Agent SSO

What is Agent SSO?

Agent SSO is an identity framework that extends traditional Single Sign-On (SSO) concepts to autonomous AI agents. By giving these digital workers a first-class identity at an enterprise Identity Provider (IdP)—the central system that manages user logins—organizations can treat software agents with the same security rigor as human employees. Instead of relying on static, long-lived API keys that are easily lost or stolen, this framework issues short-lived, identity-governed tokens. This ensures that an agent’s access to sensitive data is always verified, temporary, and tied to a specific, authenticated identity.

The Digital Valet Analogy

Think of a traditional API key like a master key to your office building. If you give that key to a contractor, they have permanent, unrestricted access, and if they lose it, anyone who finds it can walk right in. Agent SSO acts more like a digital valet service. When your large language model-powered agent needs to perform a task, it doesn’t get a master key. Instead, it presents your credentials to the valet, who verifies who you are and then issues a temporary, single-use pass that only opens the specific door the agent needs to enter for that one task.

How It Works: The Two-Step Flow

The framework utilizes a two-step authentication process to ensure security. It is built on the open Cross App Access (XAA) protocol, which is formally specified as the Identity Assertion JWT Authorization Grant (ID-JAG). First, there is User-to-Agent Authentication, where the user logs in via OpenID Connect (OIDC) or SAML, establishing that the human is authorized to act on behalf of the agent. Second, the agent performs Agent-to-Resource Authentication, trading the identity token for short-lived, narrowly scoped access tokens that grant permission only to the specific resources required for the task.

MCP Authorization Extension (EMA)

Agent SSO implements the Cross App Access (XAA) protocol, which serves as the official MCP authorization extension (EMA – Enterprise-Managed Authorization). This positions XAA/ID-JAG as the standardized enterprise identity layer for AI-agent tool and MCP-server access. The EMA mechanism is built from three standard pieces: an OIDC or SAML login, an RFC 8693 token exchange that produces the ID-JAG, and an RFC 7523 JWT bearer grant redeemed at the MCP server’s authorization server. This integration allows enterprise administrators to govern MCP server access via existing groups and policies without requiring per-user consent screens.

SAML Support

Agent SSO supports SAML in addition to OIDC for the initial authentication step. This enables organizations with existing SAML-based SSO implementations to adopt Agent SSO without requiring migration to OIDC. SAML-based login requires an extra hop at the IdP where the SAML assertion is exchanged for a refresh token before the ID-JAG token exchange can proceed. This support is protocol-defined and not IdP-vendor-specific, meaning any compliant IdP can participate.

Ecosystem Expansion and Launch Partners

Agent SSO has seen significant ecosystem expansion with 25+ launch partners, including Anthropic (Claude), Slack, Zoom, Atlassian (Rovo MCP), Asana, Canva, Cloudflare, Cursor, Datadog, Docker, Figma, Glean, Linear, Supabase, VS Code, WorkOS, and Keycloak. This broad support ensures that developers and enterprises can integrate Agent SSO across a wide variety of tools and platforms.

Auth0 B2B Early Access and OIN Integration

The ecosystem continues to grow with the introduction of Auth0 B2B early access, allowing ISVs and developers to build or consume secure XAA flows via the Auth0 XAA Beta Program. Furthermore, Workforce GA via the Okta Integration Network (OIN) allows Okta Workforce Identity customers to discover and use XAA applications. The OIN submission process for ISVs requires an existing OIDC or SAML SSO integration, successful token exchange testing, and a manual enablement request.

Agent SSO vs. Okta for AI Agents

Agent SSO is the foundational identity layer that registers agents as first-class identities in a directory, allowing administrators to manage agent policy through the same consoles used for human staff. In contrast, Okta for AI Agents is a distinct service offering designed for environments requiring broader compatibility. It extends support to agents that do not utilize the Cross App Access protocol and provides supplementary governance and monitoring controls for more complex enterprise deployments.

Why It Matters for Responsible AI

Many organizations currently struggle to apply consistent security controls to their automated systems. By standardizing how agents identify themselves, organizations can better implement responsible AI practices. This framework allows for better AI alignment with corporate security policies and makes it easier to enforce guardrails that prevent agents from accessing unauthorized data.

Sources and Further Reading

• Okta Press Release: Okta Brings First-Class Identity to AI Agents
• IETF Technical Specification: Identity Assertion JWT Authorization Grant (ID-JAG)
• MCP Enterprise-Managed Authorization: Enterprise-Managed Authorization
• Okta Developer Blog: Submit XAA Integrations to OIN