Lokka

Lokka is a model-context-protocol server for the Microsoft Graph and Azure RM APIs that allows you to query and managing your Azure and Microsoft 365 tenants with AI.

Please see Lokka.dev for how to use Lokka with your favorite AI model and chat client.

Lokka lets you use Claude Desktop, or any MCP Client, to use natural language to accomplish things in your Azure and Microsoft 365 tenant through the Microsoft APIs.

e.g.:

• Create a new security group called 'Sales and HR' with a dynamic rule based on the department attribute.
• Find all the conditional access policies that haven't excluded the emergency access account
• Show me all the Intune device configuration policies assigned to the 'Call center' group
• What was the most expensive service in Azure last month?

Authentication Methods (Enhanced in v0.2.0)

Lokka now supports multiple authentication methods to accommodate different deployment scenarios:

1. Client Credentials (Service-to-Service)

Traditional app-only authentication using client credentials:

{
  "mcpServers": {
    "Lokka-Microsoft": {
      "command": "npx",
      "args": ["-y", "@merill/lokka"],
      "env": {
        "TENANT_ID": "<tenant-id>",
        "CLIENT_ID": "<client-id>",
        "CLIENT_SECRET": "<client-secret>"
      }
    }
  }
}

2. Interactive Authentication (New)

User-based authentication with interactive login:

{
  "mcpServers": {
    "Lokka-Microsoft": {
      "command": "npx",
      "args": ["-y", "@merill/lokka"],
      "env": {
        "TENANT_ID": "<tenant-id>",
        "CLIENT_ID": "<client-id>",
        "USE_INTERACTIVE": "true",
        "REDIRECT_URI": "http://localhost:3000"
      }
    }
  }
}

3. Client-Provided Token (New)

Token-based authentication where the MCP Client provides access tokens:

{
  "mcpServers": {
    "Lokka-Microsoft": {
      "command": "npx",
      "args": ["-y", "@merill/lokka"],
      "env": {
        "USE_CLIENT_TOKEN": "true"
      }
    }
  }
}

When using client-provided token mode:

1. Start the MCP server with USE_CLIENT_TOKEN=true
2. Use the set-access-token tool to provide a valid Microsoft Graph access token
3. Use the get-auth-status tool to verify authentication status
4. Refresh tokens as needed using set-access-token

New Tools (v0.2.0)

Token Management Tools

• set-access-token: Set or update access tokens for Microsoft Graph authentication
• get-auth-status: Check current authentication status and capabilities

Enhanced Microsoft Graph Tool

• Lokka-Microsoft: Now supports all three authentication modes with improved error handling and token management

Getting started

See the docs for more information on how to install and configure Lokka.

• Introduction
• Install guide
• Developer guide

Components

Tools

1. Lokka-Microsoft

   • Call Microsoft Graph & Azure APIs. Supports querying Azure and Microsoft 365 tenants. Updates are also supported if permissions are provided.
   • Input:
     • apiType (string): Type of Microsoft API to query. Options: 'graph' for Microsoft Graph (Entra) or 'azure' for Azure Resource Management.
     • path (string): The Azure or Graph API URL path to call (e.g. '/users', '/groups', '/subscriptions').
     • method (string): HTTP method to use (e.g., get, post, put, patch, delete)
     • apiVersion (string): Azure Resource Management API version (required for apiType Azure)
     • subscriptionId (string): Azure Subscription ID (for Azure Resource Management).
     • queryParams (string): Array of query parameters like $filter, $select, etc. All parameters are strings.
     • body (JSON): The request body (for POST, PUT, PATCH)
   • Returns: Results from the Azure or Graph API call.

2. set-access-token (New in v0.2.0)

   • Set or update an access token for Microsoft Graph authentication when using client-provided token mode.
   • Input:
     • accessToken (string): The access token obtained from Microsoft Graph authentication
     • expiresOn (string, optional): Token expiration time in ISO format
   • Returns: Confirmation of token update

3. get-auth-status (New in v0.2.0)

   • Check the current authentication status and mode of the MCP Server
   • Returns: Authentication mode, readiness status, and capabilities

Environment Variables

The configuration of the server is done using environment variables. The following environment variables are supported:

Name	Description	Required
TENANT_ID	The ID of the Microsoft Entra tenant.	Yes (except for client-provided token mode)
CLIENT_ID	The ID of the application registered in Microsoft Entra.	Yes (except for client-provided token mode)
CLIENT_SECRET	The client secret of the application registered in Microsoft Entra.	Yes (for client credentials mode only)
USE_INTERACTIVE	Set to "true" to enable interactive authentication mode.	No
USE_CLIENT_TOKEN	Set to "true" to enable client-provided token authentication mode.	No
REDIRECT_URI	Redirect URI for interactive authentication (default: http://localhost:3000).	No
ACCESS_TOKEN	Initial access token for client-provided token mode.	No

Contributors

• Interactive and Token-based Authentication (v0.2.0) - @darrenjrobinson

Installation

To use this server with the Claude Desktop app, add the following configuration to the "mcpServers" section of your claude_desktop_config.json:

{
  "mcpServers": {
    "Lokka-Microsoft": {
      "command": "npx",
      "args": ["-y", "@merill/lokka"],
      "env": {
        "TENANT_ID": "<tenant-id>",
        "CLIENT_ID": "<client-id>",
        "CLIENT_SECRET": "<client-secret>"
      }
    }
  }
}

Make sure to replace <tenant-id>, <client-id>, and <client-secret> with the actual values from your Microsoft Entra application. (See Install Guide for more details on how to create an Entra app and configure the agent.)