# rut-kit > Chilean RUT validation with descriptive errors for JavaScript and TypeScript Fast, lightweight, with Zod support. ## Documentation - [Express & Hono](/en/integrations/backend.md) - [For AI Assistants](/en/guide/llms.md) - [Formatting](/en/guide/formatting.md) - [Getting Started](/en/guide/getting-started.md) - [Next.js](/en/integrations/nextjs.md) - [React](/en/integrations/react.md) - [React Hook Form + Zod](/en/integrations/react-hook-form.md) - [rut-kit](/en/api/rut-kit.md) - [rut-kit/zod](/en/api/rut-kit-zod.md) - [Validation](/en/guide/validation.md) - [Zod](/en/guide/zod.md)