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Microservices Integration Tools

Libraries and frameworks that simplify the integration of microservices patterns—including service discovery, client‐side load balancing, circuit breaking, and dynamic routing—to build resilient cloud-native applications.

96 projects

161,925 contributors

$10B

Most contributors

gRPC

gRPC is a modern open source high performance RPC framework that can run in any environment. It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking and authentication. It is also applicable in last mile of distributed computing to connect devices, mobile applications and browsers to backend services.

21,858

5,683

$151M

Istio

Istio extends Kubernetes to establish a programmable, application-aware network using the powerful Envoy service proxy. Working with both Kubernetes and traditional workloads, Istio brings standard, universal traffic management, telemetry, and security to complex deployments.

13,474

2,895

$428M

Envoy

ENVOY IS AN OPEN SOURCE EDGE AND SERVICE PROXY, DESIGNED FOR CLOUD-NATIVE APPLICATIONS.

9,855

2,183

$3.8B

Traefik

Traefik is a modern HTTP reverse proxy and load balancer that makes deploying microservices easy. It integrates with existing infrastructure components and automatically configures itself. Traefik handles traffic routing, load balancing, SSL/TLS termination, and service discovery across multiple cloud providers and container orchestration platforms.

9,507

3,368

$12M

Nacos

Nacos is an open-source platform for dynamic service discovery, configuration management, and service management. It provides a key infrastructure component for building cloud native applications, enabling features like service registration/discovery, dynamic configuration management, and service governance across distributed systems.

8,043

460

$12M

NestJS

NestJS is a progressive Node.js framework for building efficient, reliable and scalable server-side applications. It uses modern JavaScript/TypeScript and combines elements of OOP (Object Oriented Programming), FP (Functional Programming), and FRP (Functional Reactive Programming), while being heavily inspired by Angular's architecture.

7,702

1,907

$3.5M

Apache Dubbo

Apache Dubbo is a high-performance, Java-based RPC framework that enables service-oriented architecture. It provides service registration, discovery, load balancing, and monitoring capabilities for distributed systems, helping organizations build scalable microservices architectures.

5,886

449

$12M

Dapr

Dapr is a portable, event-driven, runtime for building distributed applications across cloud and edge.

4,892

1,061

$56M

AsyncAPI

The mission of the Project is to provide open-source vendor-neutral specification(s) and tools to facilitate the development and governance of APIs (Application Programming Interfaces).

3,851

715

$34M

Knative

Knative is an Open-Source Enterprise-level solution to build Serverless and Event Driven Applications.

3,721

982

$751M

Spring Cloud Gateway

An API Gateway built on Spring Framework and Spring Boot providing routing and more.

3,683

432

$2.3M

Spring Cloud Netflix

Spring Cloud Netflix provides Netflix OSS integrations for Spring Boot applications, including service discovery (Eureka), circuit breaker (Hystrix), intelligent routing (Zuul) and client side load balancing (Ribbon). It enables building distributed systems and microservices architectures using Spring Boot with Netflix components.

3,567

516

$781K

MassTransit

MassTransit is a distributed application framework and message bus for .NET that enables building loosely coupled applications using message-based asynchronous communication patterns. It provides a high-level abstraction over message transport technologies like RabbitMQ, Azure Service Bus, and Amazon SQS.

3,383

453

$12M

Apache Camel

Apache Camel is an open-source integration framework that enables message-oriented middleware patterns for implementing enterprise integration solutions. It provides a domain-specific language and extensive component library for routing and mediating data between different systems and protocols.

3,079

344

$116M

Micronaut Framework

Micronaut is a modern JVM-based framework for building modular, easily testable microservices and serverless applications. It provides dependency injection, AOP, configuration management, and cloud-native features with fast startup time and reduced memory footprint.

2,677

487

$16M

Aspire

Tools, templates, and packages to accelerate building observable, production-ready apps

2,666

506

$20M

Sentinel

Sentinel is a powerful flow control component that helps ensure the stability of microservices and distributed systems. It provides features like circuit breaking, flow control, system adaptive protection, and real-time monitoring to prevent service degradation during high traffic or system failures.

2,341

184

$2.9M

Echo

Echo is a high-performance, extensible, minimalist web framework for Go that provides a robust set of features for building web applications and APIs, including routing, middleware support, data binding, validation, and static file serving

2,333

775

$933K

go-zero

A cloud-native Go microservices framework with cli tool for productivity.

