Claude Code Attic Resource/The Numbers
How to: Claude Code Attic The Numbers
Add Attic to Claude Code
-
01
Run this in your project directory.
claude mcp add --transport http attic https://mcp.atticcapital.com/mcp-
02
Restart your session so the server is picked up.
-
03
The Numbers is surfaced wherever your client lets you attach context. It is context to attach, not an action to run.
-
04
If it does not appear, check that Attic is connected and that you are looking at its resources rather than its tools.
Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs
Set these first
Attic will not start until these are set, so it never reaches Claude Code.
-
ATTIC_API_KEY
Same resource, other clients
Read from the server itself, by connecting to it and calling resources/list on 20 October 2026.
A listing does not declare its resources, so asking is the only way to know them, and this
is what the server actually offers rather than what its listing claims. Names only are
stored; connect the server for each resource's type and contents.