🎯

entra-app-registration

🎯Skill

This skill helps you register your app with Microsoft Entra ID, Microsoft's sign-in service. It guides you step by step so users can sign in and your app can safely access Azure resources.

microsoft/azure-skills593,578 InstallsAdded Mar 4, 2026

Installation

$npx skills add microsoft/azure-skills --skill entra-app-registration

Run it in a terminal; it asks which AI coding tools to install it for (Claude Code, Codex, Cursor and more).

Uses skills.sh · Node.js 22.20+

After installing

Ask for related work and the agent uses it on its own, or call it yourself.

Run it (Claude Code)/entra-app-registration

Install by hand

Copy the whole skill folder from GitHub to the place below. Copying only SKILL.md can leave out files the skill uses.

Open the skill folder →

This project .claude/skills/entra-app-registration/
All projects ~/.claude/skills/entra-app-registration/

These paths are for Claude Code. For other tools, the command above puts it in the right place.

📦Same repositorymicrosoft/azure-skills (51 items)

What this skill does

Overview

Microsoft Entra ID (formerly Azure Active Directory) is Microsoft's cloud service for sign-in and access control. This skill guides you through five steps: register the app, set up sign-in, add API permissions (which services and data your app may use), create client credentials (the app's own password or certificate), and add the sign-in flow to your code. That flow uses OAuth 2.0, a standard way for apps to get sign-in and permission, and MSAL, Microsoft's library for adding it to code.

Key Features

Register an app in the Azure portal, with Azure CLI commands such as az ad app create, or with a Bicep file (a file that describes Azure setup as code).
Choose sign-in settings for your app type: web app, single page app, mobile or desktop app, or background service.
Add API permissions such as User.Read and request only the access your app needs.
Create a client secret or certificate and store it safely, for example in Key Vault, Azure's storage for secrets.
Follow example code for a console app that signs users in with MSAL in .NET, Python or JavaScript.

Who is this for?

Use it when you add Microsoft sign-in to a web, mobile or console app, especially for your first app registration. It also helps when a background service must call an API without a user, or when your team wants to manage app registrations in code files.

Summarized by AI from this skill's SKILL.md. Suggest a better one

SKILL.md

View on GitHub →

Guides Microsoft Entra ID app registration, OAuth 2.0 authentication, and MSAL integration. USE FOR: create app registration, register Azure AD app, configure OAuth, set up authentication, add API permissions, generate service principal, MSAL example, console app auth, Entra ID setup, Azure AD authentication. DO NOT USE FOR: Key Vault secrets (use azure-keyvault-expiration-audit), general Azure resource security guidance.

Overview

Microsoft Entra ID (formerly Azure Active Directory) is Microsoft's cloud-based identity and access management service. App registrations allow applications to authenticate users and access Azure resources securely.

Key Concepts

Concept	Description
App Registration	Configuration that allows an app to use Microsoft identity platform
Application (Client) ID	Unique identifier for your application
Tenant ID	Unique identifier for your Azure AD tenant/directory
Client Secret	Password for the application (confidential clients only)
Redirect URI	URL where authentication responses are sent
API Permissions	Access scopes your app requests
Service Principal	Identity created in your tenant when you register an app

Application Types

Type	Use Case
Web Application	Server-side apps, APIs
Single Page App (SPA)	JavaScript/React/Angular apps
Mobile/Native App	Desktop, mobile apps
Daemon/Service	Background services, APIs

Core Workflow

Step 1: Register the Application

Create an app registration in the Azure portal or using Azure CLI.

Portal Method:

Navigate to Azure Portal → Microsoft Entra ID → App registrations
Click "New registration"
Provide name, supported account types, and redirect URI
Click "Register"

CLI Method: See references/cli-commands.md IaC Method: See references/BICEP-EXAMPLE.bicep

It's highly recommended to use the IaC to manage Entra app registration if you already use IaC in your project, need a scalable solution for managing lots of app registrations or need fine-grained audit history of the configuration changes.

