There is a new MCP for planning events with friends: Junto has a built-in connector for AI assistants like Claude and ChatGPT. Your assistant can create a shared group calendar, add events, RSVP for you and tell you who is coming and who has not answered.
Creating the calendar is free. Letting the assistant read and change it is part of a one-time $4.99 plus tax unlock, with no subscription.
Two minutes to connect. Your friends still just open a link and type a name.
MCP stands for Model Context Protocol. It is an open-source standard for connecting AI applications to outside systems, and its own site compares it to a USB-C port for AI: one standard plug instead of a custom cable for every app. Anthropic introduced it in November 2024.
In practice it means your assistant can do more than talk. Once you add an MCP connector, the assistant can look things up in another service and take actions there for you, with your say-so.
It turns the planning chatter into one request. Instead of scrolling a group chat to find out who said yes, you ask your assistant, and it reads the calendar for you.
Here is what the assistant can do, based on the tools the connector actually exposes:
Ask in your own words. These are the kinds of requests the tools are built for:
There are two connectors. The free one is at https://tryjunto.app/mcp and needs no sign-in: it lets an assistant create a calendar and fetch the payment link. The personal one comes after the unlock: you open your calendar, tap AI, copy your personal connection link and add it to your assistant as a custom connector.
The step-by-step guide with pictures is on the Connect your assistant page. If you want to see the technical side, read the group calendar MCP server page.
Creating a calendar through your assistant is free, and so is the calendar for up to 8 members. A public calendar has no member limit and is free too.
The unlock is $4.99 plus tax, one time, no subscription, per calendar. It removes the 8 member limit and turns on AI access, so your assistant can read events, add events and RSVP. If your group is bigger than 8, your assistant can fetch the Stripe payment link, and you pay it yourself. The assistant never pays for you.
It cannot delete events, remove members or change calendar settings. You do those in the calendar itself. It cannot RSVP for other people, and it cannot pay.
The calendar has no chat, no shopping lists, and no two-way sync with Google or Apple Calendar. If you need those, this is the wrong tool. Also note that Meta's Muse works too: its custom connector form takes a server URL and an API key, and the connector accepts both.
The personal link is the key to your seat on the calendar, so treat it like a password. It lets the assistant act as you with the same rights you have, and nothing more. Only a hash of the key is stored on the server, and you can make a new link at any time, which stops the old one at once.
No password to another service is involved. The connector is built in and official, so you are not handing a login to a third-party tool.
Two minutes to connect. Your friends still just open a link and type a name.
It is an MCP connector that lets an AI assistant work with a shared group calendar. Junto offers one: your assistant can create the calendar, list events, show who has not answered, add events and RSVP as you. Add the free connector to your assistant, then ask it to set up your first calendar.
Claude, ChatGPT and Claude Code can add a connector by URL, and Junto is built to work with them. Meta's Muse works too: its custom connector form takes a server URL and an API key, and the connector accepts both. Check your assistant's connector menu, which changes often, then paste the link from the Connect page.
No. Asking an assistant to create a Junto calendar is free, and a private calendar is free up to 8 members. Reading and changing a calendar from your assistant needs the one-time unlock: $4.99 plus tax, no subscription. Try the free connector first and decide later.
No. Only the person who wants help planning connects an assistant. Everyone else opens the invite link in a browser and types their name, with no account and no app. Junto shows everyone the same calendar. Send the invite link to your group chat and carry on.
No. The assistant answers only as you, with going, maybe or not going. It cannot answer for other members, so every friend still gives their own reply. Junto does show you who has not answered yet, so ask your assistant for that list and nudge them yourself.
No, it has no delete tool. It can add events and RSVP as you, and it should confirm details with you before it adds one. If an event needs to go, you remove it in Junto yourself. Ask your assistant to double check the title and date before it saves anything.
No. Junto is its own shared calendar with RSVPs, and it has no two-way sync with Google or Apple Calendar. The assistant works on that calendar only. If you need your personal calendar merged in, add the calendar’s one-way sync link to your own calendar app.
Anyone with it could act as you on that calendar, so treat it like a password. Open the calendar, tap AI, and make a new link. Junto stops the old link at once. Then update the connector in your assistant with the new link.
A private calendar is free up to 8 members. The one-time $4.99 plus tax unlock removes that limit for the calendar, and public calendars never have a member limit. Junto counts members on the calendar, not assistants. If you expect more than 8, tell your assistant before it creates the calendar.
Sources
Last updated 2026-11-06