Microcks vs Specmatic
Microcks
microcks.ioSpecmatic
specmatic.ioSide by side
| Figure | Microcks | Specmatic |
|---|---|---|
| Price from | Free | $1.67/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 8 |
| Spec score · Contract Testing Tools | 8.6 (#4) | 7.8 (#13) |
| Spec score · Integration Testing Tools | 8.7 (#7) | 7.8 (#18) |
| Deployment | Microcks can be installed using Docker Desktop Extension, Docker or Podman Compose, Helm, or a Kubernetes Operator. | Specmatic Insights is offered as SaaS or on-premise in the Enterprise plan. |
| Protocols | It supports OpenAPI, AsyncAPI, gRPC/Protobuf, GraphQL and SOAP. | The site lists protocols including HTTP/REST, Kafka, gRPC, GraphQL, Google Pub/Sub, JMS, MQTT, RabbitMQ, SOAP, WebSocket, and MCP. |
| Purpose | Microcks is a tool for mocking and testing APIs and microservices. | Specmatic transforms API specifications into executable contracts for designing, building, and governing APIs. |
| Specifications | It supports OpenAPI, AsyncAPI, gRPC/Protobuf, GraphQL schemas, and SOAP. | The site lists support for OpenAPI, AsyncAPI, Avro, GraphQL SDL, Protobuf, WSDL, and Arazzo specifications. |
Plans
Specmatic
- Open Source (Free)Free
- Enterprise Tier — Next 1,000 Seats$20 a year
- Enterprise Tier — Next 500 Seats$30 a year
- Enterprise Tier — 251–500 Seats$40 a year
- Enterprise Tier — Next 250 Seats$40 a year
- Enterprise Tier — First 250 Seats$50 a year
- Enterprise Tier — 2,000+ Seats$120 a year
- Enterprise Tier — More than 2,000 Seats$120 a year
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.
Specmatic
Specmatic turns API specifications into executable contracts for designing, building, and governing APIs. Its suite includes Genie, which generates API specifications from plain English; Studio for visual API workflows and contract testing; and Insights for API governance and analytics. Listed formats include OpenAPI, AsyncAPI, Avro, GraphQL SDL, Protobuf, WSDL, and Arazzo. Protocols include HTTP/REST, Kafka, gRPC, GraphQL, Google Pub/Sub, JMS, MQTT, RabbitMQ, SOAP, WebSocket, and MCP. The free Open Source plan includes contract and API resilience testing, service virtualization, backward compatibility testing, a proxy server, and a specification coverage report. Enterprise adds Studio and Insights, available as SaaS or on-premise, alongside additional protocol and workflow capabilities. The software supports Linux, macOS, Windows, and self-hosted environments, with installation options including shell and PowerShell scripts, npm, and pip. A free plan is available; the pricing note lists paid access from $10/user/mo (annual).