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SPECIFICTION
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Mockfly vs Mocki

Mockfly

mockfly.dev

Mocki

mocki.io

Side by side

FigureMockflyMocki
Price from€12.50/mo$15/mo
Free planYes—
Free trial—Yes
Open source——
WebYesYes
LinuxYes—
APIYesYes
Self-hostedYesYes
Plans published71
Spec score · API Mocking Tools9.2 (#2)8.0 (#9)
PurposeMockfly creates hosted mock REST API endpoints so teams can build and test before a backend is ready.Mocki lets users create, run, and deploy mock APIs for development and testing.
SupportSupport is provided directly by the builders through email, in English or Spanish.The site offers prioritized support with the Starter plan and says users can contact the maker through the site's chat.

Plans

Mockfly

  • StarterFree
  • StarterFree
  • Pro€15 a month
  • Team€49 a month
  • Pro annual€150 a year
  • Company€199 a month
  • CompanyPriced on request

Mockfly pricing →

Mocki

  • Starter$15 a month

Mocki pricing →

In their own words

Mockfly

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.

Visit mockfly.dev

Mocki

Mocki has no write-up on Specifiction yet; its figures are above.

Visit mocki.io