How to connect Calendarhero to Claude Cowork

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Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your Calendarhero account to Cowork via Composio Connect, enabling it to schedule a meeting with your project team, list all meetings I have this week, fetch details for your next scheduled meeting, and more such actions on your behalf without compromising your account security.

Also integrate Calendarhero with

Connecting Calendarhero to Claude Cowork

1. Open Customize

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

2. Add the Composio MCP server

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

3. 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 Cowork

4. Connect your Calendarhero account

Back in Cowork, ask the agent to connect to Calendarhero or give it any Calendarhero-related task.

For example, ask Cowork to:

  • "Schedule a meeting with your project team"
  • "List all meetings I have this week"
  • "Fetch details for your next scheduled meeting"

It will prompt you to authenticate and authorize access.

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

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like Calendarhero through MCP without you sharing account credentials directly with the agent.

What is the Calendarhero MCP server, and what's possible with it?

The Calendarhero MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Calendarhero account. It provides structured and secure access to your calendar management tools, so your agent can schedule meetings, manage contacts, fetch meeting details, and access your calendar integrations on your behalf.

  • Automated meeting scheduling and requests: Easily have your agent schedule new meetings, select participants, set time ranges, and include extra meeting details in just a few steps.
  • Contact creation and management: Let the agent create new contacts or fetch existing ones, so scheduling is always quick and accurate.
  • Meeting details retrieval: Ask your agent to fetch specific meeting details or get a list of all meetings within a defined timeframe, keeping you up-to-date.
  • Access and manage calendar integrations: Direct your agent to list all connected calendars, add new integrations, or access available calendars for streamlined scheduling.
  • Template and meeting type discovery: Quickly retrieve available meeting templates and types, letting your agent optimize scheduling based on your preferences and routines.

Supported Tools & Triggers

Tools
Add Calendar ConnectionAdd a new calendar directory/connection to the user's CalendarHero account.
Create ContactCreates a new contact in CalendarHero with the provided contact information.
Create Meeting Request V2Tool to create a new meeting request in CalendarHero.
Create WebhookCreates or updates a webhook for a specific event type in CalendarHero.
Delete ContactTool to delete a contact from CalendarHero by its unique identifier.
Delete Meeting TaskTool to delete a meeting task/request from CalendarHero.
Delete Meeting TypeTool to delete a meeting type from the authenticated user's CalendarHero account.
Delete User DirectoryTool to delete a user directory by its UUID.
Delete WebhookTool to delete a webhook subscription for a specific event type.
Fetch ContactFetch Contact
Fetch Meeting DetailsTool to fetch details for meetings within a specified timeframe.
Fetch User ProfileTool to fetch the profile details of the authenticated user.
Get Assistant MessageTool to retrieve a reply message from the CalendarHero assistant.
Get Contact CountTool to get the total count of contacts in CalendarHero.
Get Meeting CategoriesRetrieves the user's meeting categories' stats for a specified time period.
Get Meeting TasksRetrieves the user's meeting requests/tasks from CalendarHero.
Get Search ResultTool to get a search result by ID.
Get User DirectoryTool to retrieve a user's directory by its unique identifier.
Get User OrganizationTool to retrieve the authenticated user's organization details.
Get User SavingsTool to retrieve the authenticated user's savings information from CalendarHero.
Get Webhook ConfigurationTool to get webhook configuration for a specific event type.
Get Webhook SampleTool to retrieve a sample webhook payload for a specific event type.
List Meeting TemplatesRetrieves all meeting templates (reusable meeting configurations) for the authenticated user.
List Meeting TypesRetrieves all meeting types configured for the authenticated CalendarHero user.
List User CalendarsTool to list all calendar integrations connected to a user's CalendarHero account.
List User DirectoriesTool to retrieve all directories configured for a user.
Search ContactTool to search for existing contacts.
Search IntegrationsTool to search across all user integrations for a query term.
Send Assistant MessageTool to send a user's message into the CalendarHero assistant.
Send ReminderSends an email reminder to all contacts/participants about a scheduled meeting request.
Update ContactUpdates an existing contact in CalendarHero with new information.
Update Meeting TypesTool to update meeting type configurations for the authenticated CalendarHero user.
Update Restricted AppsTool to update the authenticated user's restricted apps settings.
Update UserTool to update the authenticated user's profile information.
Update User AddressTool to update the authenticated user's address settings by providing latitude and longitude coordinates.
Update User DirectoryTool to update a user's directory in CalendarHero.
Update User InfoUpdates the authenticated user's info settings in CalendarHero.
Update Work LocationTool to update the user's work location settings in CalendarHero.

How to build Calendarhero MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Calendarhero MCP?

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

Can I use Tool Router MCP with Claude Cowork?

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 Calendarhero tools.

Can I manage the permissions and scopes for Calendarhero while using Tool Router?

Yes, absolutely. You can configure which Calendarhero 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.

How safe is my data with Composio Tool Router?

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 Calendarhero data and credentials are handled as safely as possible.

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