How to connect Microsoft Bookings with ChatGPT

Connect ChatGPT to Microsoft Bookings MCP. List upcoming microsoft bookings appointments, create a new microsoft bookings customer, and more using natural language, with authentication handled for you.

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Microsoft Bookings is Microsoft's shared scheduling service for businesses, appointments, customers, services, and staff. It helps teams manage availability and bookings in one place through Microsoft Graph.

35 Tools

How to connect Microsoft Bookings MCP with ChatGPT

ChatGPT can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers.

In this guide, I will explain the easiest and most secure way to connect your Microsoft Bookings account to ChatGPT via Composio Connect, so it can list booking businesses, manage appointments, update customers, organize services, and review staff through natural language commands without ever putting your account credentials at risk.

Also integrate Microsoft Bookings with

Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Microsoft Bookings integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,500+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account. We will use the ChatGPT desktop app, and the steps are the same on the web.
  • Access to the Microsoft Bookings workspace you want to connect.
  • Composio plugin.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect Microsoft Bookings to ChatGPT

1. Install the Composio plugin

Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.

Install in ChatGPT

Composio plugin page in ChatGPT with the Install plugin button

You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin.

2. Authenticate

After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account.

Composio login and Allow access screen for ChatGPT

3. Start using Composio

That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread Microsoft Bookings messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize Microsoft Bookings.

Option 2: Add Composio as an MCP server

If you cannot use the plugin marketplace, add Composio as a custom MCP server instead.

1. Open the MCP settings

In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate on the Composio entry, log in via Composio, and click Allow access. Composio tools are then available in ChatGPT the same way as with the plugin.

What you can do after connecting Microsoft Bookings

  • List upcoming Microsoft Bookings appointments
  • Create a new Microsoft Bookings customer
  • Update Microsoft Bookings service availability

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
TOOLS

Supported Tools

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

Cancel Appointment

Irreversibly cancel an appointment and ask Microsoft Bookings to send the supplied cancellation message to its customers and staff.

Create Appointment

Create an appointment for a service at explicit start and end times, optionally assigning staff and customer details.

Create Booking Business

Create a shared booking business with the supplied display name.

Create Customer

Create a saved customer in one booking business with structured contact details.

Create Custom Question

Create a text or single-choice intake question for one booking business.

Create Service

Create a bookable service with a name and default duration, optionally configuring location, price, staff, reminders, questions, and scheduling rules.

Create Staff Member

Add a staff member to one booking business with a role, email, time zone, and optional working schedule.

Delete Appointment

Permanently delete an appointment without invoking Microsoft Bookings' cancellation-message action.

Delete Booking Business

Permanently delete one shared booking business and all of its Microsoft Bookings data.

Delete Customer

Permanently delete one saved customer from a Microsoft Bookings business.

Delete Custom Question

Permanently delete one custom intake question from a booking business.

Delete Service

Permanently delete one service from a Microsoft Bookings business.

Delete Staff Member

Permanently remove one staff member from a Microsoft Bookings business.

Get Appointment

Get one booking appointment, including its service, customers, assigned staff, attendee counts, and UTC start and end times.

Get Booking Business

Get the complete configuration and publication state of one shared booking business.

Get Booking Currency

Get one Microsoft Bookings currency by its ISO currency code.

Get Customer

Get one saved customer and their contact details from a booking business.

Get Custom Question

Get one custom intake question, including its answer type and available choices.

Get Service

Get one service and its duration, pricing, staff, questions, reminders, location, and scheduling configuration.

Get Staff Member

Get one booking staff member's identity, role, membership state, time zone, working hours, and calendar settings.

List Appointments

List one Microsoft Graph page of appointments for a booking business.

List Booking Businesses

List shared booking businesses visible to the connected work or school account.

List Booking Currencies

Return one Microsoft Graph page of the Microsoft Bookings currency catalog with ISO currency IDs and localized symbols.

List Customers

List saved customers for one booking business, one Microsoft Graph page at a time.

List Custom Questions

List custom intake questions defined for one booking business, one Microsoft Graph page at a time.

List Services

List services offered by one booking business, including duration, pricing, staff, and scheduling defaults, one Microsoft Graph page at a time.

List Staff Members

List staff members configured for one booking business, including roles and working hours, one Microsoft Graph page at a time.

Publish Booking Business

Publish a booking business's external scheduling page so customers can access it.

Unpublish Booking Business

Take a booking business's external scheduling page offline and clear its public URL without deleting the business.

Update Appointment

Update an existing appointment's schedule, attendees, service, staff, location, notifications, or pricing without cancelling it.

Update Booking Business

Update supported contact details, hours, currency, business type, address, or scheduling rules without publishing or unpublishing the business.

Update Customer

Update a saved customer's name, email, phone numbers, or postal addresses in one booking business.

Update Custom Question

Update the text, answer type, or choices of one custom intake question.

Update Service

Update a service's name, duration, location, pricing, staff, reminders, questions, visibility, or scheduling rules.

Update Staff Member

Update a booking staff member's identity, role, time zone, working schedule, calendar behavior, or email notifications.

FAQ

Frequently asked questions

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

Yes, you can. ChatGPT 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 Microsoft Bookings tools.

Yes, absolutely. You can configure which Microsoft Bookings 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 Microsoft Bookings data and credentials are handled as safely as possible.

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