Claude Code BorealHost Resource/Error Codes
How to: Claude Code BorealHost Error Codes
Add BorealHost to Claude Code
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01
Run this in your project directory.
claude mcp add --transport http mcp https://borealhost.ai/mcp/-
02
Restart your session so the server is picked up.
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03
Error Codes is surfaced wherever your client lets you attach context. It is context to attach, not an action to run.
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04
If it does not appear, check that BorealHost 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
BorealHost will not start until these are set, so it never reaches Claude Code.
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BOREALHOST_API_KEY
Same resource, other clients
Read from the server itself, by connecting to it and calling resources/list on 24 September 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.