Vaara
Apache 2.0 Python library intercepting AI agent tool calls with hash-chained audit logs for EU AI Act Articles 12 and 14.
Vaara is an open-source (Apache 2.0) Python library that intercepts AI agent tool calls, scores each with a conformal risk interval, and writes a hash-chained audit record aligned to EU AI Act Article 12 (record-keeping) and Article 14 (human oversight). Zero runtime dependencies, no SaaS, no telemetry. Native integrations with LangChain, CrewAI, OpenAI Agents SDK, and MCP servers. OVERT 1.0 envelope signing for offline verification by external auditors. Listed in the GenAI-Gurus awesome-eu-ai-act catalogue.
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