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Mockfly

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About

Mockfly is ranked #3 of 27 in API mocking tools on Inferse. It runs on API, Browser extension, Linux, Self-hosted, Web. There is a free plan. Paid plans start at €15/mo.

Compared on API mocking tools

Free plan
Yesmockfly.dev
Dynamic responses
Yesmockfly.dev
OpenAPI import
Yesmockfly.dev
Mock data generation
Yesmockfly.dev
Local deployment
Yesmockfly.dev
Supported protocols
REST, WebSocketmockfly.dev

Facts

Purpose
Mockfly creates hosted mock REST API endpoints so teams can build and test before a backend is ready.mockfly.dev · 29 Sept 2026
Responses
Each endpoint can have multiple responses selected by conditional rules based on incoming requests.mockfly.dev · 29 Sept 2026
Data formats
Endpoints can return JSON, XML, or files such as PDF and CSV.mockfly.dev · 29 Sept 2026
Data generation
Mockfly supports Faker.js templates and AI-generated JSON payloads.mockfly.dev · 29 Sept 2026
Imports
Mockfly can import OpenAPI, Swagger, Postman collections, and HAR captures.mockfly.dev · 29 Sept 2026
Integrations
The Chrome extension captures browser requests and adds selected endpoints to a Mockfly project.mockfly.dev · 29 Sept 2026
Offline use
The mockfly-cli npm package can pull projects and serve them locally without an internet connection.mockfly.dev · 29 Sept 2026
Automation
A public REST API and an MCP server can be used to create and edit mocks programmatically.mockfly.dev · 29 Sept 2026
Team features
Teams can share and edit mocks, inspect request logs, and view response body history.mockfly.dev · 29 Sept 2026
Security and data
Mockfly says it stores mock definitions and project request logs to run the service, does not sell that data, and does not set tracking cookies.mockfly.dev · 29 Sept 2026
Support
The maker says users can email the developers directly in English or Spanish.mockfly.dev · 29 Sept 2026
Intended users
Mockfly describes its users as frontend, backend, mobile, QA, and testing engineers who need shared mock APIs.mockfly.dev · 29 Sept 2026
Notable free limit
The Starter plan is limited to 500 requests per day, one project, four endpoints, and two responses per endpoint.mockfly.dev · 29 Sept 2026

Company

Founded
2023mockfly.dev · 28 Sept 2026

Best Mockfly alternatives

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7.4 Knockout API $0.02/mo first paid tier Free plan 7.4 Microcks Free free plan, no paid price published Free plan 7.4 Mockzilla $10/mo first paid tier Free plan 7.3 MockAPI $2.92/mo first paid tier Free plan 7.3 moqapi.dev $29/mo first paid tier Free plan 7.2 MockServer Free free plan, no paid price published Free plan

Where it ranks on Inferse

Sources