2,237

245

$4.5M

Hyperf

🚀 A coroutine framework that focuses on hyperspeed and flexibility. Building microservice or middleware with ease.

2,235

187

$11M

Ocelot

.NET API Gateway

1,824

214

$3.5M

Apache ShenYu

Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance.

1,816

120

$11M

bRPC

brpc is an Industrial-grade RPC framework using C++ Language, which is often used in high performance system such as Search, Storage, Machine learning, Advertisement, Recommendation etc. "brpc" means "better RPC".

1,808

187

$8.7M

GoFrame

A powerful framework for faster, easier, and more efficient project development.

1,661

131

$8.3M

Durable Functions

The host/runtime that powers Azure Functions

1,645

222

$3.4M

Open Liberty

Open Liberty is an open source application server designed for cloud-native Java applications. It enables developers to build and deploy microservices and cloud-native applications using Eclipse MicroProfile and Jakarta EE standards, offering features like rapid development, dynamic updates, and flexible deployment options.

1,614

105

$256M

Kratos

Your ultimate Go microservices framework for the cloud-native era.

1,555

247

$1.3M

Payara Platform Community Edition

Payara Server is an open source middleware platform that supports reliable and secure deployments of Java EE (Jakarta EE) and MicroProfile applications in any environment: on premise, in the cloud or hybrid.

1,520

163

$57M

Spring Cloud Stream

Spring Cloud Stream is a framework for building highly scalable event-driven microservices connected with shared messaging systems. It provides a flexible programming model built on already established and familiar Spring programming conventions and best practices, including support for persistent publish-subscribe semantics, consumer groups, and partitioned data streams.

1,466

211

$2.4M

Hystrix

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex distributed systems where failure is inevitable.

1,450

251

$1.8M

CloudEvents

CloudEvents is a specification for describing event data in a common way. CloudEvents seeks to dramatically simplify event declaration and delivery across services, platforms, and beyond! CloudEvents is a new effort and it's still under active development. However, its working group has received a surprising amount of industry interest, ranging from major cloud providers to popular SaaS companies. The specification is now under the Cloud Native Computing Foundation.

1,375

491

$4.1M

Activiti

Activiti is an open-source business process management (BPM) and workflow engine that enables organizations to model, automate, and execute business processes. It provides a lightweight, Java-based platform for process automation with BPMN 2.0 support, process modeling tools, and integration capabilities with various enterprise systems.

1,300

143

$11M

Go Micro

A Go microservices framework

1,234

279

$1.7M

Finagle

A fault tolerant, protocol-agnostic RPC system

1,205

282

$6.7M

Eureka

Eureka is a REST-based service registry and load balancer for cloud applications, providing service discovery, registration, and high availability features. It enables microservices to locate and communicate with each other in distributed systems.

999

166

$1.8M

Axon Framework

Framework for Evolutionary Message-Driven Microservices on the JVM

924

162

$7.4M

Apollo Router Core

The Apollo Router Core is a high-performance, configurable GraphQL router and gateway implementation written in Rust. It serves as a key infrastructure component for GraphQL architectures, handling request routing, schema composition, and query execution while providing features like caching, security, and observability.

901

199

$18M

NServiceBus

Build, version, and monitor better microservices with the most powerful service platform for .NET

876

159

$2.9M

Spring Cloud Kubernetes

Spring Cloud Kubernetes is a framework that integrates Spring Cloud with Kubernetes, enabling Spring Boot applications to interact with Kubernetes for service discovery, configuration management, and load balancing. It provides native integration between Spring Cloud and Kubernetes APIs for building cloud-native applications.

862

183

$2.4M

Armeria

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.

861

175

$19M

Kuma

Built on top of Envoy, Kuma is a modern control plane for Microservices & Service Mesh for both K8s and VMs, with support for multiple meshes in one cluster.

699

192

$55M

Spring Framework on Google Cloud

New home for Spring Cloud GCP development starting with version 2.0.

698

111

$8.4M

Misk

Microservice Kontainer

661

43

$4.8M

Rebus

Rebus is a .NET service bus library that provides a simple API for building distributed systems using messaging patterns. It supports multiple transport options, message routing, publish/subscribe, sagas, and other enterprise integration patterns.

