Open source microservices projects
Every project in the registry tagged microservices, ranked by real GitHub adoption.
Dapr is a portable runtime for building distributed applications across cloud and edge, combining event-driven architecture with workflow orchestration.
Test Automation Made Simple
.NET API Gateway
The Modern Application Platform.
Design-first Go framework that generates API code, documentation, and clients. Define once in an elegant DSL, deploy as HTTP and gRPC services with zero drift b
The Cloud-Native API Gateway and AI Gateway
An API Gateway built on Spring Framework and Spring Boot providing routing and more.
An application observability facade for the most popular observability tools. Think SLF4J, but for observability.
Connexion is a modern Python web framework that makes spec-first and api-first development easy.
High performance Java APM. Powered by ASM. Try it. Test it. If you feel its better, use it.
Surging is a micro-service engine that provides a lightweight, high-performance, modular RPC request pipeline. support Event-based Asynchronous Pattern and rea
Service Fabric is a distributed systems platform for packaging, deploying, and managing stateless and stateful distributed applications and containers at large
Blazing-fast API gateway with linear scalability
Build AI (or any) apps with scalable microservices & microfrontends.
YAS: Yet Another Shop, a sample microservices project in Java
Distributed Big Data Orchestration Service
Welcome to the WSO2 API Manager source code! For info on working with the WSO2 API Manager repository and contributing code, click the link below.
the docker for Apache APISIX
A Realtime API Gateway used with NATS to build REST, real time, and RPC APIs, where all your clients are synchronized seamlessly.
Rate limiting, caching, and request prioritization for modern workloads
DataBuff is an AI-native APM built on Opentelemetry，with multi-agent troubleshooting out of the box.
Microservices library - scalecube-services is a high throughput, low latency reactive microservices library built to scale. It features: API-Gateways, service-d
Create low-latency, interactive user experiences for stateless microservices.
Low-code and no-code platform for business apps
Related tags
Frequently asked questions
How many open source microservices projects are there?
This registry tracks 24 projects tagged microservices, with 102,555 GitHub stars between them. The most-adopted is dapr at 26,174 stars.
Are these microservices projects free to use?
Yes — 24 of the 24 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which microservices project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these microservices projects still maintained?
17 of the 24 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.