Mock APIs. Build faster.
Create mock server, test HTTP/REST endpoints, and accelerate your development workflow with Mocklantis desktop application.
Intuitive Interface
Modern, user-friendly interface for managing all your mock servers and endpoints
Clean Workspace
Organize multiple servers with ease
Quick Navigation
Jump between endpoints instantly
Dark Theme
Built for long coding sessions
Auto-Save
Never lose your work
State Machine
Build complex multi-step API flows with stateful scenarios and visual transitions
Visual Flow Editor
Drag and connect states visually
Flexible Binding
Multiple endpoints per state, or vice versa
Advance Control
Choose which endpoints advance the state
One-Click Reset
Reset scenario to initial state instantly
Chaos Engineering
Test your application resilience with controlled failures and edge cases
Response Corruption
Drop fields, nullify values, or return malformed JSON
Latency Injection
Add random or fixed delays to responses
Error Simulation
Return configurable error responses
Rate Limiting
Simulate API rate limits and 429 responses
Multiple Responses
Return different responses for the same endpoint to test polling, retries, and transitions
Sequential Mode
Cycle through responses: 1 → 2 → 3 → 1 → 2 → 3
Random Mode
Pick a random response each time
Repeat Last
Stick on final response: 1 → 2 → 3 → 3 → 3
Request Count & Expire Time
Control usage limits and response expiration
Why Mocklantis?
Everything you need to mock, test, and develop APIs faster
No Server Restart
Update endpoints, change configurations, and modify responses in real-time without restarting your mock server
Auto-Save
Every change is automatically saved in 500ms. No save buttons, no lost work, just seamless editing
WebSocket Support
Full-featured WebSocket mocking with 3 modes: Conversational, Streaming, and Triggered
Webhooks
Trigger HTTP callbacks when endpoints are called. Many-to-many binding, auto-retry, and 4 auth types
API Recording
Capture real API responses and auto-create mocks. Point to any API, make requests, and build your mock library instantly
Proxy Mode
Forward unmatched requests to real APIs for hybrid testing. Mix mocked and real endpoints seamlessly
Perfect For
Whether you are a solo developer or part of a team, Mocklantis adapts to your workflow
Microservices
Test service interactions without deploying entire architecture
Frontend Developers
Build UI without waiting for backend APIs to be ready
QA Engineers
Test edge cases and error scenarios with controlled mock responses
API Designers
Prototype and validate API designs before implementation