614

104

$1.1M

WSO2 Synapse

WSO2 Synapse is an open-source enterprise service bus (ESB) and integration middleware platform that enables communication between various applications and services, facilitating message routing, transformation, and protocol conversion within enterprise integration architectures.

594

41

$22M

SmallRye Reactive Messaging

SmallRye Reactive Messaging

567

126

$4.9M

wasmCloud

wasmCloud is a cloud native distributed application runtime that combines the portability and security of WebAssembly with the flexibility of an actor model.

511

170

$52M

Eclipse Dataspace Connector

The Eclipse Dataspace Connector (EDC) is an open-source framework for creating enterprise-grade data spaces that enable secure and standardized data sharing between organizations. It implements the International Data Spaces (IDS) standard and provides core capabilities for data sovereignty, contract negotiation, and policy enforcement in distributed data ecosystems.

500

64

$5.7M

Midway

🍔 A Node.js Serverless Framework for front-end/full-stack developers. Build the application for next decade. Works on AWS, Alibaba Cloud, Tencent Cloud and traditional VM/Container. Super easy integrate with React and Vue. 🌈

489

57

$27M

Citrus

Framework for automated integration tests with focus on messaging integration

420

41

$17M

Tower

async fn(Request) -> Result<Response, Error>

350

158

$342K

SmallRye GraphQL

SmallRye GraphQL is a GraphQL server and client implementation for Java, providing a framework for building GraphQL APIs in Java applications. It offers features like schema generation, query execution, and integration with MicroProfile GraphQL specification.

335

60

$2.2M

Airlift

Airlift is a Java framework for building REST services, providing features like configuration management, service discovery, and dependency injection. It offers a modular architecture for building distributed systems and microservices with a focus on performance and scalability.

319

73

$3M

Quarkus LangChain4j

Quarkus LangChain4j is an integration project that enables the use of LangChain4j, a Java framework for building applications with large language models (LLMs), within Quarkus applications. It provides Quarkus extensions and configurations for working with AI/ML models and language processing capabilities.

312

64

$6.8M

Mutiny

Mutiny is a reactive programming library for Java that provides a modern API for asynchronous programming. It offers a declarative approach to handle streams of data and events, with support for backpressure and composable operations.

294

55

$3.1M

X-Road

Source code of the X-Road® data exchange layer software

282

31

$36M

Aeraki Mesh

Aeraki Mesh allows you to manage any layer-7 traffic in a service mesh. While service mesh becomes an important infrastructure for microservices, many service mesh implementations mainly focus on HTTP protocols and treat other protocols as plain TCP traffic. This makes it very hard for users to manage the traffic of other widely-used layer-7 protocols in microservices. For example, in a microservices application, we usually have the below protocols: * RPC: HTTP, gRPC, Thrift, Dubbo, Proprietary RPC Protocol … * Messaging: Kafka, RabbitMQ … * Cache: Redis, Memcached … * Database: MySQL, PostgreSQL, MongoDB … HTTP is just a part of the problem we need to solve. Aeraki Mesh is created to provide a non-intrusive, highly extendable way to manage any layer-7 traffic in a service mesh. Aeraki Mesh is an open source project backed by Tencent Cloud (https://www.crunchbase.com/organization/tencent-cloud), contributed and used by a number of companies/projects inside and outside of Tencent, suh QQ music, Yangshiping, Yonghui Super Marke, etc. (https://www.aeraki.net/). Tencent Cloud is committed to continue working on Aeraki Mesh going forward, and plans to provide managed Aeraki Mesh service on the cloud. More about Aeraki Mesh can be found here: https://docs.google.com/presentation/d/1TLkGIboRFYdbYkvMRFQZG2P8ZBjb_wNwL-1Fh_umoQI/edit?usp=sharing

165

40

$3.5M

ServiceTalk

A networking framework that evolves with your application

146

27

$9.3M

SmallRye Fault Tolerance

SmallRye implementation of MicroProfile Fault Tolerance: bulkheads, circuit breakers, fallbacks, rate limits, retries, timeouts, and more

85

23

$1.4M

Leemons

🚀 The Powerful, flexible, user-friendly and open source Learning Experience Platform built entirely in Javascript 😎

69

8

$13M

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