Microcks vs WireMock

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 Cloud provides simulated API environments for software development, testing and AI coding workflows. It supports REST, GraphQL, gRPC, Kafka and SOAP, and can import mocks from Postman, HAR files, OpenAPI or Swagger, and WireMock open source. WireMock Runner can record APIs, including internal services behind a corporate firewall, then run simulations locally or in CI/CD. A remote MCP server and Agent Skills work with named clients including Claude Code, OpenAI Codex, GitHub Copilot, Cursor, VS Code and Augment. The free plan costs nothing and allows one user, three mock APIs, 1,000 calls/month and 10 requests per second, with a limited CLI for local recording. Mocks stop when the monthly call quota is exceeded and resume at the next billing-cycle reset. Enterprise pricing is by tailored quote and includes unlimited calls and team members subject to the license agreement, statefulness, AI features, hybrid deployment, priority support and an SLA. WireMock Cloud is built on the open-source WireMock API mocking platform.