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Microcks

No phone app

6.7No. 13 of 25
in API Design Tools
  • Recognised40% of the score32
  • Phone app26% of the score0
  • Documented20% of the score96
  • Free plan14% of the score100
Free plan
Yes
Runs on
api, Browser extension, Linux, Mac, self-hosted, Web, Windows
Visit site Alternatives

Summary

Microcks is a free, open-source tool for mocking and testing APIs and microservices. It supports OpenAPI, AsyncAPI, gRPC/Protobuf, GraphQL, and SOAP. Mocks can draw on examples, generate sample data, or transform responses dynamically. Contract testing checks provider and consumer behavior against live implementations and specification versions. Microcks can automate checks in CI/CD pipelines, with integrations for GitHub Actions, Jenkins, GitLab CI, and Tekton. Its containerized architecture can run on-premises, in the cloud, or on developer laptops. The Uber distribution is intended for laptop and unit-test use and uses temporary in-memory storage. A free community marketplace for API mocks and test suites is also available. The public demo is read-only, so it cannot import APIs or modify existing artifacts. Documentation cautions against using the all-managed Kubernetes setup in production: its single Keycloak and MongoDB instances are not tuned for scalability or security best practices.

Who it is for

Microcks suits API owners, developers, quality assurance teams, and platform engineers who need to mock or test APIs and microservices. Its containerized deployment options support both laptop use and larger environments.

What is good

  • Free and open-source.
  • Supports OpenAPI, AsyncAPI, gRPC/Protobuf, GraphQL, and SOAP.
  • Automates contract checks through four listed CI/CD integrations.
  • Can run on-premises, in the cloud, or on laptops.
  • Includes a free community marketplace for mocks and test suites.

What to know first

  • Public demo cannot import APIs or change existing artifacts.
  • All-managed Kubernetes setup is not recommended for production.
  • Python Testcontainers support is community-maintained.

Verdict

Microcks combines API mocking, contract testing, and CI/CD automation in a free, open-source project. Note the read-only demo and the documented production limitation for the all-managed Kubernetes setup.

Microcks plans and pricing

All plans
Microcks (open-source distribution) Free 100% open source, community-driven initiative · self-hosted deployment options microcks.io · 2 Oct 2026

Compared on API design tools

Free plan
Yesmicrocks.io

Facts

Purpose
Microcks is a tool for mocking and testing APIs and microservices.microcks.io · 30 Sept 2026
Open source
Microcks is a 100% open source, community-driven CNCF Incubating project.microcks.io · 30 Sept 2026
Protocols
It supports OpenAPI, AsyncAPI, gRPC/Protobuf, GraphQL and SOAP.microcks.io · 30 Sept 2026
Dynamic mocking
Mocking can reuse examples, generate realistic examples, or transform mock data and responses.microcks.io · 30 Sept 2026
Contract testing
Microcks performs provider and consumer contract testing against live implementations and specification versions.microcks.io · 30 Sept 2026
CI/CD automation
It automates checks in CI/CD pipelines and provides auto-generated code snippets for integration.microcks.io · 30 Sept 2026
Deployment
Its containerized architecture supports deployment on-premises, in the cloud, or on developer laptops.microcks.io · 30 Sept 2026
Demo limitation
The public demo is read-only and cannot import new APIs or modify existing artifacts.microcks.io · 30 Sept 2026
Security
Authentication is delegated to Keycloak using OpenID Connect Authorization Code Flow.microcks.io · 30 Sept 2026
Secrets
Only Microcks administrators can manage credentials for Git repositories, API endpoints and event brokers.microcks.io · 30 Sept 2026
Integrations
Official automation integrations include GitHub Actions, Jenkins, GitLab CI and Tekton Pipelines.microcks.io · 30 Sept 2026
Backstage
The Backstage provider discovers APIs from Microcks instances and synchronizes them into the Backstage Software Catalog.microcks.io · 30 Sept 2026
Testcontainers
Official Testcontainers modules support Java, NodeJS/TypeScript, Golang and .NET; Python support is community-maintained.microcks.io · 30 Sept 2026
CLI platforms
Microcks CLI binaries are available for Linux, macOS and Windows, and the CLI is also distributed as a container image.microcks.io · 30 Sept 2026
Current release
The homepage announces Microcks version 1.15.0 as released.microcks.io · 30 Sept 2026
Specifications
It supports OpenAPI, AsyncAPI, gRPC/Protobuf, GraphQL schemas, and SOAP.microcks.io · 2 Oct 2026
Mocking
It can reuse examples, generate realistic examples, and transform mock data and responses on the fly.microcks.io · 2 Oct 2026
CI/CD
It provides integrations for GitHub Actions, Jenkins, GitLab CI, and Tekton pipelines.microcks.io · 2 Oct 2026
Local use
The Uber distribution is designed for laptop and unit-test use and uses in-memory MongoDB for ephemeral usage.microcks.io · 2 Oct 2026
Access roles
The documented default roles are user, manager, and admin, with permissions for repository management and instance administration.microcks.io · 2 Oct 2026
Audience
The project describes use cases for API owners, developers, quality assurance teams, and platform engineers.microcks.io · 2 Oct 2026
Project status
Microcks is a CNCF incubating project and a 100% open-source, community-driven initiative.microcks.io · 2 Oct 2026
Marketplace
Microcks Hub is described as a free community marketplace for API mocks and test suites, and is enabled by default in Microcks.microcks.io · 2 Oct 2026
AI feature limit
The AI Copilot guide says the feature supports OpenAI-compatible APIs at the time of writing and requires an OpenAI API key in the documented Docker Desktop Extension setup.microcks.io · 2 Oct 2026

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