Rule Engine Python Packages

python-rule-engine

A rule engine where rules are defined in JSON format

arta

A Python Rules Engine - Make rule handling simple

ekuiper

Lightweight data stream processing engine for IoT edge

actra

Actra - control what runs before it runs, controls what actions are allowed before they execute. Evaluate policies across APIs, workflows and AI agents in real time.

nemo-python

A fast in-memory rule engine

py-rules-engine

A pure-python rules engine. Packed with components to build rules and a rule parser. :arrow_forward:

blazerules

A SIMD-accelerated, C++ rule engine, embeddable in pipelines. Evaluates declarative rules over event batches at memory-bandwidth speed

erdl-formal

Determinism isn't tested — it's proven. SMT-based formal verification for ERDL, the rule language of enterprise AI agents.

hlpy-business-rule-engine

A business rule engine written in Python.

ruleforge-engine

Deterministic, typed, sandboxed, and auditable rule execution engine for predictable policy decisions. Python + C# with cross-language conformance.

sentinel-kernel

Agility infrastructure for regulated AI. Trace, Policy, Evidence under EU jurisdiction. Apache 2.0, on-premise capable.

simpleruleengine

A simple composable rule engine, built in object-oriented way, to reduce manual work.

ice-rules

Rule engine/process engine, committed to solving flexible and complex hard-coded problems, for complex/flexibly changing business, provide a new abstract orchestration solution that is lightweight, high-performance and provides visual operation pages. Java规则引擎-ice，针对复杂/灵活变动业务，提供一个新的抽象编排解决方案，轻量级，高性能并提供可视化操作页面

exportify

Declaratively automate Python __all__ and __init__ exports and no-cost lazy barrel files.

ruledsl

Deterministic rule language (RuleDSL v1.0) with versioned grammar contract and stable C SDK.

fertpy

Rule-based agronomic calculation engine for soil correction and nutrient dose computation.

ruly-dmn

Rule engine based DMN implementation

openbias

Open Source policy enforcement proxy: Make your agents follow rules.

opensentinel

Open Source policy enforcement proxy: Make your agents follow rules.

nxuskit-py

Provider-agnostic AI SDK for Rust, Go, Python, and C ABI: LLMs, local models, CLIPS rules, Z3 solvers, Bayesian networks, ZEN decision tables, and nxuskit-cli.

smartswitch

Intelligent rule-based function dispatch for Python

rulegraph

Declarative rule graphs for AI agent policy and constraint enforcement

steerpack

Rule lifecycle governance for LLM agents — human adjudication pipeline, mid-execution watchdog, cross-harness portable export.