#event-sourcing

.NET Transactional Document DB and Event Store on PostgreSQL

Open-source (MIT) event sourcing database and processing runtime — Orleans-based kernel, pluggable storage (MongoDB, PostgreSQL, SQL Server, SQLite), and language-agnostic gRPC clients for .NET, TypeScript, Kotlin/Java, and Elixir (Python coming soon).

All the things a panda needs

Opinionated CQRS application framework for ASP.NET Core — commands, queries, validation, authorization, and full-stack TypeScript proxy generation; optional Chronicle event sourcing integration.

An event sourcing library, complete with all the essential features, powered by the reliable Doctrine ecosystem and focused on developer experience.

Modern Reactive CQRS Architecture Microservice development framework based on DDD and EventSourcing | 基于 DDD & EventSourcing 的现代响应式 CQRS 架构微服务开发框架

Event Sourcing library for .NET

Sekiban - an Opinionated Event Sourcing and CQRS Framework using C#. It can store data into Azure Cosmos DB, AWS Dynamo DB or Postgres

Framework for persisting event-sourced entities in PostgreSQL.

Wraps the .NET SDK for Azure Cosmos DB abstracting away the complexity, exposing a simple CRUD-based repository pattern

An event sourcing bundle, complete with all the essential features, powered by the reliable Doctrine ecosystem and focused on developer experience.

A library for event sourcing in Python.

[Go]Minimal event sourcing/CQRS library using protocol buffers for commands, events and states.

KurrentDB NodeJS Client

CQRS + event sourcing wired to HTMX in one line per endpoint — auth, CSRF, rate limiting, SSE built in. Bring your own router and templates.

Complete working example of using Domain Driven Design (DDD), Hexagonal Architecture, CQRS, Event Sourcing (ES), Event Driven Architecture (EDA), Behaviour Driven Development (BDD) using TypeScript and NestJS. Like what you see? Don't forget to star! ⭐ ^^^

Local-first infrastructure and app for user-owned data: offline-first sync, CRDT collaboration, typed schemas, and secure identity/permissions

LLM-driven tool-set that keeps work, payments, and governance in sync.

StateSet iCommerce

A Ruby implementation of an Event Store based on Active Record

ARES is a self-healing multi-agent runtime that combines event sourcing, memory distillation, chaos engineering, and evolutionary workflow optimization.

Event store implementation for cosmos written in C#

Production ready event-driven automata for Scala, Scala.js and scala native

Open-source control plane and runtime for organisational agents: shared company context, isolated execution, approvals and MCP.

Event-sourced AWS emulator for deterministic testing of AI-generated infrastructure code

Emmett - a Node.js library taking your event-driven applications back to the future!