Can't install my own unverified plugin

I’m building my second plugin. I did the localhost testing and now want to install it as an unverified plugin to continue the testing.

But when I click the Find Plugin button I receive the “404 Not Found” error. Please see the screenshots.

The plugin is hosted at

I double-checked the content of the manifest and openapi files, and everything looks good. Please help, what am I doing wrong?

That’s my second plugin, could that be the reason? Are there any restrictions on how many plugins a developer can build?

It seems like I got it. First, I have to install it using the “Develop your own plugin” option. Then, I’ll be able to install it as Unverified plugin.

The issue is solved.