Know which service principal credentials are about to expire before they break something.

Service principals and app registrations in Entra ID rely on secrets and certificates that expire. When they do, automations stop, APIs fail, and background jobs go silent. Entra Credential Sentinel monitors your tenant and flags credentials approaching expiration so you can rotate them before they cause an outage.

Why it matters

Expired credentials cause silent failures in production.

Automations stop without warning

Background jobs and API integrations using service principal credentials fail silently when the secret expires. The first sign is usually a support ticket or a broken workflow, not a proactive alert.

Rotation is manual in most environments

Entra ID does not automatically rotate service principal secrets. Without monitoring, teams rely on calendar reminders or discover the problem only after something breaks.

Multiple credentials complicate tracking

Applications often have multiple secrets and certificates with different expiry dates. Tracking each one across dozens of app registrations is error-prone without automation.

Security policy requires timely rotation

Compliance frameworks expect credential rotation within defined intervals. Expired credentials indicate a gap in operational security hygiene that auditors will flag.

Built with

Microsoft Graph API, read-only, tenant-scoped.

Microsoft Graph Entra ID Credential monitoring Service principals Certificate tracking Open source

FAQ

Common questions about Entra Credential Sentinel.

It monitors service principal and application credential expiry dates in Microsoft Entra ID and flags credentials that are approaching expiration, already expired, or have not been rotated within policy.
When a service principal's secret or certificate expires, any application or automation relying on that credential stops working. This causes production outages in automated workflows, API integrations, and background services.
Yes. Entra Credential Sentinel is open source and free to use under its license on GitHub.

Built by Orygn

Entra Credential Sentinel is one of several identity security tools Orygn has published.

Orygn builds custom software, security tooling, and identity-focused systems. This tool is part of a broader set of open-source Entra ID utilities for tenant hygiene and operational reliability.

View on GitHub