Entra Agent Registry: The Corporate Yellow Pages for AI Agents

Entra.Chat

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Entra Agent Registry: The Corporate Yellow Pages for AI Agents

Enabling Secure Agent-to-Agent Collaboration

Merill Fernando

Jan 16, 2026

Service principals worked for static apps, but AI agents are different—they make autonomous decisions using LLMs and require a new approach to identity and security.

In this episode of Entra Chat, Padma Parthasarathy, Product Manager for Microsoft Entra Agent Registry, explains why Microsoft created Entra Agent Registry and Agent ID, and how they provide identity, governance, and security for AI agents.

We cover agent collections, discovery policies, integration with identity protection, and how custom security attributes automate AI agent governance at scale. You’ll also see how agents discover other agents by skills, how global and quarantine collections control visibility, and why these capabilities are critical for enterprise AI security.

This is a must-watch (listen) for identity, security, and platform architects preparing for AI at scale.

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About Padma

With close to 20 years of experience in Identity, Security, and enterprise platforms, Padma Prasad Parthasarathy currently leads product and architecture for Security for AI and Agent Identity at Microsoft. He has built and scaled IAM and Zero Trust solutions across some of the world’s largest organizations, bridging deep technical expertise with real-world product impact.

LinkedIn - https://www.linkedin.com/in/padmaprasadp/