Cardle

Product guide · By Cardle

How Cardle works: save something useful, then revisit it

Cardle is a personal knowledge and reminder app. It keeps notes, learnings, bookmarks and work follow-ups in a daily feed you can review in a browser or through a connected AI assistant.

For example, a useful takeaway from an AI conversation can become a learning card; a link can become a bookmark; a follow-up can become a reminder. Cardle keeps those items together so you can return to them after the conversation ends.

How do I save my first card without AI?

You can use Cardle directly without connecting an assistant.

  1. Sign in with Google and complete the welcome steps. New accounts may join a waitlist if account capacity has been reached.
  2. Add a bookmark, reminder or learning using the app's card controls. Use something you actually want to revisit: a reading link, a call to make or a short note.
  3. Open your feed and find the card. Try pinning it, marking it as a favorite, or snoozing it until later.

To explore first, use the interactive sample feed. Sample cards are demonstration content, and changes made in that demo are not saved to an account.

How do I save something from an AI conversation?

Connect a compatible assistant to your Cardle account using the MCP setup guide. MCP, the Model Context Protocol, lets the assistant use Cardle's tools to read and manage your saved cards after you authorize access.

Once connected, ask explicitly for the useful information to be saved in Cardle. For a first test, use a specific reminder:

“Add a reminder in Cardle to call the dentist tomorrow.”

Then open Cardle and check that the reminder and its date are correct. An assistant's answer alone is not a substitute for checking the saved item.

You can also ask for a takeaway to be saved as a learning or a URL as a bookmark. Cardle stores the information you choose to save; it does not automatically archive every conversation.

Can I retrieve the same note from another AI assistant?

Yes. Connect both assistants to the same Cardle account, then ask the second assistant to retrieve your saved cards from Cardle.

“What's in my Cardle feed today?”

For example, an item saved through Claude can be retrieved through ChatGPT when both have access to that account. The shared source is your Cardle data. The assistants do not receive each other's entire chat histories through this connection.

If an item is missing, check that it was saved successfully and that both connections use the same Google account. Connector availability depends on the assistant and your plan or workspace settings.

How does the daily feed help me revisit saved information?

Cardle brings your pending cards into a review feed. Bookmarks sit alongside reminders, learnings and work follow-ups, so reviewing them does not require opening a separate app for each type of item.

  • Pin an important card to keep it prominent. You can pin up to three cards.
  • Snooze a card when you want to revisit it later.
  • Favorite a card you want to keep close.

Start with a few real items and review the feed the next day. The useful habit is deciding what deserves your attention, not collecting as many cards as possible.

What should I know before connecting my tools?

  • AI is optional. Cardle's personal web app is currently free. AI providers may have separate costs and connector requirements.
  • Access is account-specific. Sign-in uses Google, users must be 18 or older, and new accounts may be waitlisted when capacity is reached.
  • Connections require setup. Cardle does not automatically read every AI chat or connect to every app. GitHub Issues is a supported source you configure separately.
  • Connected assistants process relevant card content. When you ask an assistant to read or change cards, that content passes through its provider. See assistant privacy details and service providers.
  • Saved reminders appear in the feed. A saved reminder does not by itself promise an email, phone notification or calendar event.
Save your first item in Cardle ↗