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Microservices Architecture (MSA) Tools

A directory of tools for building, testing, connecting and operating microservices — frameworks, API platforms, testing tools and runtimes — widely used when modernizing monolithic applications.

28 topics•5 categories•Updated October 2026

Frameworks & Languages

7 entries

Build services with these frameworks and languages.

01Spring BootSpring Boot makes it easy to create stand-alone, production-grade Spring-based microservices applications that you can "just run." 02ElixirA dynamic, functional language built on the fault-tolerant Erlang VM, designed for building scalable and maintainable distributed applications. 03SenecaA microservices toolkit for Node.js that helps you write clean, organized, command-based code you can scale and deploy at any time. 04Lagom FrameworkLagom helps you decompose a legacy monolith and build, test, and deploy entire systems of Reactive microservices on the JVM, maintained by Lightbend. Last commit on the default branch was in August 2023, so consider newer frameworks for new projects. 05goaDesign-first framework for building microservices and APIs in Go. 06QuarkusKubernetes-native Java framework for fast startup and low memory use. 07MicronautJVM framework for modular, easily testable microservices.

API Platforms & Gateways

4 entries

Design, publish and secure service APIs.

08PostmanThe world's leading API platform for designing, testing, and documenting the APIs that connect microservices, now with AI-native workflow tooling. 09Tyk API ManagementA fast, scalable, and independent API management platform — including an open-source API gateway, analytics, developer portal, and dashboard. 10OpenAPI InitiativeHome of the OpenAPI Specification for describing HTTP APIs. 11gRPCHigh-performance RPC framework widely used between services.

Testing

3 entries

Contract, integration and performance testing of services.

12Sauce Labs (Microservices Testing Solutions)The world's largest continuous testing cloud, offering microservices testing solutions across web browsers, mobile emulators, simulators, and real devices. 13PactConsumer-driven contract testing for services. 14WireMockAPI mocking and service virtualization.

Orchestration, Runtimes & Service Mesh

5 entries

Coordinate and connect services at runtime.

15Conductor OSS (formerly Netflix Conductor)A workflow orchestration engine born at Netflix and now community-maintained as Conductor OSS, providing durable execution for microservices workflows and AI agents. 16TemporalDurable execution platform for reliable workflows across services. 17DaprPortable runtime with building blocks for distributed applications. 18Envoy ProxyHigh-performance proxy and communication bus for service architectures. 19IstioService mesh for traffic management, security and observability.

Related Pages

9 entries

Related directories on this site.

20Microservices Monitoring ToolsOpenTelemetry, Prometheus, Grafana, Jaeger, Datadog, Dynatrace and other tools for monitoring microservices. 21Microservices ArchitectureMicroservices architecture hub. 22Microservices Architecture PatternsDesign patterns for microservices. 23Microservices FrameworksFrameworks by language. 24Legacy Application ModernizationFrom COBOL mainframes to cloud-native and agentic AI. 25Service MeshesService mesh implementations. 26API Management PlatformsAPI management and gateways. 27EDA ResourcesGuides, whitepapers and standards for event-driven architecture. 28Message Queue SoftwareRabbitMQ, ActiveMQ, IBM MQ, SQS, NATS and task queues.

Frequently Asked Questions

What are microservices tools?

Frameworks, API platforms, testing tools and runtimes that help teams build, connect, test and operate small, independently deployable services.

Which framework should I choose?

Spring Boot, Quarkus and Micronaut are common on the JVM, goa suits Go, Elixir suits fault-tolerant systems and Seneca targets Node.js; pick the one your team already knows.

How do I test microservices?

Combine unit tests with contract tests such as Pact, mocks such as WireMock and end-to-end tests on a continuous testing cloud.

Where does a service mesh fit?

A mesh such as Istio handles traffic, security and observability between services so each service does not have to.

How does this relate to modernization?

Breaking a monolith into services is a common modernization path; see the Legacy Application Modernization page.

Which links may need a manual click?

Links were rechecked in October 2026 and all outbound links on this page returned 200 to automated checks. For related directories, see Service Meshes, Kubernetes Networking Solutions and Microservices Architecture on this site.