The memory behind the assistant you already use.
Say it to Claude, on your phone or in your terminal, and den keeps it: what was said, what changed, who changed it, and every earlier version. The people you choose see the same thing from their own assistant.
den is by invitation while it is young. Ask for an account and a person answers. Already invited? Sign in.
The same memory, two doors.
A house is not asked to learn a developer's words, and a developer is not asked to read about groceries. Each door has its own page and its own install.
den for households
Groceries, who lives here, who to call, what is due, what happened. Everyone at home sees it from their own phone.
See den for households →
›_den for software developers
Status, journal, spec, decisions. A session starts where the last one stopped, and nobody re-explains the project.
See den for software developers →
Whatever you keep, den keeps it the same way.
Every change has a history
Who changed what, when, and what it replaced. Nothing is deleted for good; the earlier version is a click away.
Two writers, nothing lost
A person and an assistant, or two people, can write at the same time. A write that would overwrite someone else is refused and says so.
One address, every assistant
Add den to Claude once, in a browser, and it is there on the phone, in the terminal, and in any assistant that can add a connection.
Yours to take
Everything den keeps downloads as ordinary files. Nothing is locked in a format only den can read, and the same den runs in your own cloud account.