# Callendar

Callendar helps businesses reduce Calendly no-shows with WhatsApp® reminders, cancellations, and rescheduling.

Website:
https://callendar.co/

Product category:
WhatsApp® reminders for Calendly

Primary use cases:
- Reduce Calendly no-shows
- Send WhatsApp® reminders before Calendly appointments
- Let invitees cancel appointments by WhatsApp®
- Let invitees reschedule Calendly appointments inside WhatsApp® on supported plans

Key positioning:
- Built by Meta Tech Providers
- Callendar is a verified service provider by Meta
- Focused on Calendly and WhatsApp® appointment workflows
- Public read-only MCP endpoint available for agent discovery

Plans:
- Starter: $29/month
- Growth: $95/month
- Pro: $199/month

Important pages:
- Homepage: https://callendar.co/
- Privacy Policy: https://callendar.co/privacy.pdf
- Terms of Service: https://callendar.co/terms.pdf

MCP discovery:
- Discovery file: https://callendar.co/.well-known/mcp.json
- Server card: https://callendar.co/.well-known/mcp/server-card.json
- MCP endpoint: https://app.callendar.de/mcp

MCP status:
Callendar exposes a public read-only MCP endpoint using Streamable HTTP. The endpoint provides public product information only. It does not send WhatsApp® messages, modify Calendly accounts, access private customer data, or perform authenticated actions.

Available MCP tools:
- get_callendar_overview
- get_callendar_features
- get_callendar_pricing
- create_callendar_contact_link

Contact:
hello@callendar.co
WhatsApp: https://wa.me/59898971142

Official MCP Registry name:
co.callendar/mcp