Using Mockfly as a mock API has helped us speed up development and test all types of scenarios. It's super useful and has good UX.
Inditex
Software Architect
Iván Zamarro
Its intuitive interface, the ease with which you can create endpoints, and its ability to generate random data make it one of the best tools for API mocking.
BBVA
SecDevOps
Adrián Fuentes
It's a vital tool in our developments because it allows our back-end and front-end teams to work independently of each other. If you want to mock an API, it's perfect.
Reveni
Frontend Engineer
Miguel Carvajal
Mockfly is a tool for creating mock APIs and serving REST requests. It has a very intuitive interface and useful features such as auto-documentation.
BBVA Next Technologies
Backend Engineer
Sebastián Trinidad
If you're seeking a tool to mock your API professionally, yet easily, with a pleasant interface, this is the perfect choice. They offer excellent support, and we selected it for its outstanding UX.
La Liga
Fullstack Engineer
Gianmarco Segura
Developers and teams across industries use mock APIs to accelerate development, enable parallel workflows, and improve API testing. Here is how different roles benefit from our free mock API generator.
Build and test UI components without waiting for backend APIs. Use mock APIs to develop features in parallel with backend teams. Create mock REST endpoints instantly and iterate faster on user interfaces with realistic fake data.
Test service integrations and API contracts before implementation. Use mock APIs to simulate third-party services and external dependencies. Create mock endpoints for any API you depend on during development.
Develop iOS and Android apps independently from backend availability. Mock APIs let you test offline scenarios, various response states, and error handling. Build your mobile app faster with free mock API endpoints.
Create consistent test environments with predictable mock API responses. Simulate edge cases, errors, and timeout scenarios for thorough API testing. Use mock endpoints to ensure comprehensive test coverage.
Work together in real-time on mock API projects. Invite teammates, share mock endpoints, and iterate faster with seamless collaboration on your mock server.
Configure multiple mock API responses per endpoint with different status codes. Simulate success, errors, and edge cases for comprehensive API testing.
Get beautiful, up-to-date mock API documentation automatically. Share your mock endpoints with your team or stakeholders instantly.
Generate realistic names, emails, addresses, and more for your mock API with built-in Faker.js integration. Create convincing fake JSON data instantly.
Build and manage mock API endpoints in seconds with our clean, developer-friendly interface. No coding required - the easiest mock API generator online.
Capture real API requests directly from your browser and convert them to mock API endpoints with one click. The fastest way to create a mock server.
Describe your mock API response in plain English and let AI generate complete JSON structures. The smartest way to create mock API data.
Set conditions for different mock responses based on request parameters, headers, or body content. Full control over your mock API behavior.
Let AI write comprehensive descriptions for your mock API endpoints based on their configuration. Save time on mock API documentation.
Invite team members and work together seamlessly. Share endpoints, sync changes instantly, and accelerate your development workflow.
Generate authentic-looking names, emails, addresses, phone numbers, and more. Make your test data indistinguishable from production.
Describe what you need in plain English. Our AI creates complete JSON responses and endpoint descriptions automatically.
Track every change made to your endpoints. Visualize differences between versions and rollback when needed.
Monitor every request hitting your endpoints. Inspect headers, bodies, and timing for easy debugging.
Understand your API usage patterns with interactive charts. Identify trends and optimize your endpoints.
See endpoint counts, response statistics, and most-called endpoints at a glance. Complete visibility into your API project.
A mock API is a simulated API that mimics the behavior of a real API without connecting to actual backend services. Mock APIs allow developers to test applications, develop frontend features, and prototype integrations without waiting for backend development. They return predefined or dynamically generated responses, making mock APIs essential for parallel development and faster iteration cycles.
Creating a free mock API with Mockfly takes seconds: 1) Sign up for free at mockfly.dev, 2) Create a new project, 3) Define your mock API endpoints with paths, HTTP methods, and response bodies, 4) Get your unique mock API URL instantly. The free plan includes 500 requests per day, 1 project, 4 endpoints, and 2 responses per endpoint.
Mockfly is considered one of the best mock API generators because it combines simplicity with powerful features. Unlike complex tools, our mock API generator lets you create endpoints in seconds with an intuitive interface. Features include AI-powered JSON generation, Faker.js for fake data, dynamic response rules, team collaboration, and automatic documentation - all free.
Using a mock API accelerates frontend development by removing backend dependencies. Frontend developers can build and test UI components while the backend team develops the real API. Mock APIs enable testing edge cases, error scenarios, and various response states that would be difficult to reproduce. This leads to more robust applications and faster time-to-market.
Yes, Mockfly offers a free mock API service (Starter plan) that includes 500 requests per day, 1 project, 4 endpoints, and 2 responses per endpoint. It is perfect for trying out API mocking and small projects. No credit card required to get started.
Yes, Mockfly offers two powerful ways to generate fake data for your mock API: 1) Faker.js integration generates realistic names, emails, addresses, dates, and more. 2) AI-powered generation creates complete JSON mock responses from natural language descriptions. Both methods make your mock APIs realistic and useful for testing.
Mock APIs enable comprehensive API testing by simulating scenarios difficult to reproduce with real APIs. You can test error responses, edge cases, timeouts, and different data states. Mockfly supports multiple mock responses per endpoint with custom status codes, headers, and dynamic rules based on request parameters.
Absolutely. Mockfly is built for mock API team collaboration. Invite team members to your projects, share mock endpoints, and work together in real-time. All changes sync instantly, making it easy to maintain consistent mock APIs throughout your development process.
Yes, Mockfly fully supports REST API mocking with all HTTP methods (GET, POST, PUT, PATCH, DELETE) and any HTTP status code. Configure multiple mock responses per endpoint, add custom headers, and create dynamic rules. It is the most complete free mock REST API tool available online.
Mockfly combines ease of use with powerful mock API features: AI-powered JSON generation, real-time collaboration, Faker.js integration, dynamic response rules, automatic documentation, request logging, and a Chrome extension. Unlike complex tools, Mockfly lets you create mock APIs in seconds with an intuitive interface.
