MSAL
MSAL, short for Microsoft Authentication Library, is a family of libraries from Microsoft that enables applications to authenticate users and obtain tokens from the Microsoft identity platform. It provides a consistent, cross‑platform API for acquiring access tokens and ID tokens to call protected resources such as Microsoft Graph or your own web APIs secured by Azure Active Directory (Azure AD) or Microsoft accounts. MSAL supersedes the older ADAL library and aligns with the v2.0 endpoints, supporting OpenID Connect and OAuth 2.0 flows.
MSAL implements authentication flows appropriate to each platform, including the authorization code flow with PKCE for
MSAL is available for multiple languages and platforms, including .NET, JavaScript, Java, Python, Android, iOS, macOS,
Key benefits include a uniform API across platforms, built‑in token caching, refresh token handling, and alignment