Awesome GitHub RepositoriesType-Safe API Frameworks

This project is a high-performance web framework designed for building scalable server-side applications with minimal resource consumption. It provides a type-safe runtime environment that leverages static analysis to ensure consistent data structures across request handlers and server configurations, facilitating reliable API development. The framework distinguishes itself through a schema-driven validation layer that enforces strict data integrity for incoming requests and outgoing responses using standardized definitions. It utilizes an encapsulated plugin architecture that organizes appli

Hono is a lightweight web framework built on Web Standard APIs that executes across JavaScript runtimes including Cloudflare Workers, Deno, Bun, and Node.js.

Elysia is a high-performance TypeScript web framework designed for building type-safe backend services. It provides a modular, plugin-based architecture that allows developers to compose server logic, middleware, and validation schemas into scalable application instances. By leveraging native web standards, the framework ensures portability across diverse JavaScript runtimes, including Node.js, Deno, and various edge computing environments. The framework distinguishes itself through its focus on end-to-end type safety, automatically synchronizing request and response definitions between the s

Moya is a network abstraction layer for Swift that provides a structured framework for defining and executing REST API requests. It functions as a type-safe API client that decouples network endpoint definitions from the underlying implementation details to prevent configuration errors and URL typos. The project distinguishes itself by using protocol-based endpoint definitions and a provider-coordinated execution model. It includes a system for mapping network responses to strongly typed objects and features a dedicated tool for generating type-safe network interface files from external REST

Encore is a distributed systems framework designed to unify backend development, infrastructure provisioning, and observability. It functions as an infrastructure-as-code platform that allows developers to define cloud resources, databases, and messaging topics directly within their application code. By analyzing these declarations at compile-time, the system automatically manages the deployment of cloud resources and security policies, ensuring parity between local development and production environments. The platform distinguishes itself through its integrated development experience, which

gqlgen is a schema-first Go library designed to build type-safe GraphQL servers. It functions as a code generation engine that transforms declarative GraphQL schema definitions into strongly-typed Go source code, ensuring strict alignment between the API contract and the underlying implementation. The framework distinguishes itself through its deep integration with the Go type system and its highly extensible build pipeline. By using schema-first development, it automates the creation of server boilerplate and resolver stubs, allowing developers to map schema fields directly to Go structs and

Django Ninja is a high-performance framework for building type-safe REST APIs using Django. It functions as an OpenAPI API framework and a type-safe wrapper that utilizes Python type hints to handle request validation and response serialization. The project distinguishes itself by integrating Pydantic-based data modeling to convert JSON inputs into strongly typed Python objects. It automatically generates OpenAPI schemas and interactive documentation pages directly from defined endpoint signatures. The framework supports asynchronous request processing to handle concurrent tasks. It employs

Litestar is a high-performance Python ASGI web framework designed for building asynchronous APIs and web services. It functions as a type-safe toolkit that leverages Python type hints to provide automatic request validation and response serialization, while natively generating interactive API documentation based on the OpenAPI specification. The framework is distinguished by its integrated dependency injection system, which manages shared resources and resolves complex nested service chains directly within request handlers. It further organizes API development through class-based controllers

Type-graphql is a toolkit and framework for creating type-safe GraphQL APIs. It functions as a schema generator and resolver library that uses TypeScript classes and decorators as the primary source of truth for data structures and query logic. The project enables the definition of GraphQL schemas and resolvers through typed classes rather than manual schema definition language. This approach ensures that TypeScript types automatically align with the GraphQL schema to prevent runtime errors. The framework provides capabilities for API implementation, including input data validation and acces

Hug is a type-driven Python web framework designed for building APIs. It uses Python type annotations to automatically validate and convert incoming request data and to format outgoing responses. The framework functions as an automated documentation tool by extracting function signatures and markers from source code to generate accessible API specifications. It also supports non-blocking coroutines for asynchronous API processing to handle background tasks without interrupting the main request cycle. The project provides capabilities for REST API development, including route mapping, endpoin

