EntraID MCP Server (Microsoft Graph FastMCP)

This project provides a modular, resource-oriented FastMCP server for interacting with Microsoft Graph API. It is designed for extensibility, maintainability, and security, supporting advanced queries for users, sign-in logs, MFA status, and privileged users.

Features

• Modular Resource Structure:
  • Each resource (users, sign-in logs, MFA, etc.) is implemented in its own module under src/msgraph_mcp_server/resources/.
  • Easy to extend with new resources (e.g., groups, devices).
• Centralized Graph Client:
  • Handles authentication and client initialization.
  • Shared by all resource modules.
• Comprehensive User Operations:
  • Search users by name/email.
  • Get user by ID.
  • List all privileged users (directory role members).
• Full Group Lifecycle & Membership Management:
  • Create, read, update, and delete groups.
  • Add/remove group members and owners.
  • Search and list groups and group members.
• Application & Service Principal Management:
  • List, create, update, and delete applications (app registrations).
  • List, create, update, and delete service principals.
  • View app role assignments and delegated permissions for both applications and service principals.
• Sign-in Log Operations:
  • Query sign-in logs for a user for the last X days.
• MFA Operations:
  • Get MFA status for a user.
  • Get MFA status for all members of a group.
• Password Management:
  • Reset user passwords directly with custom or auto-generated secure passwords.
  • Option to require password change on next sign-in.
• Permissions Helper:
  • Suggest appropriate Microsoft Graph permissions for common tasks.
  • Search and explore available Graph permissions.
  • Helps implement the principle of least privilege by recommending only necessary permissions.
• Error Handling & Logging:
  • Consistent error handling and progress reporting via FastMCP context.
  • Detailed logging for troubleshooting.
• Security:
  • .env and secret files are excluded from version control.
  • Uses Microsoft best practices for authentication.

Project Structure

src/msgraph_mcp_server/
├── auth/           # Authentication logic (GraphAuthManager)
├── resources/      # Resource modules (users, signin_logs, mfa, ...)
│   ├── users.py            # User operations (search, get by ID, etc.)
│   ├── signin_logs.py      # Sign-in log operations
│   ├── mfa.py              # MFA status operations
│   ├── permissions_helper.py # Graph permissions utilities and suggestions
│   ├── applications.py       # Application (app registration) operations
│   ├── service_principals.py # Service principal operations
│   └── ...                 # Other resource modules
├── utils/          # Core GraphClient and other ultilities tool, such as password generator..
├── server.py       # FastMCP server entry point (registers tools/resources)
├── __init__.py     # Package marker

Usage

1. Setup

• Clone the repo.
• Create a config/.env file with your Azure AD credentials:
  Code

  Copy

  TENANT_ID=your-tenant-id
  CLIENT_ID=your-client-id
  CLIENT_SECRET=your-client-secret
  

• (Optional) Set up certificate-based auth if needed.

2. Testing & Development

You can test and develop your MCP server directly using the FastMCP CLI:

fastmcp dev '/path/to/src/msgraph_mcp_server/server.py'

This launches an interactive development environment with the MCP Inspector. For more information and advanced usage, see the FastMCP documentation.

3. Available Tools

User Tools

• search_users(query, ctx, limit=10) — Search users by name/email
• get_user_by_id(user_id, ctx) — Get user details by ID
• get_privileged_users(ctx) — List all users in privileged directory roles
• get_user_roles(user_id, ctx) — Get all directory roles assigned to a user
• get_user_groups(user_id, ctx) — Get all groups (including transitive memberships) for a user

Group Tools

• get_all_groups(ctx, limit=100) — Get all groups (with paging)
• get_group_by_id(group_id, ctx) — Get a specific group by its ID
• search_groups_by_name(name, ctx, limit=50) — Search for groups by display name
• get_group_members(group_id, ctx, limit=100) — Get members of a group by group ID
• create_group(ctx, group_data) — Create a new group (see below for group_data fields)
• update_group(group_id, ctx, group_data) — Update an existing group (fields: displayName, mailNickname, description, visibility)
• delete_group(group_id, ctx) — Delete a group by its ID
• add_group_member(group_id, member_id, ctx) — Add a member (user, group, device, etc.) to a group
• remove_group_member(group_id, member_id, ctx) — Remove a member from a group
• add_group_owner(group_id, owner_id, ctx) — Add an owner to a group
• remove_group_owner(group_id, owner_id, ctx) — Remove an owner from a group

