Open-source scheduling that people and AI agents can both use.
Share a booking link, let invitees pick a time that actually works, and let your AI assistant check availability and book meetings through a standard API and MCP interface. Self-host it for free, or use our managed cloud.
What the product does
Hourmere connects to your work calendar and turns the back-and-forth of finding a meeting time into a single link.
Booking pages
Create event types (for example, 15, 30 or 60 minutes), set your working hours, buffers and daily limits, and share a personal booking link.
Calendar sync
Two-way sync with Google Calendar and Microsoft 365, so invitees only see times when you are actually free.
Reminders and time zones
Automatic confirmations, reminders, rescheduling and cancellation links, with time-zone handling for invitees anywhere.
API and MCP for AI agents
AI assistants can list availability, create, reschedule and cancel bookings through an API key and a remote MCP server.
Self-hosted or cloud
Run the open-source edition on your own server with one Docker Compose command, or let us host it for you.
Embeds and teams
Embed booking on your website, and use round-robin and collective scheduling for teams on paid plans.
Pricing
The self-hosted open-source edition is free. Cloud plans are billed monthly or annually in US dollars, per seat.
Free
- Unlimited event types and bookings
- Google and Microsoft calendar sync
- Email confirmations and reminders
- Website embed
- Basic API and MCP access
Pro
- Everything in Free
- Remove Hourmere branding
- Custom domain and email templates
- Zoom and Google Meet links
- Webhooks and higher API limits
Team
- Everything in Pro
- Round-robin and collective events
- Team management and analytics
- Priority support
Applicable sales tax or VAT may be added at checkout depending on your location. Subscriptions can be cancelled at any time and remain active until the end of the paid period. See our Refund & Cancellation Policy.
About the company
Cobaltmere, LLC is a Delaware limited liability company that develops and operates software products. Our first product is Hourmere, open-source scheduling and appointment booking software for individuals and businesses worldwide.
Contact
For product questions, early access, billing or support, email us and we will reply within one business day.