Every AI is its own island
What you tell ChatGPT, Claude never hears. Each assistant keeps its own history and its own memory, and none of them share.
The problem
You decide things everywhere. Nothing keeps track.
Most of us now work across several AI assistants and a handful of apps. Each one holds a piece of what you meant to do, and there's no single place to see it all or pick it back up.
Good intentions sink in the scroll
“Remind me Friday.” “Read this later.” The thing you just learned. Said once in a chat, then buried under the next conversation.
Your apps don't add up
Reminders in one app, bookmarks in another, issues in GitHub. Seeing everything means opening everything, so most of it waits unseen.
Cardle is the one place they all write to. Save from any assistant or by hand, bring in sources like GitHub, review everything in one feed, and pick it up again from whichever AI you're in.
The real product
Everything lands in one feed.
Try the actual Cardle feed. Favorite, snooze, or clear a card; nothing you do in this demo is saved.
This is the real feed. Play freely—nothing you do in the demo is saved.
Make it yours ↗How it works
Capture once. Meet it again.
01
Bring it in
Add it yourself, ask a connected assistant, bring in another source, or request fresh picks.
02
Keep it together
Reminders, work, learnings, bookmarks, and issues share one feed.
03
Review calmly
The daily feed brings pending things back before they quietly disappear.
04
Keep showing up
Your streak rewards showing up, not reaching an impossible inbox zero.
Use the interface you already have
Every AI you use, one shared feed.
Save a link in Claude. Find it again in ChatGPT. Open it in Cardle. Watch the same saved item move across all three, then connect your assistants to your own shared feed.
- “What's on my plate?”
- “Save this for later”
- “Add this for Friday”
One real example, from a conversation to your daily feed.
Three ways in
One feed. Any interface.
Start with the web app, work through an AI assistant, or build your own on Cardle's API.
01 · DirectAvailable
Use Cardle
Capture and review directly in the web app. Cardle is the interface; you decide what happens next.
- Snooze a card, pin up to three, or delete it for good
- One feed for reminders, learnings, bookmarks, and connected sources
- Google sign-in, with nothing to install
02 · AssistedAvailable
Use Cardle through AI
Use Claude, ChatGPT, or Gemini as the interface to capture, retrieve, organise, or act on your cards.
- Add reminders, save links, and log learnings conversationally
- Snooze, pin, and favorite the same way the app does
- One MCP connection, then sign in once
03 · ExtendComing soon
Build on Cardle
Connect Cardle to your own data and workflows. You define what enters the feed and what happens next.
- Wire Cardle into your own tools and data
- Build with AI agents on top of your feed
- Tell us what you'd make, and help shape it
Meet Cardle
What is Cardle?
Cardle is a personal knowledge and reminder app that brings notes, learnings, bookmarks and work follow-ups into one daily feed. Save items in the web app or through an AI assistant connected over MCP, then review, snooze, pin or favorite them in Cardle.
It's for people whose useful information is scattered across conversations and apps. You choose what to save; connecting an assistant does not automatically import your entire chat history.
See how to save and revisit your first item ↗Before you start
Questions about Cardle
Can I use Cardle without an AI assistant?
Yes. Sign in with Google and add and review your cards directly in the web app. Connecting an AI assistant is optional. You can also try the sample feed without signing in; demo changes are not saved.
Can I save in one AI assistant and retrieve from another?
Yes, when both assistants are connected to the same Cardle account. Ask one connected assistant to save a note or reminder, then ask another to retrieve it from Cardle. This shares the items you save, not the assistants' full conversation histories. See the MCP connection guide.
Does Cardle automatically read all my AI chats?
No. An assistant connection lets you ask that assistant to read and manage your Cardle cards. It does not give Cardle automatic access to your past chats. Save the useful information you want to keep, or configure a supported source such as GitHub Issues.
How is Cardle different from saving a bookmark?
A bookmark keeps a link. Cardle puts bookmarks alongside reminders, learnings and work follow-ups in a daily review feed. You can snooze a card for later, pin it or mark it as a favorite to help you revisit it.
Is Cardle free, and how do I start?
The personal web app is currently free and uses Google sign-in. You must be 18 or older. If account capacity is reached, new users join an access waitlist. Your AI provider may have separate plan or connector requirements. Start with the web app.
Who can access my saved cards?
Each Cardle account has its own data. An AI assistant can access your cards only after you connect it. When you ask it to read or change cards, the relevant content passes through that assistant's provider under its own terms. Read how assistant access works and the service provider details.