> For the complete documentation index, see [llms.txt](https://developers.make.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.make.com/custom-apps-development-training/version-0-no-authorization.md).

# Version 0 (no authorization)

## Hello World

{% openapi src="/files/vBLr1qqePO99acjxPsQq" path="/helloworld" method="get" %}
[TKLOBOUCKOVA-helloWorld-1.0.0-resolved (1).yaml](https://3114796191-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgNTg64InL2Ea6QArLuAq%2Fuploads%2F82VIGGxv7eetEDgu5qg8%2FTKLOBOUCKOVA-helloWorld-1.0.0-resolved%20\(1\).yaml?alt=media\&token=760431e2-6afa-4f16-bb53-7b5f019cb63c)
{% endopenapi %}