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 ist ein hochperformantes .NET-Webframework für den Bau typsicherer APIs unter Verwendung stark typisierter Request- und Response-Objekte. Es fungiert als nachrichtenbasierte API-Engine, die Geschäftslogik von der Transportschicht entkoppelt, wodurch Services über mehrere Protokolle wie HTTP, gRPC und verschiedene Message-Queue-Provider bereitgestellt werden können. Das Framework zeichnet sich durch seinen typsicheren API-Generator aus, der native Client-SDKs und Data Transfer Objects (DTOs) aus Service-Metadaten über mehrere Sprachen hinweg produziert. Es enthält zudem ein verteiltes Service-Gateway für Microservices-Orchestration, ein Code-First-ORM zur direkten Übersetzung von C#-Objekten in Datenbankdatensätze sowie ein zentralisiertes Identitäts- und Zugriffsmanagementsystem für sicheren tokenbasierten Zugriff. Die breitere Funktionspalette deckt asynchrones Messaging und Echtzeit-Event-Streaming durch Pub-Sub und Server-Sent Events ab. Es bietet umfassende Unterstützung für Datenserialisierung in Formaten wie JSON, XML, ProtoBuf und MessagePack, neben integrierten Authentifizierungs-Flows wie JWT, API-Keys und Step-up-Authentifizierung. Zusätzliches Tooling umfasst automatisierte CRUD-API-Generierung, Hintergrund-Job-Ausführung und Vorlagen für administrative Dashboards.

Trailbase ist eine Backend-as-a-Service-Plattform, die als einzelne ausführbare Datei bereitgestellt wird und eine Echtzeit-Datenbank-Engine, ein Identitäts- und Zugriffsmanagement sowie einen typsicheren API-Generator integriert. Sie bietet eine umfassende Backend-Umgebung, einschließlich einer SQLite-basierten Speicher-Engine und einer WebAssembly-Runtime-Server zur Ausführung benutzerdefinierter Logik. Die Plattform zeichnet sich dadurch aus, dass sie Datenbankschemata automatisch in JSON-APIs mit sprachübergreifenden Client-Bindings transformiert und die Ausführung portabler Komponenten für Server-Side-Rendering und benutzerdefinierte HTTP-Routen ermöglicht. Sie integriert zudem Vektor-Datenbankfunktionen zur Unterstützung der Speicherung von Embeddings und Ähnlichkeitssuche. Das System deckt ein breites Spektrum operativer Funktionen ab, einschließlich Benutzerauthentifizierung mit Social-Login-Unterstützung, Zugriffskontrolllisten für Datensichtbarkeit und Pub-Sub-Synchronisierung für Live-Daten-Updates. Es bietet zudem Tools zur Verwaltung von Datenbankschemata mittels SQL-Migrationen und zur Handhabung von Geodaten.

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 ist ein TypeScript-API-Framework und ein OpenAPI-REST-API-Generator. Es konvertiert TypeScript-Controller und -Modelle in OpenAPI-Spezifikationen und Routing-Konfigurationen für Node-Server und stellt sicher, dass Codedefinitionen und API-Dokumentation synchron bleiben. Das Tool fungiert als OpenAPI-Spezifikationsgenerator und REST-Request-Validator. Es extrahiert Pfade, Request-Schemata und Response-Modelle aus dem Quellcode, um Standard-OpenAPI-Dokumente zu erstellen, und bietet eine Middleware-Ebene, um zu verifizieren, dass eingehende HTTP-Payloads den TypeScript-definierten Schemata entsprechen. Das Projekt deckt RESTful-Routenmanagement und API-Request-Validierung ab. Es nutzt statische Typanalyse, um Sprachtypen in JSON-Schema-Definitionen zu konvertieren, und verwendet template-basierte Generierung, um Controller-Metadaten auf Serverrouten abzubilden.