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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.

97 projects

164,189 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.

21,881

5,651

$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.

13,507

2,887

$428M

Envoy

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

9,914

2,182

$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.

9,541

3,366

$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.

8,074

458

$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.

7,717

1,905

$3.6M

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.

5,900

446

$12M

Dapr

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

4,902

1,065

$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).

3,876

708

$34M

Knative

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

3,731

986

$750M

Spring Cloud Gateway

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

3,688

433

$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.

3,570

517

$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.

3,386

454

$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.

3,080

352

$118M

Aspire

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

2,707

509

$22M

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.

2,678

485

$16M

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.

2,343

180

$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

2,339

779

$1M

go-zero

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

2,245

241

$4.5M

Hyperf

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

2,237

187

$11M

Ocelot

.NET API Gateway

1,827

213

$3.5M

Apache ShenYu

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

1,815

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".

1,812

184

$8.7M

GoFrame

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

1,663

130

$8.5M

Durable Functions

The host/runtime that powers Azure Functions

1,649

220

$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.

1,619

106

$256M

Kratos

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

1,556

244

$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

164

$56M

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.

1,471

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.

1,378

492

$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.

1,302

142

$11M

Go Micro

A Go microservices framework

1,237

278

$1.9M

Finagle

A fault tolerant, protocol-agnostic RPC system

1,205

281

$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.

1,000

166

$1.8M

Axon Framework

Framework for Evolutionary Message-Driven Microservices on the JVM

924

160

$7.5M

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.

904

198

$18M

NServiceBus

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

878

159

$2.9M

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.

863

176

$20M

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

182

$2.4M

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.

700

193

$55M

Spring Framework on Google Cloud

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

699

109

$8.4M

Misk

Microservice Kontainer

666

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.

615

104

$1.1M

Finatra

Finatra is a modern web framework built on top of Twitter's Finagle library, designed for building fast, testable, and modular HTTP services and APIs in Scala. It provides features like dependency injection, configuration management, logging, and testing utilities.

599

132

$2.1M

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

127

$5M

wasmCloud

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

513

168

$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.

505

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. 🌈

490

57

$28M

Apache Seata

Apache Seata is a distributed transaction solution that provides high-performance and easy-to-use transaction services in microservices architecture. It offers AT, TCC, SAGA, and XA transaction modes to ensure data consistency across multiple databases and services.

421

39

$12M

Citrus

Framework for automated integration tests with focus on messaging integration

420

42

$17M

Tower

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

351

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.

323

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.

317

67

$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.

296

57

$3.1M

X-Road

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

284

31

$36M

Spring Cloud AWS

Spring Cloud AWS is a library that simplifies integration between Spring Cloud applications and Amazon Web Services (AWS), providing seamless configuration and usage of AWS services like S3, SQS, SNS, and more within Spring-based applications.

250

34

$2.3M

Javalin

Javalin is a lightweight web framework for Java and Kotlin that enables rapid development of web applications and REST APIs with minimal boilerplate code. It features a simple and intuitive API, WebSocket support, and built-in security features.

218

26

$969K

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