Shadow AI Agent Governance

Know Your Agent (KYA) extends identity and policy checks to AI agents at the moment of consequence, returning signed authorisation evidence before payments, exports, or privileged tool calls execute.

Shadow AI is routine in 2026: employees use more AI tools than IT registries show. Blocking alone pushes experimentation to personal devices and unmanaged API keys. Security teams need authorisation gates at the action boundary with evidence, not blanket bans.

What security teams search for

• Inventory of MCP servers, agent frameworks, and autonomous tools in production.
• Evidence that high-risk actions (payments, data export, privileged API calls) were explicitly authorised.
• Tamper-evident audit suitable for SOC 2, EU AI Act, and internal risk committees.
• Know Your Agent (KYA) patterns that extend IAM to non-human actors.

OWASP Agentic AI and MCP context

Agentic systems introduce tool misuse, excessive agency, and prompt injection at the action layer. API keys authenticate the client, not the autonomous decision. KYA gates evaluate policy per action and return signed allow or deny with Merkle reference.

Governance checklist

1. Catalogue MCP servers and agent tools with owners and data classification.
2. Define which actions require explicit authorisation before execution.
3. Gate tool calls, payments, and exports at the boundary, not only at login.
4. Return signed proof with Merkle audit for SOC and regulator replay.
5. Offer sanctioned paths so teams do not route around blocks on unmanaged devices.
6. Connect agents via MCP connector or REST SDK.

AffixIO approach

Gate tool calls, payments, and data exports before execution. Return signed proof with Merkle reference. Read agent authorisation and agent auth vs API keys.

Frequently asked questions

Should we block all unsanctioned AI?

Blocking alone often increases shadow use on unmanaged devices. Pair policy with authorised paths.

Does KYA replace human IAM?

It extends identity to non-human actors at the moment of consequence.

Should we block all unsanctioned AI?

Blocking alone often increases shadow use. Pair policy with authorised paths and proof.

Does KYA replace human IAM?

It extends identity to non-human actors at the moment of consequence.

How does MCP fit?

AffixIO hosts Proof by AffixIO MCP with prove, verify, Merkle, and QR tools.

Can agents initiate payments?

Yes, with agentic payment gates that return signed allow or deny before funds move.

What about OWASP Agentic Top 10?

Authorisation gates address excessive agency and tool misuse at execution time.