All servers · Travel & booking · Email & messaging

CallChatSyn

com.callchatsyn/callchatsyn · v0.1.0

Measured by MCP Station

Description written by the publisher, not verified

Answer small-business customer questions from FAQs, list open appointment times, and book them.

Connect

claude mcp add --transport http callchatsyn https://callchatsyn.com/api/mcp

{
  "mcpServers": {
    "callchatsyn": {
      "url": "https://callchatsyn.com/api/mcp"
    }
  }
}

Tools as reported by the server

• answer_customer_question
  Answer a customer's message for one small business using only that business's own FAQs and order records. Rule-based, not generated, so it never invents prices or opening hours; English and Chinese are detected automatically. Read-only: it never books or changes anything. Use it first for any custom
• list_open_times
  List the business's next open appointment times: up to 5, soonest first, within the next 7 days, labelled in the business's time zone, plus its services and locations. Read-only. Call it before book_appointment and whenever a customer asks when they can come in. Times come from the business's CallCh
• book_appointment
  Book one appointment for a customer. This creates a real booking: the business is notified, and if it has connected Cal.com the booking is created there too. With the demo key it's a dry run that books nothing. Not idempotent: booking the same time twice fails the second time. Only call it after the
• cancel_appointment write/delete
  Cancel one of the business's bookings by the 'id' that book_appointment returned. This changes data: the time becomes free again, and if the business has connected Cal.com the booking is cancelled there too (Cal.com emails the customer). Only call it after the customer has clearly asked to cancel th

Repository · Website · JSON · Text for agents · Registry updated 2026-10-06