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Mocklantis
Mock APIs. Build faster.·mocklantis.com
Mocklantis is a native desktop mock server application for REST, WebSocket, and SSE APIs. It lets developers create mock APIs, simulate complex stateful scenarios, inject chaos/latency/errors, and record real API responses to accelerate development and testing workflows. The app runs locally on the user's machine (localhost-only) with no cloud dependency or telemetry.
What it's for
Test service interactions without deploying entire microservices architectureBuild UI without waiting for backend APIs to be readyTest edge cases and error scenarios with controlled mock responsesPrototype and validate API designs before implementation
Features 20
- API Recording to capture real API responses and auto-create mocks
- Auto-Save every 500ms
- Chaos Engineering: response corruption, latency injection, error simulation, rate limiting
- Configurable per-endpoint response delays
- Import from cURL and OpenAPI/Swagger (URL, file, or paste)
- Live Request Logs streamed in real time
- Mock HTTP/REST API endpoints
- Multiple Responses per endpoint with Sequential, Random, and Repeat Last modes
- Native cross-platform desktop app built with Tauri
- No Server Restart needed for live configuration updates
- Proxy Mode forwarding unmatched requests to real APIs
- Query Parameter Matching with scoring system
- Random data generation with 14 built-in types and custom regex patterns
- Request/Response Validation with automatic 400 errors
- Response Templating referencing request data (path, query, headers, body)
- Server-Sent Events (SSE) streaming with reconnection support
- State Machine for multi-step, stateful API flows with visual flow editor
- Typed Path Variables with built-in and custom validation types
- Webhooks/Callbacks with 4 auth types and retry logic
- WebSocket mocking (Conversational, Streaming, Triggered modes)
At a glance
free tier
TypeDesktop app
DeploymentInstalled (local)
PlatformsWindows, macOS, Linux
Forsolo developers, teams, microservices developers, frontend developers, QA engineers, API designers
CompanyMocklantis
Integrations
OpenAPISwaggercURL
Pricing
Only pricing signal found is a $0 USD offer and a 'Download Free' call to action; no paid plans are publicly described.
FreeFree
Structured markup lists an Offer of price 0 USD; site offers a free download of the desktop application.