// SCAN REPORT

Microsoft Graph MCP Server

19 tools. 8 can modify or destroy data without limits.

2 destructive tools with no built-in limits. Policy required.

Last updated: 12 Jun 2026

8 can modify or destroy data

11 read-only

19 tools total

Community server · catalogue entry verified 12/06/2026

How to control Microsoft Graph MCP Server ↓

TOOL MAP

What Microsoft Graph MCP Server exposes to your agents

Read (11) Write / Execute (5) Destructive / Financial (2)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

Critical Risk

The most dangerous Microsoft Graph MCP Server tools

Destructive · Critical manage_emails This tool includes irreversible deletion actions (delete_single, delete_multiple, delete_all) that can permanently remove emails. Destructive · High manage_mail_folder This tool supports 'delete' operations on mail folders, which is irreversible — deleting a mail folder can permanently remove all contained emails and subfolders. Write · Medium manage_event_as_attendee The tool modifies calendar state and sends emails, which are Write operations. Write · High manage_event_as_organizer While the tool modifies calendar state and sends communications to attendees, these actions are reversible.

8 of Microsoft Graph MCP Server's 19 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control Microsoft Graph MCP Server

PolicyLayer is an MCP gateway — it sits between your AI agents and Microsoft Graph MCP Server, and nothing reaches the server without passing your rules. These are the rules we recommend:

Deny destructive operations

{
  "manage_emails": {
    "deny_if": [
      {
        "conditions": [],
        "on_deny": "Blocked by default. Requires approval."
      }
    ]
  }
}

Destructive tools should never be available to autonomous agents without human approval.

Rate limit write operations

{
  "manage_event_as_attendee": {
    "limits": [
      {
        "counter": "manage_event_as_attendee_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "browse_email_cache": {
    "limits": [
      {
        "counter": "browse_email_cache_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Microsoft Graph MCP Server — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON MICROSOFT GRAPH →

Free to start. No card required.

FULL CATALOGUE

All 19 Microsoft Graph MCP Server tools

DESTRUCTIVE 2 tools

Destructive manage_emails Manage emails with multiple actions. Supports moving, deleting, archiving, flagging, and categorizing emails. Destructive manage_mail_folder Manage mail folders. Supports list, create, delete, rename, get_details, and move operations. Returns: {succes

WRITE 5 tools

Write manage_event_as_attendee Manage calendar events where you are an attendee (events organized by others). Actions: accept, decline, tenta Write manage_event_as_organizer Manage calendar events where you are the organizer (events you created). Actions: create, update, cancel, forw Write manage_templates Manage email templates stored as drafts in a Templates folder. Templates are draft emails that can be edited a Write send_email Send emails directly without creating drafts. Supports three actions: Write user_settings Manage user settings with two actions:

READ 11 tools

Read browse_email_cache Browse emails in the cache with pagination. Returns summary information with number column indicating position Read browse_events Browse calendar events in the cache with pagination. Returns summary information with number column indicating Read check_attendee_availability Check availability of attendees for a given date. WORKFLOW: Typically use before calling manage_my_event with Read get_email_content Get full email content by cache number. Use the cache number from browse_email_cache (e.g., 1, 2, 3) to retrie Read get_event_detail Get detailed information for a specific calendar event by its cache number. WORKFLOW: First call browse_events Read get_team_channels Get channels for a specific Team. WORKFLOW: team_id comes from get_teams tool output. Returns: Array of channe Read get_teams Get list of Teams that you are a member of. WORKFLOW: Use returned team_id with get_team_channels. Returns: Ar Read list_files List files and folders in OneDrive. Returns: Array of file/folder objects with id, name, type (file/folder), s Read search_contacts FIND PEOPLE/CONTACTS ONLY. Search for people by name or email address in organization directory. Returns conta Read search_emails SEARCH EMAIL MESSAGES ONLY. Search or list email messages by keywords, sender, subject, or body. Returns match Read search_events Search or list calendar events by keywords. Returns matching events with summary information. If no query is p

OTHER 1 tools

Other auth Manage authentication with Microsoft Graph. Four simple actions:\n\n

FAQ

Questions about Microsoft Graph MCP Server

Can an AI agent delete data through the Microsoft Graph MCP Server MCP server? +

Yes. The Microsoft Graph MCP Server server exposes 2 destructive tools including manage_emails, manage_mail_folder. These permanently remove resources with no undo. PolicyLayer blocks destructive tools by default so they never reach the upstream server.

How do I prevent bulk modifications through Microsoft Graph MCP Server? +

The Microsoft Graph MCP Server server has 5 write tools including manage_event_as_attendee, manage_event_as_organizer, manage_templates. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Microsoft Graph MCP Server.

How many tools does the Microsoft Graph MCP Server MCP server expose? +

19 tools across 2 categories: Read, Write. 11 are read-only. 8 can modify, create, or delete data.

How do I enforce a policy on Microsoft Graph MCP Server? +

Register the Microsoft Graph MCP Server MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Microsoft Graph MCP Server tool call.

Deterministic rules across all 19 Microsoft Graph MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON MICROSOFT GRAPH →

Free to start. No card required.

19 Microsoft Graph MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.