Group Creation/Update Example:

• group_data for create_group and update_group should be a dictionary with keys such as:
  • displayName (required for create)
  • mailNickname (required for create)
  • description (optional)
  • groupTypes (optional, e.g., ["Unified"])
  • mailEnabled (optional)
  • securityEnabled (optional)
  • visibility (optional, "Private" or "Public")
  • owners (optional, list of user IDs)
  • members (optional, list of IDs)
  • membershipRule (required for dynamic groups)
  • membershipRuleProcessingState (optional, "On" or "Paused")

See the groups.py docstrings for more details on supported fields and behaviors.

Sign-in Log Tools

• get_user_sign_ins(user_id, ctx, days=7) — Get sign-in logs for a user

MFA Tools

• get_user_mfa_status(user_id, ctx) — Get MFA status for a user
• get_group_mfa_status(group_id, ctx) — Get MFA status for all group members

Device Tools

• get_all_managed_devices(filter_os=None) — Get all managed devices (optionally filter by OS)
• get_managed_devices_by_user(user_id) — Get all managed devices for a specific user

Conditional Access Policy Tools

• get_conditional_access_policies(ctx) — Get all conditional access policies
• get_conditional_access_policy_by_id(policy_id, ctx) — Get a single conditional access policy by its ID

Audit Log Tools

• get_user_audit_logs(user_id, days=30) — Get all relevant directory audit logs for a user by user_id within the last N days

Password Management Tools

• reset_user_password_direct(user_id, password=None, require_change_on_next_sign_in=True, generate_password=False, password_length=12) — Reset a user's password with a specific password value or generate a secure random password

Permissions Helper Tools

• suggest_permissions_for_task(task_category, task_name) — Suggest Microsoft Graph permissions for a specific task based on common mappings
• list_permission_categories_and_tasks() — List all available categories and tasks for permission suggestions
• get_all_graph_permissions() — Get all Microsoft Graph permissions directly from the Microsoft Graph API
• search_permissions(search_term, permission_type=None) — Search for Microsoft Graph permissions by keyword

Application Tools

• list_applications(ctx, limit=100) — List all applications (app registrations) in the tenant, with paging
• get_application_by_id(app_id, ctx) — Get a specific application by its object ID (includes app role assignments and delegated permissions)
• create_application(ctx, app_data) — Create a new application (see below for app_data fields)
• update_application(app_id, ctx, app_data) — Update an existing application (fields: displayName, signInAudience, tags, identifierUris, web, api, requiredResourceAccess)
• delete_application(app_id, ctx) — Delete an application by its object ID

Application Creation/Update Example:

• app_data for create_application and update_application should be a dictionary with keys such as:
  • displayName (required for create)
  • signInAudience (optional)
  • tags (optional)
  • identifierUris (optional)
  • web (optional)
  • api (optional)
  • requiredResourceAccess (optional)

Service Principal Tools

• list_service_principals(ctx, limit=100) — List all service principals in the tenant, with paging
• get_service_principal_by_id(sp_id, ctx) — Get a specific service principal by its object ID (includes app role assignments and delegated permissions)
• create_service_principal(ctx, sp_data) — Create a new service principal (see below for sp_data fields)
• update_service_principal(sp_id, ctx, sp_data) — Update an existing service principal (fields: displayName, accountEnabled, tags, appRoleAssignmentRequired)
• delete_service_principal(sp_id, ctx) — Delete a service principal by its object ID

Service Principal Creation/Update Example:

• sp_data for create_service_principal and update_service_principal should be a dictionary with keys such as:
  • appId (required for create)
  • accountEnabled (optional)
  • tags (optional)
  • appRoleAssignmentRequired (optional)
  • displayName (optional)

Example Resource

• greeting://{name} — Returns a personalized greeting

Extending the Server

• Add new resource modules under resources/ (e.g., groups.py, devices.py).
• Register new tools in server.py using the FastMCP @mcp.tool() decorator.
• Use the shared GraphClient for all API calls.

Security & Best Practices

• Never commit secrets: .env and other sensitive files are gitignored.
• Use least privilege: Grant only the necessary Microsoft Graph permissions to your Azure AD app.
• Audit & monitor: Use the logging output for troubleshooting and monitoring.