Antaeus

Antaeus

Open-source semantic policy engine with testable decisions

Coming soonLaunches Monday, Nov 16 · in 14 days

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What is Antaeus?

Antaeus is an open-source Go engine and CLI for evaluating human-written business policies. Define named rules in YAML or JSON, validate versioned policy artifacts, and run regression cases with a credential-free deterministic evaluator. Semantic evaluators judge whether conditions apply; the engine applies configured outcomes and returns allow, review, deny, or failure with the policy version and evaluator details. Use cases include custom content moderation and marketplace listing policies. The local core requires no Antaeus account. Antaeus is early and pre-v1; semantic evaluator integrations are experimental.

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Joined Oct 2026

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