The Decision Layer Your
Software Has Always Needed.
An open-source, explainable, API-first decision engine built for enterprises, developers, and the age of AI.














The Problem Nobody Talks About Enough
Every software system that matters makes decisions. Whether it is pricing a policy, calculating net pay, or guiding an AI agent—the engine underneath is always governed by rules.
And here is the uncomfortable truth: those rules are buried.
They are buried in conditional statements three levels deep inside a service class. They are buried in stored procedures. They are buried in Excel sheets. Traditional rule engines are often too expensive, mandate stack lock-in, and fail to tell you why a decision was made.
BaaS provides an explicit, testable, and deeply explainable place to put them.
API-First & Agnostic
Exposed through a clean REST API. Whether your stack is Node, Python, Java, or Go, BaaS drops in instantly as your centralized logic layer.
Decision Traces
Do not just get a result. Get a full, human-readable breakdown of every rule evaluated, explaining exactly why a decision was reached.
AI Guardrails
Provide deterministic boundaries for probabilistic AI. Ground agentic workflows in concrete business reality with explicit constraints.
Run it locally in seconds
Pull the official Docker image and spin up the engine, API docs, and visual editor on your machine instantly.
docker run -p 3000:3000 zeguru/baas:latest