#cqrs

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).

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

Mediator pattern and Command Query Responsibility Segregation (CQRS) implementation in .NET

serverless applications with CQRS on AWS, NestJS and local development

A library for event sourcing in Python.

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

Resource Query Responsibility Segregation (RQRS) is a caching framework for BEAR.Sunday that optimizes performance by separating query and command responsibilities. It features event-driven cache invalidation, dependency resolution, donut caching, CDN integration, and conditional requests.

Simple EventStore based on PostgreSQL

KurrentDB NodeJS Client

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! ⭐ ^^^

Collection of Agent Skills for Claude Code, Cursor, Codex, Windsurf, and any agent that speaks the open Skills spec. Ships via npm + plugin + skills add.

A Ruby implementation of an Event Store based on Active Record

Event store implementation for cosmos written in C#

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

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The .NET One Person Framework — build, run, and ship a whole product solo, in C#, on one server. C# components server-rendered or on WebAssembly, a typed SPA or islands (React, Vue, Angular, Svelte, Solid, Preact, Lit), a hosted meta framework or real Blazor. SQLite-first data, auth, jobs, mail, cache, CQRS & one-command deploy.

Silverback is a message bus and broker integration library for .NET. It is designed to simplify event-driven architectures and asynchronous messaging, with first-class support for Apache Kafka and MQTT.

Go library for wiring go-cqrs-lite with HTMX, templ, and Casbin authorization — framework-agnostic HTTP handler builder

Async Rust library to route messages between Kafka, NATS, MQTT, AMQP, databases and HTTP, with Python and Node bindings