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Microsoft Outlook Calendar is Microsoft’s scheduling and calendar service. The Outlook Calendar MCP server lets you view, create, update, and manage calendar events using natural language.

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What Can It Do?

  • List calendars and browse events across time ranges
  • Create and update events with attendees, locations, and Teams meetings
  • Delete events to keep your schedule clean
  • Check availability for one or more users to find free time slots

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Where to Use It

Add Outlook Calendar as a tool to any agent. The agent can then manage your calendar conversationally, choosing the right actions based on context. To add an MCP tool to your agent:
  1. Open your agent’s configuration
  2. Click Add tools → Connect an app with MCP
  3. Search for the integration and select it
  4. Authenticate with your account
You can control which tools your agent has access to. After adding an integration, click on it to enable or disable specific tools based on what your agent needs.

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In Workflows (Via Agent Node)

For automated pipelines, use an Agent Node with Outlook Calendar tools. This gives you the flexibility of an agent within a deterministic workflow.

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As a Custom MCP Node

You can also create a standalone MCP node for a specific action. This generates a reusable node that performs one task, useful when you need the same operation repeatedly in workflows.
To create a custom MCP node:
  1. Go to your node library and search for the integration
  2. Click Create a node with AI
  3. Describe the specific action you want (e.g., “List my events for this week”)
  4. Test the node and save it for reuse
Custom MCP nodes are single-purpose by design. For tasks that require multiple steps or dynamic decision-making, use an agent instead.

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Available Tools

ToolDescription
List CalendarsList all calendars for the authenticated user
List EventsList events from a calendar for a specified time range
Get EventGet details of a specific calendar event
Create EventCreate a new event with attendees, location, and Teams meeting support
Update EventUpdate an existing calendar event
Delete EventDelete an event from a calendar
Check AvailabilityCheck free/busy availability for one or more users

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Example Prompts

Use these with your agent or in the Agent Node: List events: 
Show me my calendar events for this week
Create an event: 
Schedule a team meeting tomorrow at 2pm for 1 hour with john@company.com and jane@company.com, include a Teams link
Check availability: 
Check when john@company.com and jane@company.com are both free this Thursday afternoon
Update an event: 
Move my 3pm meeting to 4pm and add a conference room
Delete an event: 
Cancel my meeting with the design team on Friday

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Troubleshooting

IssueSolution
Agent not finding the right dataUse specific event subjects or date ranges
Action not completingCheck that you’ve authenticated with Microsoft 365
Unexpected resultsThe agent may chain multiple tools (e.g., listing events first, then updating). Review the agent’s reasoning to understand its approach.
Tool not availableVerify the tool is enabled in your agent’s MCP configuration
Agents are smart enough to chain multiple API calls together. For example, asking “Reschedule my meeting with John to next week” will find the event first, then update it. If results seem off, check the agent’s step-by-step reasoning.

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Need Help?

Use this integration directly in Claude or Cursor. Connect remotely via the Outlook Calendar MCP server using your Gumloop credentials.