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Connect Microsoft Outlook Calendar to Claude Cowork

Give Claude Cowork governed access to Microsoft Outlook Calendar’s 23 tools through Runlayer, with identity, policy, scanning, and audit on every call.

Book a demo Claude Cowork setup guide

Set up

Add Microsoft Outlook Calendar to Claude Cowork in four steps

Admins approve the server once. Everyone in Claude Cowork then gets it through the same governed connection.

  1. 1

    Approve Microsoft Outlook Calendar in Runlayer

    Add Microsoft Outlook Calendar from the catalog and choose who can use it and which of its tools are allowed.

  2. 2

    Connect Claude Cowork to Runlayer

    Claude Cowork gets connector tools through the Runlayer Plugin. With direct tool listing turned on for your deployment, Microsoft Outlook Calendar’s 23 tools show up in Claude Cowork’s own tool list.

    Claude Cowork setup guide
  3. 3

    Sign in to Microsoft Outlook Calendar

    Sign in the way Microsoft Outlook Calendar requires. Runlayer holds the credentials so they stay out of the client’s configuration.

  4. 4

    Use Microsoft Outlook Calendar from Claude Cowork

    Microsoft Outlook Calendar’s approved tools appear in Claude Cowork. Every call is checked against policy and recorded.

Tools

23 Microsoft Outlook Calendar tools in Claude Cowork

Runlayer policy decides which of these Claude Cowork users can call. 5 read data only and 2 can change or delete data.

  • Calendar accept event

    Accept an event invitation on the signed-in user's calendar.

  • Calendar cancel event

    Cancel an event the signed-in user organized and notify the attendees.

  • Calendar create event

    Create a new event on the signed-in user's primary calendar.

  • Calendar decline event

    Decline an event invitation on the signed-in user's calendar.

  • Calendar delete event

    Delete an event from the signed-in user's calendar.

  • Calendar find meeting times

    Suggest meeting times based on attendee availability.

  • Calendar get event

    Fetch a single calendar event by id.

  • Calendar get schedule

    Fetch free/busy information for one or more users, distribution lists, or resources (rooms/equipment).

See all 23 Microsoft Outlook Calendar tools

Control

What Runlayer can see and stop in Claude Cowork

Some controls apply to every client at the gateway. Others depend on what Claude Cowork exposes to Runlayer.

  • Gateway policy (available)

    Every Microsoft Outlook Calendar call from Claude Cowork passes through Runlayer, where your policies can allow, alert, mask, or block it.

  • Audit trail (available)

    Each call is recorded with the user, Claude Cowork as the client, the tool, and the policy and scanner decisions.

  • Anthropic inference hooks (available)

    Anthropic Inference hooks let Runlayer check Claude Cowork prompts before inference.

  • OTLP telemetry (available)

    Claude Cowork can send supported OpenTelemetry events to Runlayer for observe-only session visibility.

  • Stop a call before it runs (available)

    Runlayer can reject a Claude Cowork prompt before Anthropic runs it, which stops the whole request rather than one tool call.

  • Block output after it runs (available)

    Because Runlayer checks the full prompt, tool results in it can be blocked before the model sees them.

  • Redact output in place (not available)

    Runlayer cannot mask content in Claude Cowork. The gateway still applies policy to the call.

In Claude Cowork

  • Cowork session data sent over OpenTelemetry is for monitoring only and cannot stop anything.

Frequently asked questions

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