Mockfly vs WireMock

Mockfly provides hosted mock REST API endpoints for teams building or testing before a backend is ready. An endpoint can return JSON, XML, or files such as PDFs and CSVs, and can select among several responses using rules tied to incoming requests. Mock data can use Faker.js templates or AI-generated JSON. Projects can start from OpenAPI, Swagger, Postman collection, or HAR imports; a Chrome extension can capture browser requests and add selected endpoints. Teams can share and edit mocks, inspect request logs, and review response-body history. For offline work, the mockfly-cli npm package pulls projects to serve locally. A public REST API and MCP server support programmatic mock creation and editing. Mockfly lists API, extension, Linux, self-hosted, and web platforms, and supports REST and WebSocket. The free Starter plan allows 500 requests per day, one project, four endpoints, and two responses per endpoint. Pro costs €15 a month; Team costs €49 a month; Company is listed from €199 a month.

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.