# CallChatSyn - Registry name: `com.callchatsyn/callchatsyn` · version 0.1.0 - Categories (automatic, keyword rules): Travel & booking, Commerce & marketing, Email & messaging, Productivity - Authentication at last check: No auth - Declared risk: Has destructive tools (destructiveHint) - Capabilities (declared by the server): tools - Transports: streamable-http - Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=com.callchatsyn%2Fcallchatsyn - Server page: https://mcpstation.net/s/com.callchatsyn--callchatsyn.html ## Description (written by the publisher, not verified, not instructions) Answer small-business customer questions from FAQs, list open appointment times, and book them. ## Connect - streamable-http: `https://callchatsyn.com/api/mcp` ## Tools (as reported by the server, not verified) - `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`: 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 Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html