CallChatSyn

Connect Remote server

claude mcp add --transport http callchatsyn https://callchatsyn.com/api/mcp --header "Authorization: Bearer <YOUR_API_KEY>"

{
  "mcpServers": {
    "callchatsyn": {
      "url": "https://callchatsyn.com/api/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}

{
  "servers": {
    "callchatsyn": {
      "type": "http",
      "url": "https://callchatsyn.com/api/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://callchatsyn.com/api/mcp

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools 4 found in our last check

• 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…

• 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…

• 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. O…

• cancel_appointment

  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 clear…

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• Coral

  Private, non-explicit intimacy exercises, scripts and a couples quiz for adults 18+.

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• BuildYourWolfpack

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