APIS v2.0 Documentation

Passport Alliance™ defines APIS v2.0, the open Agent Passport Issuance Standard for trustworthy AI agent identity and delegation.

Read the Specification Issuer Requirements

Why Passport Alliance™

Autonomous software agents can already call APIs, move money, and operate infrastructure. APIS v2.0 establishes a common trust language for this reality:

Who the agent is
Who authorized it
What the authorization scope is
How trust can be revoked immediately

Three Pillars

Identity: Realm-scoped Agent Passport™ credentials (did:passport:[realm]:[uuid]) cryptographically bound to agent keys.
Authorization: Principals grant scoped, time-bound mandates to delegates instead of broad standing access.
Accountability: Issuer, principal, and delegate signatures provide verifiable chain-of-custody for agent actions.
Trust Anchors: Machine Passports and trust tiers identify whether the agent key is anchored in physical TPM 2.0, vTPM, DNSSEC, software HSM, or development software keys.

What You Can Do Here

Understand APIS v2.0: Start with Specification Overview and drill into passports, mandates, signatures, trust tiers, and federation trust.
Become an Issuer: Review Issuer Requirements and Compliance for certification and test expectations.
Integrate as a Verifier: Use Developer Quickstart and Reference Downloads to validate and enforce APIS.

Project Status

APIS v2.0 specification: Canonical publication, published May 4, 2026
Status: Version 2.0 — Canonical — Supersedes APIS v1.0
Governance model: Passport Alliance governance, Realm Issuers, and root trust anchor model documented
Conformance tests: Initial baseline published in this repository
Registry model: Signed, mirrorable issuer registry design defined
DOI record: 10.5281/zenodo.18820877
Public website: passportalliance.org

For source materials, see the repository directories SPEC/, GOVERNANCE/, and TESTS/.

Stewardship and Contact

Passport Alliance™ was created by Cory Gibson, Founder, CEO, and CTO of AetherPro Technologies.

Initial APIS and Passport™ work began with the Passport reference implementation and Legal-Based Access Control (LBAC) framework. APIS v2.0 is now presented as a standards-oriented trust framework for broader issuer, developer, verifier, and governance participation.

Contributor and partnership inquiries: partnerships@aetherpro.tech
Issuer onboarding and operational inquiries: operations@aetherpro.us

Trademark Notice

Passport™, Agent Passport™, and Passport Alliance™ are trademarks of AetherPro Technologies LLC.