- A Claude plan that includes Claude Code, such as Pro or Max (see Claude’s plans), or an Anthropic API key. Claude Code can sign in with either.
- Cost: nothing extra from Voyager. With a subscription, usage counts against your Claude plan’s own limits. With an API key, Anthropic bills you per use.
- You don’t need to install anything yourself. If Claude Code isn’t on your computer, Voyager opens a terminal with the official installer ready to run. It doesn’t need Node or any other developer tools.
- Prefer ChatGPT? See Connect ChatGPT. You can connect both.
What the Claude row shows
On Connect providers, the Agent section lists Claude first, described as Your Claude subscription, through Claude Code. The right side of the row tells you what to do:

Connect providers with Claude already detected: its row shows a green Detected badge.
Install Claude Code and sign in
Click Install


The setup terminal, with the installer typed in and waiting for you to press Enter.
Press Enter to install
Click Continue to sign in
claude auth login. (If the row showed Sign in to begin with, clicking it opens this same terminal.)Press Enter and sign in to Claude
Click Use subscription
Click Continue
Which model Voyager uses
Setup doesn’t ask you to pick a model. If Claude is connected, Voyager starts new chats on Claude Opus 5.5, even if you also connect ChatGPT or have a Voyager plan. To use something else, pick a different model in the chat box, or change the default in Settings → General, under Conversations → Model.Check it worked
- The Claude row on Connect providers shows a green check, and Continue is available.
- After setup, Settings → Accounts lists Claude as signed in.
- Your first chat opens on a Claude model.
If something went wrong
The terminal says “Could not open the setup terminal.”
The terminal says “Could not open the setup terminal.”
claude auth login, then click Refresh above the agent list.Sign-in finished, but the row still says Sign in
Sign-in finished, but the row still says Sign in
claude auth login again and make sure you signed in with the Claude account that has your plan.The row shows a warning instead of a check
The row shows a warning instead of a check
Continue stays off: “Connect at least one agent to continue.”
Continue stays off: “Connect at least one agent to continue.”