ServiceStack es un framework web de alto rendimiento para .NET diseñado para construir APIs con seguridad de tipos utilizando objetos de solicitud y respuesta fuertemente tipados. Funciona como un motor de API basado en mensajes que desacopla la lógica de negocio de la capa de transporte, permitiendo que los servicios se expongan a través de múltiples protocolos, incluyendo HTTP, gRPC y varios proveedores de colas de mensajes. El framework se distingue por su generador de API con seguridad de tipos, que produce SDKs de cliente nativos y objetos de transferencia de datos (DTOs) a partir de metadatos de servicio en múltiples lenguajes. También incluye un gateway de servicios distribuidos para la orquestación de microservicios, un ORM code-first para traducir objetos C# directamente a registros de base de datos y un sistema centralizado de gestión de identidad y acceso para un acceso seguro basado en tokens. Su superficie de capacidades más amplia cubre la mensajería asíncrona y el streaming de eventos en tiempo real mediante Pub-Sub y Server-Sent Events. Proporciona un soporte integral de serialización de datos para formatos como JSON, XML, ProtoBuf y MessagePack, junto con flujos de autenticación integrados que incluyen JWT, claves API y autenticación de paso a paso. Herramientas adicionales incluyen la generación automatizada de API CRUD, ejecución de trabajos en segundo plano y plantillas de dashboard administrativo.

Trailbase es una plataforma de backend-as-a-service entregada como un ejecutable único que integra un motor de base de datos en tiempo real, un gestor de identidad y acceso, y un generador de API con seguridad de tipos. Proporciona un entorno de backend integral que incluye un motor de almacenamiento respaldado por SQLite y un servidor de runtime WebAssembly para ejecutar lógica personalizada. La plataforma se distingue por transformar automáticamente los esquemas de base de datos en APIs JSON con bindings de cliente para múltiples lenguajes y por permitir la ejecución de componentes portátiles para el renderizado del lado del servidor y rutas HTTP personalizadas. Además, incorpora capacidades de base de datos vectorial para admitir el almacenamiento de embeddings y la búsqueda vectorial basada en similitud. El sistema cubre una amplia gama de capacidades operativas, incluyendo la autenticación de usuarios con soporte para inicio de sesión social, listas de control de acceso para la visibilidad de datos y sincronización pub-sub para actualizaciones de datos en vivo. También proporciona herramientas para gestionar esquemas de bases de datos mediante migraciones SQL y el manejo de datos geoespaciales.

orpc is a contract-first API development framework for TypeScript that starts with a shared contract definition and generates type-safe clients and servers from that single source of truth. It guarantees end-to-end type safety, meaning inputs, outputs, errors, and streaming data are all checked at compile time across the client–server boundary. What distinguishes orpc from typical RPC frameworks is its ability to export contracts as OpenAPI specifications, to optimize server-side rendering by calling API handlers directly inside the server process, and to support real‑time bidirectional commu

tsoa es un framework de API en TypeScript y generador de API REST OpenAPI. Convierte controladores y modelos de TypeScript en especificaciones OpenAPI y configuraciones de enrutamiento para servidores Node, asegurando que las definiciones de código y la documentación de la API permanezcan sincronizadas. La herramienta funciona como un generador de especificaciones OpenAPI y un validador de peticiones REST. Extrae rutas, esquemas de petición y modelos de respuesta del código fuente para producir documentos OpenAPI estándar y proporciona una capa de middleware para verificar que los payloads HTTP entrantes coincidan con los esquemas definidos en TypeScript. El proyecto cubre la gestión de rutas RESTful y la validación de peticiones de API. Utiliza análisis de tipos estáticos para convertir tipos de lenguaje en definiciones de esquema JSON y emplea generación basada en plantillas para mapear metadatos de controladores en rutas de servidor.

This is a library for building command-line interfaces in Swift. It converts command-line arguments into type-safe Swift properties using a declarative approach, ensuring that inputs match expected data types to prevent runtime errors. The framework supports the creation of complex command hierarchies through nested subcommands. It automatically generates formatted usage documentation and error messages by deriving information from the defined metadata and types. The system utilizes property wrappers to attach parsing logic to types and employs reflection to extract metadata from property na