API Design Guide

🏙️ Essential learning for people building APIs

A collaborative list of great resources about RESTful API architecture, development, test, and performance

RapiDoc -WebComponent for OpenAPI Spec

This is The Standard. A collection of decades of experience in the engineering industry. I authored it to help you navigate the vast ocean of knowledge. The Standard is not perfect and never will b…

Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

Beautiful static documentation for your API

API Management built for developers

Build OpenAPI-compliant REST APIs using TypeScript and Node

Microsoft REST API Guidelines

RESTler is the first stateful REST API fuzzing tool for automatically testing cloud services through their REST APIs and finding security and reliability bugs in these services.

The AsyncAPI specification allows you to create machine-readable definitions of your asynchronous APIs.

The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation sandbox project 🚀

Newman is a command-line collection runner for Postman

OpenAPI generator for Postman format v2.1

Scalar is an open-source API platform:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　🌐 Modern Rest API Client　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　📖 Beautiful API References　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　…