API Frameworks

✅ The Node.js best practices list (July 2026)

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

Fast, unopinionated, minimalist web framework for node.

🦍 The API and AI Gateway

Payload is the open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly. Use Payload as a headless CMS or for building powerful applications.

The java implementation of Apache Dubbo. An RPC and microservice framework.

Connect, secure, control, and observe services.

The lean application framework for Python. Build sophisticated user interfaces with a simple Python API. Run your apps in the terminal and a web browser.

Web APIs for Django. 🎸

The Go language implementation of gRPC. HTTP/2 based RPC

lightweight, idiomatic and composable router for building Go HTTP services

An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.

Sample cloud-first application with 10 microservices showcasing Kubernetes, Istio, and gRPC.

AdonisJS is a TypeScript-first web framework for building web apps and API servers. It comes with support for testing, modern tooling, an ecosystem of official packages, and more.

Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library.

The Cloud-Native API Gateway and AI Gateway

The API and real-time application framework

Server-side Swift. The Perfect core toolset and framework for Swift Developers. (For mobile back-end development, website and API development, and more…)

LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.

Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM!

Slim is a PHP micro framework that helps you quickly write simple yet powerful web applications and APIs.

The Java gRPC implementation. HTTP/2 based RPC

Integrated end-to-end testing framework written in Node.js and using W3C Webdriver API. Developed at @browserstack

Tyk Open Source API Gateway written in Go, supporting REST, GraphQL, TCP and gRPC protocols

Mockery is a simple yet flexible PHP mock object framework for use in unit testing with PHPUnit, PHPSpec or any other testing framework. Its core goal is to offer a test double framework with a succinct API capable of clearly defining all possible object operations and interactions using a human readable Domain Specific Language (DSL).

An opinionated framework for creating REST-like APIs in Ruby.

A RESTful API package for the Laravel and Lumen frameworks.

🕸️ Create REST and GraphQL APIs, scaffold Jamstack webapps, stream changes in real-time.

💨 Fast, Async-ready, Openapi, type hints based framework for building APIs

🚂 🦀 The one-person framework for Rust for side-projects and startups

An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs

Test Automation Made Simple

Deploy infinitely scalable serverless apps, apis, and sites in seconds to AWS.

.NET API Gateway

A polyglot document intelligence framework with a Rust core. Extract text, metadata, images, and structured information from PDFs, Office documents, images, and 97+ formats. Available for Rust, Python, Ruby, Java, Go, PHP, Elixir, C#, R, C, TypeScript (Node/Bun/Wasm/Deno)- or use via CLI, REST API, or MCP server.

Headless open-source eCommerce platform on top of PHP/Symfony/API Platform

Light, flexible and extensible ASGI framework | Built to scale

Best microservices framework in Go, like alibaba Dubbo, but with more features, Scale easily. Try it. Test it. If you feel it's better, use it! 𝐉𝐚𝐯𝐚有𝐝𝐮𝐛𝐛𝐨, 𝐆𝐨𝐥𝐚𝐧𝐠有𝐫𝐩𝐜𝐱! build for cloud!

Open-source, self-hosted CMS platform on AWS serverless (Lambda, DynamoDB, S3). TypeScript framework with multi-tenancy, lifecycle hooks, GraphQL API, and AI-assisted development via MCP server. Built for developers at large organizations.

Go RPC framework with high-performance and strong-extensibility for building micro-services.

A framework for building compiled Node.js add-ons in Rust via Node-API

Simple framework for creating REST APIs

REST API framework designed for human beings

A flexible framework for maintainable Ruby apps

Design-first Go framework that generates API code, documentation, and clients. Define once in an elegant DSL, deploy as HTTP and gRPC services with zero drift between code and docs.

A light-weight REST API development framework for ASP.NET 8 and newer.

aiogram is a modern and fully asynchronous framework for Telegram Bot API written in Python using asyncio

Headless CMS with automatic JSON API. Featuring auto-HTTPS from Let's Encrypt, HTTP/2 Server Push, and flexible server framework written in Go.

MoltenVK is a Vulkan Portability implementation. It layers a subset of the high-performance, industry-standard Vulkan graphics and compute API over Apple's Metal graphics framework, enabling Vulkan applications to run on macOS, iOS and tvOS.

🚀 PHP Microservice Full Coroutine Framework

Beautiful, interactive charts, maps, and gauges. One API for every .NET UI framework.

Run Express and other Node.js frameworks on AWS Serverless technologies such as Lambda, API Gateway, Lambda@Edge, and more.

LoopBack makes it easy to build modern API applications that require complex integrations.

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.