It provides a portable transaction model that binds identity, authority, policy, and evidence into one system, designed to complement existing standards like OAuth, OIDC, and SPIFFE without replacing them, with domain-specific profiles for commerce and real-world assets.
Open Agent Trust Infrastructure (OATI) is an open standard by Intelliger for identifying enterprise agents, expressing short-lived delegated authority, enforcing transaction constraints, and producing verifiable action receipts across organisational boundaries.
An API credential can show that an agent may connect. OATI describes who owns the agent, on whose authority it acts, what it may do now, and what evidence proves the transaction.
https://intelliger.ai/oatihttps://intelliger.ai/oati/lookuphttps://api.intelliger.ai/oati/v1Enterprise controls are split across identity providers, gateways, policy engines, data platforms, contracts, payments, and audit systems. A valid token alone does not reveal the responsible organisation, current delegated purpose, downstream data restrictions, commercial authority, or mutually verifiable evidence.
OATI binds those concerns into one portable transaction model:
Verified organisation + Agent Passport + short-lived Mandate
+ Transaction Envelope + deterministic decision
+ signed Action Receipt
OATI complements OAuth, OIDC, SPIFFE, AuthZEN, Cedar, OPA, MCP, and A2A. It does not replace them.
| Object | Answers |
|---|---|
| Agent Passport | Who is this agent, who operates it, and how is that claim verified now? |
| Agent Mandate | What exact authority was delegated, by whom, for what purpose, and until when? |
| Transaction Envelope | What action, resource, destination, context, and proof are being evaluated? |
| Authorisation Decision | Was the transaction allowed, denied, transformed, or sent for approval—and under which policy? |
| Action Receipt | What happened, under which authority and controls, and what signed evidence can be checked later? |
The central invariant is non-amplification: a delegated Mandate may preserve or reduce authority, but it must never silently expand it.
OATI profiles add strict domain semantics while preserving the same core identity, authority, policy, and evidence model.
The first Commerce workflow lets an enterprise agent p
Open Agent Trust Infrastructure (OATI) — an open standard for verifiable AI agent identity, delegated authority, policy enforcement, and signed action receipts.
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