How to integrate Microsoft Bookings MCP with Atomic Agent

Connect Atomic Agent 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

Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Microsoft Bookings.

This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Microsoft Bookings account. See the Atomic Agent documentation for installation instructions.

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How Atomic Agent connects to Microsoft Bookings

Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.

Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

Connect Microsoft Bookings to Atomic Agent

  1. Sign up or sign in to the Composio dashboard. Copy your API key.
  2. In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
  3. Ask Atomic Agent to do something in Microsoft Bookings. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Microsoft Bookings account, then return to Atomic Agent to continue.

Headless setup

Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY

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

The Microsoft Bookings MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Microsoft Bookings account. It provides structured and secure access to booking businesses, appointments, customers, services, staff members, and currencies, so your agent can schedule appointments, manage services and staff, update customer details, and publish or manage booking pages on your behalf.

  • Appointment scheduling and updates: Have your agent create appointments for specific services and times, assign staff and customers, update appointment details, or cancel and delete appointments.
  • Booking business management: Let the agent create, update, and review booking businesses, then publish or unpublish their external scheduling pages.
  • Service and availability setup: Direct your agent to create, update, and list bookable services, including their duration, location, pricing, staff assignments, reminders, and scheduling rules.
  • Customer and staff administration: Instruct your agent to add, update, view, list, or remove customers and staff members, including contact details, roles, time zones, and working schedules.
  • Booking questions and currencies: Have your agent manage custom intake questions and review the available Microsoft Bookings currency catalog for your scheduling business.

Use Microsoft Bookings from Atomic Agent

With your account connected, ask Atomic Agent to work with Microsoft Bookings in natural language. You can connect more apps through the same Composio integration as you need them.

Visit the Atomic Agent website or inspect the Atomic Agent source code.

Troubleshooting

Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.

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. Atomic Agent 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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