Build better APIs with Hey API PlatformDashboard

One OpenAPI spec.
Infinite outputs.

Code generator for TypeScript projects. Trusted by companies like Google, Amazon, and PayPal to generate API clients, SDKs, validators, and more.

Get Started

View Demo

Roadmap

OpenAPI Schema

You provide OpenAPI schema. We take care of the rest. OpenAPI 2.0, 3.0, and 3.1 supported.

Get started

Types and SDKs

Highly customizable output with sensible defaults. No manual maintenance required.

See output

Clients

Type-safe data with REST clients for your runtime. Fetch API, Angular, Next.js, Nuxt and more.

Explore clients

Plugins

Reduce third-party boilerplate with our plugin ecosystem.

Explore plugins

🧩

Custom

Build your own plugins and clients for proprietary use cases.

Build a custom plugin

Integrations

Superpower your codegen with automations and integrations.

Learn about integrations

Gold

Best-in-class SDKs and MCP for your API.
stainless.com

One OpenAPI spec.
Infinite outputs.

OpenAPI Schema

Types and SDKs

Clients

Plugins

Custom

Integrations

Sponsors

Gold

Silver

Bronze

Friends

One OpenAPI spec.Infinite outputs.

OpenAPI Schema

Types and SDKs

Clients

Plugins

Custom

Integrations

Sponsors ​

Gold ​

Silver ​

Bronze ​

Friends ​

One OpenAPI spec.
Infinite outputs.

Sponsors

Gold

Silver

Bronze

Friends