Calendar infrastructure

A calendar API designed for AI agents.

Connect every calendar. One unified API. Your agent handles the rest.

Open Beta
Start 30-day free trial

30-day free trial. Billed only if you stay.

What do you need?

One API. Every calendar.

Query events, check availability, detect conflicts, book slots. Across Google, Microsoft, Apple, CalDAV, and iCal feeds.

check-availability.sh
# Check availability across all calendars
curl "https://calmesh.xyz/api/v1/calendars/work/availability?date=2026-03-15" \
  -H "Authorization: Bearer cm_live_..."

# Response
{
  "date": "2026-03-15",
  "slots": [
    { "start": "09:00", "end": "09:30" },
    { "start": "10:30", "end": "11:00" },
    { "start": "14:00", "end": "14:30" }
  ]
}
MCP Server — Claude Desktop
npx @calmesh/mcp-server --api-key cm_live_...

Setup in 60 seconds

1

Sign up and connect your calendars

2

Generate a scoped API key

3

Configure your MCP server or call the REST API

Pricing

All your calendars, unified. For less than a coffee a month.

30-day free trial. Billed only if you stay.

Agent

For developers & AI builders

EUR 8/year
  • 2 calendar sources
  • REST API + MCP server
  • Webhooks
  • Scoped API keys
  • iCal feed
Start Free Trial

Pro

For freelancers & consultants

EUR 24/year
  • Everything in Agent
  • Booking pages
  • Embeddable widget
  • Email notifications
Start Free Trial

Business

For teams wanting support & admin

EUR 48BETA
EUR 15/year
  • Everything in Pro
  • Teams & multiple handles
  • AI-first support (48h SLA)
  • Team admin dashboard
Start Free Trial

Trust by design

🇪🇺German company, GDPR by default
🔒We store availability, not your event details
🏠Self-hostable option coming soon

Stop worrying about calendar integrations. We got you.

60 seconds to connect. Zero maintenance forever.

Open Beta
Start 30-day free trial

30-day free trial. Billed only if you stay.