Glossary
Agent identity
Agent identity is defined here as follows. An identity created for an agent so access policy, risk checks, and audit logs can apply to it. Microsoft Entra Agent ID creates these identities from blueprints. The directory source for this term is Overview of agent identities in Microsoft Entra.
Last verified 2026-10-17
Sources
Listings
Directory listings whose sources describe this mechanism.
| Name | Status | Category | Open source | Mechanism |
|---|---|---|---|---|
| Agent Network Protocol | Beta | Protocols | Yes | Protocol suite whose 1.2 release covers agent identity, naming, description, and discovery, with DID authentication for did:wba and did:web. Authorization and payment specs are still drafts, and group end to end encryption is a candidate. identity, discovery, did |
| AGNTCY | Live | Protocols | Yes | Open stack, hosted by the Linux Foundation, for cross vendor agent discovery, identity, messaging, and observability. discovery, identity, messaging |
| ERC-8004 | Designed | Identity and trust | Yes | Draft Ethereum proposal for three registries: an ERC-721 identity that points at an agent registration file, a reputation registry, and a validation registry. registries, reputation, ethereum |
| Microsoft Entra Agent ID | Live | Identity and trust | No | Identity platform that creates agent identities from blueprints and applies Entra access policy, risk checks, and audit logs to them. enterprise, oauth, audit |
| Skyfire | Live | Payment rails | No | Issues signed KYAPay tokens that bind an agent identity to a payment the buyer has committed, which the seller charges after delivery. wallets, identity, kya |
| Visa Trusted Agent Protocol | Live | Identity and trust | No | Visa specification for merchants to verify an approved agent from an RFC 9421 HTTP message signature bound to the site and the action, with optional consumer and payment identifiers. Visa reports live agent purchases at European merchants through it and its Agent Directory. http-signatures, merchants, cards, agent-verification |
Questions
- What is Agent identity?
- An identity created for an agent so access policy, risk checks, and audit logs can apply to it. Microsoft Entra Agent ID creates these identities from blueprints.
- Which listings use Agent identity?
- Agent Network Protocol, AGNTCY, ERC-8004, Microsoft Entra Agent ID, Skyfire, Visa Trusted Agent Protocol.
- When was Agent identity last verified?
- Last verified 2026-10-17.