Exploring AAuth for Agent Identity and Access Management (IAM)

This blog post by Christian Posta provides a hands-on demonstration of AAuth (Agent Auth, pronounced “AY-awth”), an IETF OAuth working group draft specification for agent identity and access management, authored by Dick Hardt (co-author of OAuth 2.0/2.1). The post introduces two resource access modes: (1) Identity-based – an agent asserts its identity with a non-bearer aa-agent+jwt token (issued by an Agent Provider) that the resource verifies and applies local policy; (2) Three-party (PS-managed) – the resource issues a 401 challenge with an aa-resource+jwt, the agent exchanges it at its Person Server for an aa-auth+jwt auth token, then retries the request. The demo includes a full working implementation with an AAuth Person Server (also acting as Agent Provider), Agentgateway (policy enforcement point), an Envoy ExtAuthz service that turns any resource into an AAuth resource, and Python/Go libraries. All source code is available on GitHub. The recommended starting point is the AAuth Protocol Explorer for step-by-step request/response details. The post positions AAuth as a critical building block for agent identity in AI-driven systems.

https://blog.christianposta.com/aauth-full-demo/

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