user account in OnceHub.

Delete Contact

Tool to delete a contact by ID from OnceHub.

Delete User

Tool to delete a user account from OnceHub.

Get Available Time Slots

Tool to retrieve available time slots for a booking calendar from OnceHub.

Get Single Booking

Tool to retrieve a single booking by ID from OnceHub.

Get Single Booking Calendar

Tool to retrieve a single booking calendar by ID from OnceHub.

Get Single Contact

Tool to retrieve a single contact by ID from OnceHub.

Get Single Master Page

Tool to retrieve a single master page by ID from OnceHub.

Get Single User

Tool to retrieve a single user by ID from OnceHub.

Get User Scheduling Availability

Tool to get user scheduling availability from OnceHub.

List All Booking Calendars

Tool to list all booking calendars in the account.

List All Booking Pages

Tool to list all booking pages in the account.

List All Bookings

Tool to list all bookings in the account.

List All Contacts

Tool to list all contacts in the OnceHub account.

List All Event Types

Tool to list all event types in the account.

List All Master Pages

Tool to list all master pages in the account.

List All Teams

Tool to list all teams in the OnceHub account.

List All Users

Tool to list all users in the OnceHub account.

Mark Booking as No-Show

Tool to mark a completed booking as no-show in OnceHub.

Test API Key

Tool to validate API key authentication for OnceHub.

Update Contact

Tool to update an existing contact in ScheduleOnce.

Update User

Tool to update an existing user in OnceHub.

Update User Scheduling Availability

Tool to update user scheduling availability in OnceHub.

FRAMEWORKS

How to build Scheduleonce MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Scheduleonce MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Scheduleonce MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Scheduleonce MCP with Claude Code

Codex logo

Codex

Use Scheduleonce MCP with Codex

OpenClaw logo

OpenClaw

Use Scheduleonce MCP with OpenClaw

Hermes logo

Hermes

Use Scheduleonce MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Scheduleonce MCP with Atomic Agent

Google ADK logo

Google ADK

Use Scheduleonce MCP with Google ADK

LangChain logo

LangChain

Use Scheduleonce MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Scheduleonce MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Scheduleonce MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Scheduleonce MCP with LlamaIndex

CrewAI logo

CrewAI

Use Scheduleonce MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Scheduleonce MCP with Pydantic AI

AutoGen logo

AutoGen

Use Scheduleonce MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Scheduleonce MCP server, the agents and LLMs can only access a fixed set of Scheduleonce tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Scheduleonce and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Scheduleonce tools.

Yes, absolutely. You can configure which Scheduleonce scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Scheduleonce data and credentials are handled as safely as possible.

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