Validate managed identity configuration and RBAC assignment coverage.
Last verified: May 2026
Output will appear here...The checker maintains a curated table of {Azure service, supports system-assigned MSI, supports user-assigned MSI, supports federated credentials, notable limitations} drawn from Azure's documentation. You select a service from the list and the tool returns its identity support along with linked docs for setup steps. Bulk mode lets you paste a list of services to check at once.
The Azure Managed Identity Checker lets you verify which Azure services support system-assigned and user-assigned managed identities. Managed identities eliminate the need for credential management by providing Azure AD tokens to your services automatically. This tool provides a searchable reference of service support, identity types available, and any limitations, helping you plan secure authentication strategies without embedding secrets in your applications.
Your team is migrating from service principals stored in Key Vault to managed identities for all Azure-to-Azure auth. The checker reveals that 18 of 22 services support user-assigned MSI directly, but Azure DevTest Labs and Azure Maps don't yet support managed identities at all (as of audit date). You implement managed identities for the 18 services, leaving service principal credentials in Key Vault for the 2 holdouts. Audit-time savings: 3 days vs hand-checking each service's docs.
Always prefer system-assigned identities for resources where the identity should disappear when the resource does. Forgetting to clean up user-assigned identities is one of the most common Azure 'mystery resource' findings during cost audits — orphan identities don't cost money but clutter the directory.
User-assigned identities are mandatory if you want zero-downtime resource recreation. System-assigned identity disappears when the resource is recreated (e.g., during a managed-identity-bootstrapped Key Vault role assignment migration), breaking access. User-assigned identities persist across resource lifecycle changes.
The federated identity credential feature (formerly 'workload identity federation') extends managed identities to GitHub Actions, AWS workloads, and Kubernetes clusters via OIDC trust. This is the path for 'managed identities everywhere' — even for workloads outside Azure. The checker flags whether your services support federated credentials in addition to native MSI.
A system-assigned identity is tied to a specific Azure resource and shares its lifecycle -- when the resource is deleted, the identity is deleted too. A user-assigned identity is a standalone Azure resource that can be attached to multiple services, giving you more flexibility and control over the identity lifecycle.
Managed identities provide Microsoft Entra ID (Azure AD) tokens. They work directly with Azure services that accept Entra ID authentication. For non-Azure services, you can use the managed identity to retrieve secrets from Key Vault and then authenticate to the external service with those credentials.
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