> ## Documentation Index
> Fetch the complete documentation index at: https://docs.littledemo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# OpenAPI

Use the generated LittleDemo OpenAPI specification.

LittleDemo publishes an OpenAPI 3.1 spec:

```text
https://littledemo.com/openapi.json
```

HolyDocs uses that spec to generate the endpoint reference in this docs site.

## Validate the spec locally

```bash
npx @holydocs/cli openapi-check https://littledemo.com/openapi.json
```

## Use it for clients

You can feed the spec into your preferred OpenAPI generator.

```bash
npx openapi-typescript https://littledemo.com/openapi.json -o littledemo-api.d.ts
```

## Hand-written pages vs generated pages

The generated reference is the source for exact request and response shapes. The hand-written API pages explain how endpoints fit together in real workflows.