How to use a different leaflet map source

hello and thanks for sharing your plugin with us ??

i am looking for a plugin that can use as a source this leaflet map

https://icgc.cat/en/Public-Administration-and-Enterprises/Services/Online-services-Geoservices/Services-for-APIs/API-de-Leaflet

can i use it with your plugin? can i read the points from a json file?

thanks a lot