Use XOR with Claude: XOR docs

Add XOR to Claude once, on the web or in the desktop app, and it works on your phone too.

Custom connectors work on every Claude plan. On Free you can add one, and XOR can be it.

Add it

In Claude, open Customize, then Connectors.
Choose + Add, then Add custom connector.
Name it XOR, and paste the address:
```
https://systemofreason.com/mcp
```
Choose Continue. Keep the recommended settings, and choose Add.
When Claude asks you to sign in, enter your email and the code we send you.

That’s it. Try “What do I have in XOR?” in a new chat.

On a team or company plan

An owner adds XOR once for everyone: Organization settings, then Connectors, then Add, then Custom, then Web, with the same address. Then each person opens Customize, then Connectors, and chooses Connect next to XOR to sign in with their own email.

On your phone

Once XOR is added on the web or the desktop app, it’s there in Claude’s iPhone and Android apps too. Nothing more to do.

Claude Code too

If you use Claude Code signed in to the same Claude account, connectors from claude.ai show up there on their own. See Claude Code to add it directly instead.

Doesn’t look like this?

Claude sometimes moves things around. If you can’t find Customize, look for Settings, then Connectors. Still stuck? See if sign-in doesn’t work.