OpenAPI to code in seconds. | Hey API

# Hey API > 🌀 OpenAPI to TypeScript codegen. Production-ready SDKs, Zod schemas, TanStack Query hooks, and 20+ plugins. Used by Vercel, OpenCode, and PayPal. ## Documentation Sets - [Abridged documentation](https://heyapi.dev/llms-small.txt): a compact version of the documentation for Hey API, with non-essential content removed - [Complete documentation](https://heyapi.dev/llms-full.txt): the full documentation for Hey API ## Pages - [OpenAPI to Python in seconds.](https://heyapi.dev/codegen/openapi/python.md): Generate production-grade API infrastructure from your OpenAPI spec. Typed SDKs and Pydantic models. Free and open source. - [OpenAPI to TypeScript in seconds.](https://heyapi.dev/codegen/openapi/typescript.md): Generate production-grade API infrastructure from your OpenAPI spec. Typed SDKs, Zod schemas, TanStack Query hooks, and 20+ plugins. Free and open source. - [AIOHTTP](https://heyapi.dev/docs/openapi/python/clients/aiohttp.md): AIOHTTP client for Hey API. Compatible with all our features. - [Custom Client](https://heyapi.dev/docs/openapi/python/clients/custom.md): Learn how to create your own Hey API client. - [HTTPX Client](https://heyapi.dev/docs/openapi/python/clients/httpx.md): Generate a type-safe HTTPX client from OpenAPI with the HTTPX client for openapi-python. Fully compatible with validators, transformers, and all core features. - [Requests](https://heyapi.dev/docs/openapi/python/clients/requests.md): Requests client for Hey API. Compatible with all our features. - [urllib3](https://heyapi.dev/docs/openapi/python/clients/urllib3.md): urllib3 client for Hey API. Compatible with all our features. - [Configuration](https://heyapi.dev/docs/openapi/python/configuration.md): Configure @hey-api/openapi-python. - [Get Started](https://heyapi.dev/docs/openapi/python/get-started.md): Get started with @hey-api/openapi-python. - [Migrating](https://heyapi.dev/docs/openapi/python/migrating.md): Migrating to @hey-api/openapi-python. - [Output](http