Microcks vs WireMock
Microcks
microcks.io
WireMock
wiremock.orgSide by side
| Figure | Microcks | WireMock |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 2 |
| Spec score · API Mocking Tools | 8.9 (#3) | 7.4 (#16) |
| Spec score · Service Virtualization Software | 8.6 (#4) | 7.4 (#16) |
| Spec score · Integration Testing Tools | 8.7 (#7) | 7.4 (#22) |
| Integrations | Official automation integrations include GitHub Actions, Jenkins, GitLab CI and Tekton Pipelines. | The project describes integration with JUnit and other testing frameworks, and offers Maven, Gradle, Scala SBT, standalone, and Docker getting-started options. |
| Protocols | It supports OpenAPI, AsyncAPI, gRPC/Protobuf, GraphQL and SOAP. | WireMock Java documentation lists HTTP-based protocols and REST, with additional capabilities for WebSockets, webhooks, HTTPS, gRPC, and GraphQL. |
| Purpose | Microcks is a tool for mocking and testing APIs and microservices. | WireMock simulates APIs and software dependencies so teams can test without those dependencies, simulate edge cases, and develop dependent features in parallel. |
| Security | Microcks uses Keycloak for identity, authentication, permissions, and API endpoint protection, with OpenID Connect for user authentication. | WireMock Inc.’s trust center states that WireMock has attained SOC 2 Type 2 compliance and lists encryption in transit and at rest among its data security measures. |
Plans
In their own words
Microcks
Microcks is an open-source tool for mocking and testing APIs and microservices. It works with OpenAPI, AsyncAPI, gRPC/Protobuf, GraphQL schemas, and SOAP, and can build mock responses from examples, generate realistic data, or alter mock data and responses dynamically. It also checks provider and consumer contracts against live implementations and specification versions, and automates checks in CI/CD pipelines with integrations for GitHub Actions, Jenkins, GitLab CI, and Tekton. Containerized deployment supports on-premises, cloud, and developer-laptop use; its Uber distribution is intended for laptop work and unit tests, using ephemeral in-memory MongoDB. The free, community marketplace for API mocks and test suites is enabled by default. Microcks is a CNCF incubating project, with a listed price of free. The public demo is read-only and cannot import APIs or change artifacts. Documentation cautions against production use of the all-managed Kubernetes setup because its single Keycloak and MongoDB instances are not tuned for scalability or security best practices.
WireMock
WireMock simulates APIs and software dependencies so teams can test without live services, exercise edge cases, and build dependent features in parallel. It can match requests using URL patterns, headers, query parameters, cookies, and body content, then return templated responses or simulate delays, network faults, and malformed replies. It can also record interactions with real services and replay them during tests.
The project integrates with JUnit and other testing frameworks, with setup paths for Maven, Gradle, Scala SBT, standalone use, and Docker. Its documented capabilities cover HTTP-based protocols and REST, plus WebSockets, webhooks, HTTPS, gRPC, and GraphQL. WireMock Java is available as a standalone JAR, Docker image, experimental Helm chart, and NPM package; WireMock Cloud is another option. The Free plan costs nothing and includes 1,000 calls per month, one user, three mock APIs, and a 10 requests-per-second limit. Free and trial plans stop running mocks after their API quota is exceeded until the next quota cycle.