State Management Python Packages

python-statemachine

Expressive statecharts and FSMs for modern Python.

burr

Build applications that make decisions (chatbots, agents, simulations, etc...). Monitor, trace, persist, and execute on your own infrastructure.

memori

Memori is agent-native memory infrastructure. A LLM-agnostic layer that turns agent execution and conversation into structured, persistent state for production systems. Built for enterprise, Memori works with the data infrastructure you already run, no rip-and-replace, and deploys across managed cloud, single-tenant cloud, VPC, and on-premises.

apache-burr

Build applications that make decisions (chatbots, agents, simulations, etc...). Monitor, trace, persist, and execute on your own infrastructure.

pensyve

Universal memory runtime for AI agents

reaktiv

Signals for Python - Reactive Declarative State Management Library for Python - automatic dependency tracking and reactive updates for your application state. Inspired by Angular Signals / SolidJS.

nucore

The interaction primitive.

nustd

The interaction primitive.

nucli

The interaction primitive.

pycascadeui

Redux-inspired UI framework for discord.py.

sqlalchemy-fsm

SQLAlchemy finite state machine support

wybthon

Build interactive web apps with Python running directly in the browser.

typedmem

Memory for AI agents when facts change — current state, history, and provenance.

agenthold

Shared versioned state for multi-agent AI workflows. An MCP server.

memorisdk

Memori is agent-native memory infrastructure. A LLM-agnostic layer that turns agent execution and conversation into structured, persistent state for production systems. Built for enterprise, Memori works with the data infrastructure you already run, no rip-and-replace, and deploys across managed cloud, single-tenant cloud, VPC, and on-premises.

atomicmemory

Open-source AtomicMemory Python SDK

langgraph-checkpoint-cosmos

Library with a Azure CosmosDB implementation of LangGraph checkpoint saver.

selfmemory

Let your memories live forever by passing your knowledge to the next generation with SelfMemory.

langstate

Inspectable context compression for LLM conversations: turn older history into visible scaffold state, keep recent turns verbatim, and check named facts with lexical receipts.

openintent

A neutral protocol for coordinating intent across humans and agents. Goal lifecycle, state, auditability.

nudle

The interaction primitive.

vektori

Memory that remembers the story not just the facts. File System Memory and Three layer sentence graph for AI agents -> Facts, Episodes, raw Sentences. One DB. Zero config.

fast-langgraph

High-performance Rust accelerators for LangGraph applications. Drop-in components that provide up to 700x speedups for checkpoint operations and 10-50x speedups for state management.

zproc

Process on steroids