CallChatSyn MCP server
MCP serverEverything elseAnswer small-business customer questions from FAQs, list open appointment times, and book them.
Use CallChatSyn MCP server in Claude, ChatGPT or Ahel Desktop
Free. Sign in, add CallChatSyn MCP server and connect your AI. About a minute.
Also: Claude Code · Cursor · Codex
Then ask your AI: use CallChatSyn MCP server
No other account needed.
Details
Available today. Use it from your connected AI after setup.
No other account needed.
Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.
Install CallChatSyn MCP server
The server’s own address, for the clients that take one directly. Or connect ahel once and every client you use reads it from one address, with the account kept on ahel rather than in each client’s config.
Claude Code
claude mcp add --transport http --scope user callchatsyn-mcp-server 'https://callchatsyn.com/api/mcp'Run it once in your project, then open /mcp to approve any sign-in the server asks for.
Claude Desktop
https://callchatsyn.com/api/mcpAdd a custom connector in Settings, paste this address, and approve the sign-in.
Cursor
cursor://anysphere.cursor-deeplink/mcp/install?name=callchatsyn-mcp-server&config=eyJ1cmwiOiJodHRwczovL2NhbGxjaGF0c3luLmNvbS9hcGkvbWNwIn0=Open the link and Cursor adds the server at that address.
ChatGPT
https://callchatsyn.com/api/mcpIn Settings, enable Developer mode, create an MCP app, and paste this address. Your plan and workspace must allow custom apps.
Codex
codex mcp add callchatsyn-mcp-server --url 'https://callchatsyn.com/api/mcp'Run it once, then sign in with codex mcp login callchatsyn-mcp-server if the server asks for an account.
From the project's README
As published by oneappsworld/callchatsyn-mcp in README.md.
Let an AI assistant (Claude, Cursor, any MCP client) answer customer questions and book appointments for a small business, using that business's own FAQs and opening hours on CallChatSyn.
Free for the first 1,000 businesses (founder offer: 100 API calls a day, 2,000 a month).
Tools
| Tool | What it does |
|---|---|
answer_customer_question | Answers from the business's FAQs and order data (English/Chinese); flags booking and "talk to a person" requests |
list_open_times | Next open appointment times in the business's time zone, plus services and locations |
book_appointment | Books one of those times (only offered times; the business is notified) |
Setup
- Create a CallChatSyn account, add FAQs and opening hours, then Dashboard → Developers → claim founder access → create an API key.
- Add to your MCP client config:
{
"mcpServers": {
"callchatsyn": {
"command": "npx",
"args": ["-y", "github:oneappsworld/callchatsyn-mcp"],
"env": { "CALLCHATSYN_API_KEY": "ccs_live_..." }
}
}
}
Keep the key private; it acts for one business.
No key yet? Leave CALLCHATSYN_API_KEY out and the server uses the public demo key (ccs_demo_public): answers come from a demo business and bookings are dry runs, so you can try every tool before signing up.
Notes
- Answers are rule-based FAQ matching (fast, predictable), not free-form generation.
- API docs and OpenAPI spec: https://callchatsyn.com/developers · https://callchatsyn.com/openapi.json
MIT licensed.
Advanced
- Delivery
- callchatsyn MCP server → your ahel connector (mcp.ahel.ai) → your AI.
- Item type
- mcp-server
- Key
com-callchatsyn-callchatsyn- Source
- github.com/oneappsworld/callchatsyn-mcp
- Hosted endpoint
https://callchatsyn.com/api/mcp