Launching today
Kalender Sync
Sync your calendars & connect them to ChatGPT, Claude & Co.
13 followers
Sync your calendars & connect them to ChatGPT, Claude & Co.
13 followers
Keep Google, Outlook, iCloud and supported CalDAV calendars in sync, one-way or two-way. Choose what gets copied: busy only, title and time, or full details. Connect the same calendars to ChatGPT and Claude to check availability, find events and create new ones. Built for people juggling work, personal and client calendars, including GMX, WEB.DE, mailbox.org and kSuite. Set it up in minutes or by simply asking your agent.
Hey Product Hunt! I'm Paul, and together with Julius I build Kalender Sync.
We work across several ventures at once. That means work, personal and client calendars, spread across different providers. People kept booking over private appointments because one calendar showed us as free. And keeping everything up to date by hand got old fast. 🙃
We couldn't find a tool that handled this the way we wanted. So we built one. What Kalender Sync does:
Keeps your calendars in sync, one-way or two-way. Google, Outlook, iCloud and supported CalDAV calendars.
You decide what gets copied. Busy only, title and time, or full details. Your dentist appointment can block your work calendar without anyone seeing what it is.
Supports the providers others skip. GMX, WEB.DE, mailbox.org and kSuite work too, not just the big three.
Connects to ChatGPT, Claude and many more. Link the same calendars to your assistant to check availability, find events, create new ones and manage your syncs across all of them.
Ready in minutes. Set it up yourself, or simply ask your agent to do it for you.
Try it for free at kalender-sync.de, or connect it directly to Claude or ChatGPT.
Shipped with love from Munich 🥨💙
We'd love your feedback. Which calendars are you juggling right now, and where does your current setup fall short? Julius and I are here all day to answer questions!
🎁 Launch offer: Code PH50 gives you 50% off the first annual bill of a new Basic or Professional subscription.
Do you have an MCP to connect it to Grok Bot?
@michael_frohlich yes! you can add it as a custom connector with our MCP server: https://app.kalender-sync.de/mcp. let me know if you run into anything, happy to help!
Hey everyone, Julius here, the other half of Kalender Sync 👋 And thanks to everyone we've already heard from today!
Paul already told the story, but I want to add my share to it.
We built this for ourselves. We both work across several companies at once, each with its own calendar, and we were tired of double bookings and copying appointments around by hand. That pain is gone for us now, and honestly that alone made it worth it. 🙃
What I'm most excited about, though: you can set up and manage your syncs entirely through your agent. Because let's be honest, who actually enjoys spending time in their calendar settings? Maybe I should go touch some grass instead ;)
Another thing that makes me really happy is that we cover so many calendar providers. A good share of our users aren't on Google or Microsoft or Apple at all. They're on GMX, WEB.DE, mailbox.org, kSuite and others. Those providers will probably wait a long time for native AI features.
The feedback from exactly these users has been incredibly kind, and it's a big reason we're here today. Thank you to everyone who tested early, reported bugs and stuck with us 💙
If your calendar provider is one that usually gets forgotten, I'd love to hear which one. And if you're juggling calendars across several jobs, tell us how you handle it today. Any questions? Fire away!