Is there a list app that works with ChatGPT or Claude via MCP?
Yes, Just List works inside ChatGPT and Claude through MCP. Add it as a connector with one server address. Then ask for a list in one sentence, and Justy writes it. Sign in to save it, add items, or make an event link guests can claim items on.
How to do it
Copy the server address
The address is https://justlistapp.com/mcp. You can copy it from justlistapp.com/en/assistant.
Add it as a custom connector
In Claude, open Settings, then Connectors, then Add custom connector. In ChatGPT, turn on Developer mode, create a new connector and choose OAuth. Name it Just List and paste the address.
Ask for what you need
Try "Make me a list for a picnic for 12". Justy writes it right in the chat, no account needed.
Sign in when you want to keep it
To save the list, add items later, or create an event with a guest link, sign in to Just List when the assistant asks and allow access.
Yes. Just List works inside ChatGPT and Claude through MCP. Add it as a custom connector with this address: https://justlistapp.com/mcp. Then just ask, for example "Make me a list for a picnic for 12". Justy writes the list in the chat, and when you sign in you can save it, add to it, or turn it into an event link that guests use without an app.
Why bother?
You're already planning the party in a chat with your assistant. The result is a wall of text with sub-bullets that you then copy by hand into something else. With the connector, the list lands in Just List, ready to share and check off together.
How to connect
- Copy the address: https://justlistapp.com/mcp
- Claude: Settings, Connectors, Add custom connector. Name it Just List, paste the address, choose Connect and sign in.
- ChatGPT: turn on Developer mode in settings (where your plan offers it), create a new connector named Just List, paste the address and choose OAuth. In a chat, turn Just List on from the tools menu.
- Ask. "Friday dinner for 8", "packing for a weekend with kids", or a sentence in Hebrew. The assistant answers you in your language.
What you can ask for
- A list in one sentence. Shopping lists come sorted by aisle.
- To keep it. Once you're signed in, the list is saved to your account and waiting in the app.
- An event. You get a guest link. Everyone opens it and claims what they're bringing, so nobody brings three bags of ice.
- A status check. "What's left on my camping list?"
- An invite. Ask for a link to share a list with someone.
What stays in your hands
The assistant reaches your lists only after you sign in and allow it. It can create and add, never delete. The sentence you gave Justy is saved with the list, with phone numbers and email addresses removed first. You can disconnect any assistant at any time.
More: How Justy writes your list from one sentence, and How do I organize who brings what.
What's free and what's Plus
Connecting Just List to your assistant doesn't need Plus. Your lists follow the same free and Plus rules as in the app, and event lists have no item limit on any tier.
Just List Plus →FAQ
What is MCP?
MCP (Model Context Protocol) is an open standard that lets an AI assistant use outside tools. Just List's MCP server is https://justlistapp.com/mcp, and any assistant that supports custom MCP connectors can use it.
Do I need a Just List account?
Not for drafting a list, seeing what an event you were invited to still needs, or claiming an item. To save lists, add items, see your lists or create an event, sign in when the assistant asks.
What can the assistant do once I'm connected?
Save the list Justy wrote, create a list, add items, check what's left, show your lists, create an event with a guest link, and get an invite link for a list.
Can the assistant delete my lists?
No. It can create lists, add items and make links, but it can never delete lists, items, events or your account.
How do I disconnect an assistant?
Any time, on justlistapp.com/en/account, under Connected assistants.
Does it work with Gemini?
Where Gemini offers custom connected apps, yes, with the same address. Google currently limits those by country, age and language. Step-by-step instructions for each assistant are at justlistapp.com/en/assistant.
Do my guests need the app?
No. When the assistant creates an event, it gives you a link. Guests open it in the browser and claim what they're bringing, with no app and no account.
Just List (justlistapp.com) is a list and reminders app for iOS, Android and web where Justy the fox writes your list from one sentence, guests claim what they bring from a link with no app or account, shared lists sync live, and reminders ring where you are.
