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Action State launches open-source tools to verify AI agent transactions

Action State Group offers EvidenceBook, Terms Packs and Countersign to let companies audit AI agent actions without a central authority.

NoteBy Published by Oossa: 1 min read

Startup Action State Group released a set of open-source tools for businesses to independently verify what AI agents did. The suite includes EvidenceBook, which creates tamper‑evident transaction logs, Terms Packs that evaluate whether agent work meets defined rules, and Countersign, a free verification service that signs off on evidence bundles. The tools work offline and can be used even if only one party installs the software. Early adopters include the Mesh‑LLM distributed inference network and the Project Nanda initiative.

Why it matters

Compliance teams can now audit AI‑driven transactions across company borders without relying on a single party’s records.

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