Claude Code

One command, with your token in it.

Add it

Create a token on the dashboard's Tokens page and put it where tt_live_… is:

terminal

claude mcp add --transport http browser \
  https://tabtunnel.dev/v1/mcp \
  --header "Authorization: Bearer tt_live_…"

browser is the name Claude Code will show for it; call it what you like. Adding --scope project saves it in the current repository's .mcp.json instead of your own settings — but that file then contains your token, so do not commit it.

Check it worked

terminal

claude mcp list

Then, in a session, ask it to list your browsers. Yours should come back with the name you gave it during setup. If it has not been used for a while, the first command takes a few seconds.

If it does not work

`401` Unauthorized	The token no longer works. Create a new one on Tokens and put it in place of the old one.
No browsers listed	The token is for a different organization from your browser. Check which organization is shown at the top of the dashboard, then create the token there.
Your browser is `offline`	Open Chrome and check the TabTunnel extension is signed in. `connected` and `reachable` both mean it is ready.
Chrome asks about a site	Answer it and the agent carries on. This happens the first time an agent visits a site, unless you chose Allow everything during setup.

Next: what it can do.

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