Move Fast and Break Nothing. End-to-end typesafe APIs made easy.

Generate, valid, cache and mock in your frontend applications all with your OpenAPI specification

Turn API specifications into production-ready SDKs, validators, mocks, and more. 20+ plugins. Millions of weekly npm downloads. Used by Vercel, OpenCode, PayPal, AWS, Autodesk, and many more.

The Ultimate Toolkit for Generating Type-Safe API Clients, Hooks, and Validators.

React Hooks for Data Fetching

Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.

A modern data client for React and tRPC inspired by Relay and GraphQL

The smart data fetching layer for Vue

Relay is a JavaScript framework for building data-driven React applications.

Full-stack CRUD, simplified, with SSOT TypeScript entities

The highly customizable and versatile GraphQL client with which you add on features like normalized caching as you grow.

Generate TypeScript types from OpenAPI 3 specs

Typesafe APIs Made Simple

The industry-leading GraphQL client for TypeScript, JavaScript, React, Vue, Angular, and more. Apollo Client delivers powerful caching, intuitive APIs, and comprehensive developer tools to accelerate your app development.