Be in sync with Reality
One place to coordinate shared schedules, automate repeat work, and connect the tools that shape your day — without adding complexity to get there.
Three ways in
Same product, same plans. Start with the setup that matches how you work.
Connect Claude, Cursor and your own agents with scoped, reviewable access to your calendar.
One shared timeline for school, routines and plans.
Let clients book themselves and keep your team in sync.
THE PROBLEM
up to 78
MCP tools for AI agents, depending on your account
56
permissions you can grant an MCP agent, one by one
21
Screens widgets
12
automation triggers
Real workflow example
Prime Calendar helps the shared timeline, booking flows, reminders, and connected tools stay in sync when a plan changes.
Calendars synced through External Sync with Google or Microsoft.
A booking link confirms an event on the shared timeline.
An automation rule sends reminders and status updates.
Primecal MCP and API workflows can push the event into connected tools.
What you can do
Prime Calendar keeps the fundamentals obvious, then opens up more power for people who need shared visibility, booking, and integration workflows.
CAL
Keep personal, shared, and operational calendars visible in one place without losing the context behind each event.
AUTO
Build rules that respond to schedule changes, trigger reminders, and move repetitive follow-up work out of the manual loop.
NOTIFY
One place to route in-app and push notifications, with priority levels and quiet hours so only what matters gets through. Planned: email, Slack and Teams channels (not available yet).
SHARE
Coordinate with family members, colleagues, and teams using views and permissions that make shared planning easier to trust.
BOOK
Publish booking links, confirm appointments, and keep availability aligned with the reality of the calendar.
TASK
Keep planning notes, quick captures, and follow-up tasks close to the event or routine they depend on.
MCP
Connect Prime Calendar to external tools, agent workflows, and documented endpoints without losing control over permissions.
SCREENS
Pair any spare screen with an 8-character code and turn it into a live, read-only dashboard — no login needed on the device itself.
Primecal MCP
Choose the exact resources and actions an agent or connected tool can reach before you issue access.
Create and rotate managed keys so connected workflows stay reviewable and easier to operate.
Start from generated Primecal MCP configuration instead of rebuilding the connection details by hand.
Power-user note
Primecal MCP includes scoped permissions, key management, generated MCP configuration, and companion Agent API documentation.
Prime Calendar can connect to your Google Calendar, so your Google events appear alongside your Prime Calendar ones and stay in sync in both directions. Connecting is optional, and you choose which calendars to synchronise.
When you connect, Prime Calendar accesses your Google account's name, email address and profile picture, and the events in the calendars you select: their title, description, location, times, recurrence, reminders, organiser and attendees. We use this only to show and synchronise your events, display your availability, create and update the events you ask for, and send the reminders you set.
We never sell Google user data, never use it for advertising, and never use it to train AI or machine-learning models. You can disconnect at any time in Prime Calendar or in your Google Account permissions.
Prime Calendar's use and transfer to any other app of information received from Google APIs will adhere to the Google API Services User Data Policy, including the Limited Use requirements.
Prime Calendar (PrimeCal) is developed and operated by Péter Cselőtei.
Read how we handle Google user dataBuilt for your reality
For technical teams
Prime Calendar keeps external sync, automation, and agent access visible enough to use without burying the rest of the product under setup complexity.
Need a custom workflow? Prime Calendar supports generated MCP configuration, webhooks, and open API docs.
Pricing
€0Forever
A lightweight way to try shared planning, routines, and automation before you commit.
No credit card needed
€40per year + VAT
€3.33/mo + VAT
2 months freeAI agents, external sync, and unlimited automation for individual power users.
Secure payment via Paddle · 14-day money-back guarantee · Cancel anytime, Free stays
€99per year + VAT
€8.25/mo + VAT
−31% · €45 savedShared planning, routines, and screens for households, with room for the whole family.
Secure payment via Paddle · 14-day money-back guarantee · Cancel anytime, Free stays
€299per year + VAT
€24.92/mo + VAT
−14% · €49 savedBooking, staff roles, and payments for operational teams and service businesses, at one flat price.
Secure payment via Paddle · 14-day money-back guarantee · Cancel anytime, Free stays
Contact Sales
Custom limits, governance, and rollout support for larger organizations.
All prices exclude VAT. Applicable local VAT/Sales Tax is calculated and added at checkout. Our order process is conducted by our online reseller Paddle.com. Paddle.com is the Merchant of Record for all our SaaS subscription orders.
Without that checkbox, they just join your group and can stay on Free. A seat unlocks plan features for them; calendar sharing is a separate thing and does not use a seat. Family has 5 seats, Store has 20.
FAQ
Yes. Prime Calendar supports External Sync with Google and Microsoft so existing calendars can stay aligned with the shared timeline.
Primecal MCP gives external tools and agent workflows controlled access through scoped permissions, managed keys, and generated configuration.
Yes. Automation rules can react to calendar changes, send reminders, push status updates, and connect schedule events to webhook-based workflows.
Prime Calendar is designed to reduce planning friction with cleaner visibility, repeatable routines, shared calendars, and reminders that keep the next step clearer.
