The first fetch/XMLHttpRequest network-mocking library that's actually user-friendly
Enterprise-grade webhook testing suite for developers. Capture, inspect, replay, forward, validate, and mock webhook traffic in real time without tunnels. Includes SSE live streaming, JSON Schema validation, and signature verification for Stripe, GitHub, Shopify, Slack, and custom HMAC workflows.
Unified data modeling
MCP server for Mockzilla. Let Claude Code, Cursor, and Gemini CLI install Mockzilla, inspect OpenAPI specs, and spin up realistic local mock APIs in seconds. No account required for local use.
TwinBridge — capture, replay, and diff your APIs. Build and test offline against twins that learned from your real traffic.
A modern Fiddler Classic alternative for macOS. A Fiddler clone for Mac: capture and inspect HTTP/HTTPS traffic, and replay HAR files with an AutoResponder.
Mock the Stripe API in CI: a trimmed Stripe OpenAPI spec, deployed on every push by a GitHub Action, with tests running against it.
A body double for your API responses. Chrome extension to override REST API status codes and JSON bodies right from DevTools, many at once.
This package allows you to create mock REST API servers for testing and development purposes. It provides a simple and convenient way to define server configurations, handle requests, and send mock responses.
Whistle plugin that mocks requests as SSE streams: JSON messages with delays, line-by-line file replay (.jsonl), event/id/data fields, loop mode and a web UI.
Agent Skill that owns the UI↔API seam: extract an OpenAPI contract from a UI, mock it so the frontend builds immediately, validate the real backend against the same contract, and swap the frontend over — reversibly.
Behavior-driven e-commerce testing with Cypress & Cucumber — custom commands, API mocking, visual regression
Chrome extension to intercept Fetch requests, mock API responses locally, and rewrite XHR/Fetch responses with configurable rules.
This repository contains a showcase of Mountebank.
A zero-config Node.js CLI that instantly generates mock REST APIs from JSON files, with automatic CRUD endpoints, realistic fake data, and a live browser dashboard.
Zero-dependency mock API server for frontend devs: templated routes, path params, hot reload and a dashboard.
🚀 NEXUS-BAAS v2.0: Client-Side Database Orchestrator & API Mocking Engine. Arquitectura de persistencia de datos 100% en el navegador usando localStorage. Ideal para prototipado rápido, desarrollo offline o aplicaciones Zero-Knowledge.
Backend for MockCRUD: instant mock REST APIs, no setup, always live. Build resources manually or infer fields with AI, link related resources automatically, and add JWT auth per resource.
Chrome extension for mocking REST and GraphQL responses, replacing JS/CSS assets, and injecting page code.
Out With Mokku - Mokcha is your one step to mock, test and debug api calls, all within a simple chrome extension.
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