Connect your AI

Give Claude this one address. It will ask you to sign in with Google, and from then on it can read and change the notes on your own board — nobody else's.

No API keys, no tokens to paste. Changes show up in any Crumple tab you have open.

The connector reaches the same board as the app, so it needs the same subscription. Without one it answers every request by saying so, rather than failing silently.

Claude

Works on every Claude plan, the free one included (free accounts can add one custom connector). Add it on a computer, at claude.ai or in the Claude desktop app; after that it works in Claude on your phone too. On a Team or Enterprise plan an owner has to add it first.

1. Open Customize, then Connectors.
2. Choose Add, then Add custom connector.
3. Name it Crumple, paste the address above and press Continue. If it asks how to sign in, keep what it detected, or pick Register automatically.
4. Press Add, then Connect, sign in with Google and approve.
5. In a chat, turn Crumple on from the + menu, under Connectors.

ChatGPT

Only on ChatGPT Business, Enterprise and Edu for now, on the web, and only a workspace admin or owner can add it. OpenAI does not let personal accounts (Free, Go, Plus or Pro) add a connector that can change things, so Crumple will not work there yet.

1. On chatgpt.com, open Plugins, press the plus button and choose Add custom MCP server.
2. Name it Crumple. Under Connection, paste the address above.
3. For authentication choose OAuth, tick the box that says you understand the risk, and press Create as a plugin.
4. Sign in with Google and approve. In a new chat, type @ and pick Crumple.

These menus move. Checked against Anthropic's and OpenAI's own help pages on November 12, 2026.

Signing in connects the Crumple account with that Google address. Sign in with a different account and you get that account's board instead.