Fact0

Fact0 is an audit layer specifically designed for AI agents and autonomous systems. It provides cryptographically secure logging of every tool execution, input parameter, and output result with detailed origin attributes. The system creates mathematically provable audit trails that show exactly what permissions AI agents used, what data was accessed, and when human intervention occurred.

The platform uses SHA-256 chaining to create tamper-evident histories that third-party auditors can verify without accessing the original database. Each event links cryptographically to the previous one, making any alterations immediately detectable. Fact0 includes an AI assistant called Spotlight that lets users ask natural language questions about audit logs, failed runs, PII access, and chain integrity, with deep links to relevant audit data.

Enterprise teams building AI agents for regulated industries benefit most from Fact0. It helps fintech companies prove loan approval processes, healthcare organizations track patient data access, and support teams document autonomous bot actions. The tool provides procurement-ready evidence packs that satisfy security review requirements while also serving as a debugging tool for engineering teams through execution DAG visualization and replay capabilities.