Hello,
Scratch is a simple javascript tool that you simply can try online without any account subscription. I just created a custom extension that make it possible to interact with your Jeedom ! Here are few steps to configure the extension:
- go to the online Scratch 3.0 GUI
- click the icon to add extensions and add the ‹ Jeedom › one
- enjoy !
Here is the first step to generate the Jeedom API call: you will need the Jeedom URL and API key (menu Reglage / Systeme / Configuration / API)
The first result will be some Json text
Next, you may want to add a custom block to make it easy to repeat several differents calls to your Jeedom:
When this first step is ready, you can now browse every items from the Json to get a list of yours Jeedom commands, or devices, or plugins, or whatever is available thru the API
Scratch only has simple variables and lists, it’s quite simple to use 
I didn’t made any command change until now, but let’s try and tell me what we can do with it. Let your childrens play with it 
it uses the Jeedom Json RPC API, you can use any keyword to get commands, devices, scenarios, messages and so on…
https://doc.jeedom.com/en_US/core/4.4/jsonrpc_api
It’s a draft, feel free to improve the extension with github PR
Have fun !