Microcks vs Smithy
Microcks
microcks.io
Smithy
smithy.ioSide by side
| Figure | Microcks | Smithy |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 0 |
| Spec score · API Design Tools | 8.9 (#4) | 7.1 (#24) |
| CLI platforms | Microcks CLI binaries are available for Linux, macOS and Windows, and the CLI is also distributed as a container image. | The Smithy CLI is supported on macOS for x86 and ARM, Linux for x86 and ARM, and Windows x64. |
| Integrations | Official automation integrations include GitHub Actions, Jenkins, GitLab CI and Tekton Pipelines. | Smithy build configurations can load extensions and code generators through Maven dependencies and plugins, including AWS-specific dependencies and an OpenAPI generator. |
| Protocols | It supports OpenAPI, AsyncAPI, gRPC/Protobuf, GraphQL and SOAP. | Smithy describes support for REST JSON, RPC v2 CBOR, AWS JSON, and AWS Query protocols. |
| Purpose | Microcks is a tool for mocking and testing APIs and microservices. | Smithy is an open-source interface definition language for modeling services and SDKs. |
| Security | Microcks uses Keycloak for identity, authentication, permissions, and API endpoint protection, with OpenID Connect for user authentication. | The Smithy CLI installation guide says release archives are PGP-signed and hashed, and describes verifying signatures and checksums. |
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.