Step 2: Configure Authentication

Set up authentication settings based on your application type.

Web Apps: Add redirect URIs, enable ID tokens if needed
SPAs: Add redirect URIs, enable implicit grant flow if necessary
Mobile/Desktop: Use http://localhost or custom URI scheme
Services: No redirect URI needed for client credentials flow

Step 3: Configure API Permissions

Grant your application permission to access Microsoft APIs or your own APIs.

Common Microsoft Graph Permissions:

User.Read - Read user profile
User.ReadWrite.All - Read and write all users
Directory.Read.All - Read directory data
Mail.Send - Send mail as a user

Details: See references/api-permissions.md

Step 4: Create Client Credentials (if needed)

For confidential client applications (web apps, services), create a client secret, certificate or federated identity credential.

Client Secret:

Navigate to "Certificates & secrets"
Create new client secret
Copy the value immediately (only shown once)
Store securely (Key Vault recommended)

Certificate: For production environments, use certificates instead of secrets for enhanced security. Upload certificate via "Certificates & secrets" section.

Federated Identity Credential: For dynamically authenticating the confidential client to Entra platform.

Step 5: Implement OAuth Flow

Integrate the OAuth flow into your application code.

See:

references/oauth-flows.md - OAuth 2.0 flow details
references/console-app-example.md - Console app implementation

Common Patterns

Pattern 1: First-Time App Registration

Walk user through their first app registration step-by-step.

Required Information:

Application name
Application type (web, SPA, mobile, service)
Redirect URIs (if applicable)
Required permissions

Script: See references/first-app-registration.md

Pattern 2: Console Application with User Authentication

Create a .NET/Python/Node.js console app that authenticates users.

Required Information:

Programming language (C#, Python, JavaScript, etc.)
Authentication library (MSAL recommended)
Required permissions

Example: See references/console-app-example.md

Pattern 3: Service-to-Service Authentication

Set up daemon/service authentication without user interaction.

Required Information:

Service/app name
Target API/resource
Whether to use secret or certificate

Implementation: Use Client Credentials flow (see references/oauth-flows.md#client-credentials-flow)

MCP Tools and CLI

Azure CLI Commands

Command	Purpose
`az ad app create`	Create new app registration
`az ad app list`	List app registrations
`az ad app show`	Show app details
`az ad app permission add`	Add API permission
`az ad app credential reset`	Generate new client secret
`az ad sp create`	Create service principal

Complete reference: See references/cli-commands.md

Microsoft Authentication Library (MSAL)

MSAL is the recommended library for integrating Microsoft identity platform.

Supported Languages:

.NET/C# - Microsoft.Identity.Client
JavaScript/TypeScript - @azure/msal-browser, @azure/msal-node
Python - msal

Examples: See references/console-app-example.md

Security Best Practices

Practice	Recommendation
Never hardcode secrets	Use environment variables, Azure Key Vault, or managed identity
Rotate secrets regularly	Set expiration, automate rotation
Use certificates over secrets	More secure for production
Least privilege permissions	Request only required API permissions
Enable MFA	Require multi-factor authentication for users
Use managed identity	For Azure-hosted apps, avoid secrets entirely
Validate tokens	Always validate issuer, audience, expiration
Use HTTPS only	All redirect URIs must use HTTPS (except localhost)
Monitor sign-ins	Use Entra ID sign-in logs for anomaly detection

SDK Quick References

Azure Identity: Python | .NET | TypeScript | Java | Rust
Key Vault (secrets): Python | TypeScript
Auth Events: .NET

References

OAuth Flows - Detailed OAuth 2.0 flow explanations
CLI Commands - Azure CLI reference for app registrations
Console App Example - Complete working examples
First App Registration - Step-by-step guide for beginners
API Permissions - Understanding and configuring permissions
Troubleshooting - Common issues and solutions

External Resources

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