There has always been a "Memento API" that remained in beta testing for years. Presumably, there have been users of this beta. Maybe it's out of beta by now?
Also, there has been a Memento Server option, whatever that is. Presumably also users of it. I don't know of any.
In addition, within our plain old Memento, there have been plans, and starting I believe with the Team plan, which has I believe been renamed the Business plan, there have been capabilities, including user permissions, that haven't been available to lower plan members.
Now since I (like I'm sure almost all of us) can "see" only into the plans and products we have adopted, we have little ability to understand all the implications of all the other products and plans, and we seldom inform each other of what products and plans we have and what versions of platforms were are on when we ask for help. Due to my work on the wiki in 2015-2022, I had a Team plan, so I could test wiki documentation in that context. I no longer have that. At least, I don't think I do.
Is there documentation of each of these products, APIs, and implications of the plans that I'm not aware that explains all this for all of us that are not taking advantage yet of those products, APIs, and plans? I doubt it, partly because I've never seen it and partly because if there were, this thread would be largely redundant with that.
If there were people among us with access to such products, APIs, and plans who could provide user-supported documentation of all this, well, we'd have something like a wiki again, one that encompasses all Memento capabilities.
I'm working on a knowledge base these days with workflows very much like that of the wiki, but with AI and other features. It uses tools based on Android, MacOS, and Windows, with some Linux and iOS support. The tools so far are free, run on local, private data, using a local AI LLM, so it's a very safe place, so long as I take proper care to back it up regularly. Though I'm developing it for myself, it should act as a very applicable model for a replacement of the wiki that doesn't depend on MediaWiki, which cats seemed to have some trouble with, and if that effort were ever to be undertaken, I would gladly support any such effort.
I gather from a remark by Vasya that he may be also working on such a replacement. Of course, he and any staff he brings to bear will have access to all Memento information. I just don't know if or when that might happen, so I'd personally like it if some users among us would undertake the task. E could host it ourselves for free, if Vasya doesn't want to do it. The current archive of the old wiki is not complete, up-to-date, or user-friendly (he says sadly).
Thanks for this thread though. Very informative.