zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing for microservices APIs, Kafka(Data Streams), Databases and Load scenarios. all defined in simple JSON or YAML — with zero coding.

Prevent OpenAPI Generator from redefining your Java contract. Contract-preserving client generation for Spring Boot — available on Maven Central.

Efficient expense tracking app for individuals and businesses. Log daily expenses, generate monthly reports, categorize spending, and integrate with a database. Check out the API contract: https://petstore.swagger.io/?url=https://raw.githubusercontent.com/pradipmudi/expensys/main/src/main/java/com/expensys/openapi/expensys_openapi.yml

A CLI tool that does health and idempotency checks for your REST APIs

通用系统工程化的系统架构搭建流程助手 Skill / A reusable system architecture builder skill for AI coding agents

API (or Service) Contract example (for my own reference)

Detect API schema drift before your integrations break.

A Python framework for contract testing in CI/CD pipelines. Validates communication boundaries between services without requiring a shared environment.

Challenge Brain Agriculture

A boilerplate for building contract-first APIs in TypeScript with OpenAPI. Includes OpenAPI definition, compliant server setup, and npm package generation for seamless API development.

This GitHub repository complements my article series: One API to rule them all

Audits APIs against OpenAPI, AsyncAPI, JSON Schema, protobuf, or PRD contracts to catch drift before release.

Go SDK for StellSpec, providing shared specifications, models, and contracts for StellHub cloud-native infrastructure.

Vue 2 and Element UI admin dashboard practice with routing, CRUD pages and API contract documentation.

Public Interface, SDK, and Architecture Contracts for the ERPS Control Plane

A fast API contract validation and regression testing tool that validates live API responses against OpenAPI/Swagger specifications. A fast API contract validation and regression testing tool.

Prevents silent production breaks by automatically validating microservice API contracts and detecting breaking changes before deployment.

Schema registry and CI guard for un-documented REST APIs — infers JSON Schema from HAR, mitmproxy, and curl captures, and fails builds on breaking response changes. Zero runtime deps.

This GitHub repository complements my article series: One API to rule them all

CLI that diffs two OpenAPI contracts and flags breaking API changes before they reach clients — CI-friendly