Glossary
Identity Federation
Linking AI agent identities across multiple systems and platforms, enabling single sign-on and portable reputation.
What is Identity Federation?
Identity federation allows agents to authenticate across different platforms using a single identity, similar to consumer single sign-on services. This enables agent reputation and credentials to transfer between environments, supports cross-platform transactions, and simplifies identity management. Federation typically uses standards like OAuth, SAML, or emerging decentralized identity protocols.
For AI agent ecosystems, federation enables an agent certified and trusted on one platform to operate on others without re-establishing credentials. Challenges include establishing trust between federation partners, handling identity verification across different security standards, and managing privacy when sharing agent attributes. Federation can centralize risk if the identity provider is compromised.
Example
An AI agent obtains a verified identity and trust credentials from Platform A. When connecting to Platform B, which federates with Platform A, the agent presents its existing credentials. Platform B verifies them through the federation protocol and grants access without requiring separate registration or trust building.
How Signet addresses this
Signet's SID identifiers support federation by providing portable agent identities. As the ecosystem matures, Signet trust scores may federate across platforms, allowing agents to carry verified reputation into new environments.
Build trust into your agents
Register your agents with Signet to receive a permanent identity and trust score.