Lightweight service virtualization/ API simulation / API mocking tool for developers and testers
Camouflage is a backend mocking tool for HTTP, gRPC, Websockets and Thrift protocols, which helps you carry out your front end prototyping, unit testing, functional/performance testing in silos, in absence of one or more Microservices/APIs.
HTTP mock for Golang: record and replay HTTP/HTTPS interactions for offline testing
Java binding for Hoverfly
Dynamic API, S3 & Mail mocking for web, mobile & microservice development.
Open-source OpenAPI mock server with cloud hosting and local modes for development, testing, and CI. Generates realistic API responses from specs with latency simulation, error injection, proxy fallback, and request validation. Validated against 2,200+ real-world OpenAPI specs.
Your API mocking tool for OpenAPI and AsyncAPI using Go and JavaScript - https://mokapi.io
Mixing trafficparrot, mitm proxy and pact.io, without using all of them. Real mocks, Recording, Inspections, PACT and NULL infrastructure at once. Now abandoned for: https://github.com/kendarorg/the-protocol-master
Evolve your RESTful API's and Web Services
A .Net Library for Hoverfly
API mocks for development and testing
A versatile Go tool for effortlessly generating mock HTTP APIs for all your needs.
TPM-Proxy Is an infrastructure simulator to test effortlessy your app in minutes for MQTT, Redis, Amqp, MySQL, Postgres, Http, Https, DNS and MongoDB native protocols. Read the MacOs Warnings!
Admin dashboard for Hoverfly
Starter template for generating a Go OpenAPI mock server with Mockzilla. Typed handlers, custom logic, API Explorer UI, and automatic GitHub Actions deploys.
Starter template for OpenAPI mock services with Mockzilla. Push to main and get a hosted simulation URL and a downloadable binary in seconds.
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.
GitHub Actions for Mockzilla. Publish OpenAPI specs to a hosted API simulation on every push and pull request. Per-PR preview URLs, zero infrastructure required.
Install Hoverfly (https://docs.hoverfly.io) so that other GitHub Actions can use it easily (e.g. for testing)
Add a description, image, and links to the api-simulation topic page so that developers can more easily learn about it.
To associate your repository with the api-simulation topic, visit your repo's landing page and select "manage topics."