MCP Endpoint
Use a realtime endpoint so MCP can work in voice and device sessions.
MCP Endpoint is the realtime connection path for voice and device workflows. When enabled, Assistant Core generates a WebSocket URL with an encrypted token for the assistant. Voice sessions use this URL to connect to the MCP Endpoint server and call tools while the conversation is happening.
MCP Server Vs MCP Endpoint
| MCP Server | MCP Endpoint |
|---|---|
| You configure each MCP server with a Server URL | Assistant Core generates one Endpoint URL for the assistant |
| Useful for chat and voice when a server MCP is connected | Useful for realtime voice and device sessions |
| Tools are discovered from connected MCP servers | Tools are provided through the MCP Endpoint server during the realtime session |
| Managed from MCP Server | Managed from MCP Endpoint |
Enable MCP Endpoint
- Open the Admin Dashboard.
- Select your assistant.
- Go to MCP Endpoint.
- Turn on MCP Endpoint.
- Copy the Endpoint URL if you need to configure a device or external service.
- Click Fetch Tools to verify available tools.
If the page says MCP Endpoint is not configured, a system administrator must configure the backend environment first.
What Is The Endpoint URL?
The Endpoint URL contains an encrypted token that identifies the assistant. Do not share it publicly. Any service with a valid URL may be able to connect to the endpoint according to the permissions your system allows.
When Should I Use MCP Endpoint?
Use MCP Endpoint when:
- You want a voice assistant to call tools in real time.
- You have a device or service that connects by WebSocket.
- You want to quickly inspect realtime tools with Fetch Tools.
- You are working with a device that supports MCP.
Check Available Tools
On the MCP Endpoint page, click Fetch Tools. If successful, you will see available tools and the number of parameters for each tool.
If no tools appear:
- Make sure MCP Endpoint is enabled.
- Confirm the MCP Endpoint server is running.
- Confirm the device or service has connected to the endpoint.
- Check that your plan supports MCP.
Voice Notes
In voice mode, MCP Endpoint can connect when the voice session starts. The assistant can then use realtime tools when the user's speech requires an external action, such as controlling a device, calling an API, or reading data from a connected service.