I am currently experimenting with adding support for open vsix to a plugins/extensions based app system which is capable to bridge vsx extensions to its own extensions mechanism.

I am currently missing to search by web-only extensions in the REST endpoints. I need to fetch the extension metadata and scan it to identify if they are web-only (extensionKind=web).
It would be great to extend the search endpoint to allow searching for a filtered or complete catalog of web-only extensions.