aac-invoke-auth is an Apache-2.0 Python package for signing and verifying sidecar-to-agent invoke-push requests with AAC1-HMAC-SHA256. It provides authentication primitives and FastAPI mounting surfaces for developers building agent authorization workflows.
In the Auth & identity space, aac-invoke-auth takes a focused approach. It focuses on authenticating and verifying sidecar-to-agent invoke-push requests. aac-invoke-auth is an open-source project aimed at developers building agent sidecars and FastAPI services. aac-invoke-auth is open source under the Apache-2.0 license. It runs on the command line and API, and it can be self-hosted.
CascadeAuth builds and maintains aac-invoke-auth, and it first shipped in 2026. Among its 5 catalogued features are HMAC signing, signature verification, and fastAPI mounting.
Summary written by a language model from the project’s public pages.
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