Learn your lines in ChatGPT and Claude

Connect Offbook to ChatGPT or Claude, then ask for help with your lines. Offbook opens your scene, reads the other roles aloud, and listens while you say yours, so you can run lines any time, with no one else in the room.

What it does

In ChatGPT
The Offbook app opens right in the chat, signed in to your account, ready to rehearse.
In Claude
A card appears in the chat. Click Open Offbook and Offbook opens in a browser tab, already signed in, at your scene.

Either way, you rehearse in Offbook itself: the same scene partner, voices, and practice screen as on the web.

Connect Offbook to Claude

  1. 01

    In Claude (web or desktop), open Customize, then Connectors, then Add custom connector. Or use the Add Offbook to Claude link, which fills it in for you.

  2. 02

    Name it Offbook and enter the URL https://api.offbook.com/mcp. Leave the advanced settings empty.

  3. 03

    Click Add, then Connect. The Offbook page opens: sign in to your Offbook account and click Allow.

  4. 04

    In a new chat, turn on Offbook from the connectors menu (the + button), then ask for help with your lines.

Connect Offbook to ChatGPT

  1. 01

    Offbook is coming to the ChatGPT app directory.

  2. 02

    Once it is listed, open Apps in ChatGPT, search for "Offbook", and click Connect.

  3. 03

    Sign in to your Offbook account on the Offbook page and click Allow.

What the assistant can do

  • Open Offbook: Opens your Offbook library, signed in to your account.
  • List your scripts: Tells you which scripts are in your library and the roles you play.
  • Open a script: Opens one of your scripts, ready to rehearse.
  • Add a script: Adds a script you attach in the chat (PDF, TXT, PNG, or JPG) or paste as text. Offbook finds the characters and lines, then opens the new scene.

The assistant cannot delete or change anything in your account.

Things to ask

  • “Open Offbook so I can rehearse my scene.”
  • “Help me memorize my lines for this script.”
  • “What scripts do I have in Offbook?”
  • “Add this script to Offbook so I can practice it.”

What you need

  • •An Offbook account. You can create one here.
  • •A paid Offbook plan to add new scripts. Opening Offbook and your existing scripts works on any account. See plans and pricing.
  • •A laptop or desktop computer with a microphone, to rehearse out loud.

Privacy

  • •When you connect, you sign in to Offbook and allow the assistant to act for you.
  • •The assistant can see the titles and roles of the scripts in your library, add a script you attach or paste, and open Offbook signed in to your account.
  • •A script the assistant adds is handled like any other upload, under our privacy policy. What you share with the assistant itself is handled by OpenAI or Anthropic under their own privacy policies.
  • •We keep a record that you connected an assistant and which Offbook features it used.
  • •You can disconnect at any time in the assistant’s settings. Offbook’s access tokens expire after one hour, and the assistant’s sign-in expires after 90 days without use.

Our privacy policy has the details.

Questions

Does ChatGPT or Claude run my lines with me?

No. Offbook does. The assistant opens your scene in Offbook, and Offbook reads the other roles aloud and listens while you say your lines.

Can the assistant delete or change my scripts?

No. It can list your scripts, open them, and add new ones. It cannot delete or change anything.

Does connecting cost extra?

No. The connector uses your Offbook account and the plan you already have.

How do I disconnect Offbook?

Remove or disconnect Offbook in the connector or app settings of ChatGPT or Claude. You can connect again at any time.

Support

Questions or problems with the connector? Email hello@offbook.com or visit the help center.