THE PERMISSION [LAYER]

Tools · Agent identity & NHI

AI agent identity and non-human identity (NHI) tools

These products manage AI agents as identities: each agent, like other non-human identities (NHI) such as service accounts and API keys, is tied to a named human owner and scoped permissions, and several of the products replace stored keys with short-lived credentials. Many also find the agents and keys already in use and record which agent acted for which person. A team needs one when agents reach company systems through shared service accounts or long-lived keys, because then no log can say which agent did what, and no single agent can be cut off without breaking the others.

14 tools from 13 vendors. 3 with a recent launch. Last updated October 20, 2026. Part of the AI agent governance tools directory.

Agent identity & NHI 14

Recent launches

Announced in the last 90 days. Each launch on New tools links the vendor's own announcement.

Questions to ask vendors

Neutral questions for a request for proposal (RFP) or a security questionnaire. No product here is named as the answer.

  1. Does each agent get its own identity and credential, or do agents share service accounts under the hood?

    Why it matters

  2. Are credentials short-lived and automatically rotated, or static keys that live until someone remembers them?

    Why it matters

  3. Is every identity assigned a human owner, and is that ownership recorded somewhere we can query?

    Why it matters

  4. When an agent acts for a user, does the log capture both the agent and the user it acted on behalf of?

    Why it matters

  5. How fast can we revoke one agent's access without touching any other agent?

    Why it matters

  6. When an agent acts on behalf of a user, is its effective access the intersection of its own permissions and that user's?

    If the agent's access is broader than the user's, injected content can use the agent's authority to do what the user never could. This is the confused deputy problem.

    Why it matters

More questions, grouped by topic: Questions to ask AI agent security vendors.

Related incidents

Every record in the AI agent incident database links the sources that reported it.

Missing a product, or found an entry that is out of date? Write to [email protected]. A submission is read, never paid for, and does not guarantee a listing. The glossary defines the terms used here.

The Permission Layer

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