NIST’s AI Agent Standards Initiative: Why Public Identity Matters
An agent can have permission to act inside a company's systems and still be difficult for anyone outside that company to identify.
A customer who finds your agent in a directory shouldn't have to guess whether it's yours. They need to know who operates it and which address is official. The credentials your company issued may settle questions about internal access, but they won't necessarily answer those questions for a stranger.
NIST's AI Agent Standards Initiative is examining agent authentication and identity infrastructure. For those of us building services that others will encounter across the web, there's a public side to that work worth discussing: how will someone establish that they've found your agent?
What NIST is examining
On February 17, 2026, NIST announced an initiative supporting industry-led agent standards, open protocols and research into agent security and identity. The aim is to help agents work reliably across different systems. NIST's announcement makes interoperability central to that effort.
An agent retrieving customer records needs more than a working connection. The receiving system needs to establish who's asking and whether the request is allowed. The initiative's research agenda includes authentication and identity infrastructure for human-agent and multi-agent interactions.
The related NCCoE concept paper starts with enterprise environments where organizations can maintain control and visibility. It examines existing identity approaches, including OAuth, OpenID Connect and workload identity, alongside questions about delegation and accountability. External agents from untrusted sources are outside the initial scope. The concept paper explains that boundary on pages 6–8.
An organization may already know its approved agents well. A prospective customer starts with much less information.
A customer needs to find the right service
Suppose a supplier runs an agent that answers questions about product availability. The company knows who maintains it and has limited which inventory data it can read.
A customer finds the service through a directory and follows its documentation to an API address. Before connecting their own software, they want to establish that this is the supplier's actual service. Fair enough.
The supplier could give the agent a persistent public name, with a record identifying the operator and pointing to the official interface and evidence of control. The directory and documentation could point back to that identity. If the API moves, the supplier can update the record while keeping the name.
Now the customer has a consistent place to begin checking. The supplier's access controls still decide which inventory records that customer may retrieve.
The customer gets a name they can return to, even when the service's address changes.
Where public naming fits alongside access controls
NIST's work does not establish that every agent needs a domain. A company can manage an internal agent through its existing identity systems. The case for public naming becomes stronger when customers, partners or other agents need to recognize the service across different interfaces.
A persistent naming and discovery layer can connect that public identity to information about the operator's credentials, permissions and lifecycle controls. It can point to authentication instructions, policy documents and current service status. The systems relying on those references must verify the relevant claims and enforce access themselves.
That's where we see Headless Domains contributing to the wider identity discussion: helping people and software find the service's public record and the information needed to inspect it.
We explain how these parts work together in the Agent Identity Stack guide.
The supplier still has to back up its claims
Someone else could publish a profile claiming to be the supplier's inventory agent. Writing a convincing description is easy. The customer needs something they can verify.
The customer needs evidence connecting the named service to the supplier and its official endpoint. Proof of control over a name can support that investigation, but it does not, by itself, prove a company affiliation or permission to access private inventory.
The same distinction applies when the service stops operating. A public record marked "retired" helps a customer avoid an obsolete interface. The operator must also revoke the credentials and access grants in the systems that issued them. Our agent identity security guide covers those responsibilities.
Keeping those records accurate is part of operating the service. An abandoned profile leaves the customer guessing again.
What builders can take from NIST's initiative
NIST's initiative gives builders a reason to examine their own identity setup. It does not endorse Headless Domains, Handshake or a particular extension. As of September 9, 2026, the NCCoE project is reviewing comments on its concept paper; the paper is not a finalized implementation standard.
Headless Domains provides names and machine-readable records for agents and other software-operated services. Its public API contract describes the resolver as a read-only identity and action-discovery interface. It does not authorize or execute the actions it describes.
For our supplier, the benefit is straightforward. Customers can keep referring to the same name while the operator updates the service behind it and maintains its access controls.
Try looking at your agent as a customer would. Start with its directory listing or documentation and follow the links. Can you establish who operates it and which interface is current? If that takes guesswork, give people a public name that leads back to records you maintain.
Get started with a Headless Domains identity for the software you operate.