# MCP Server

## Configuration

### Prerequisites

Before connecting an MCP server, make sure you have:

* A running MCP server with an accessible SSE endpoint (e.g. `https://your-server.com/mcp`).
* Available authentication method (if required): API key, Bearer token, or OAuth.
* At least one tool is configured on the MCP server.

***

### Connecting the data source

1. On the Data sources page, click **Connect**, and select **MCP Server** in the Data sources list.
2. Select the required **Transport**:
   * Choose **HTTP** for MCP servers with Streamable HTTP support.
   * Choose **SSE** for legacy MCP servers that use HTTP plus SSE.
3. Provide the required connection details:

* **Server URL**: SSE endpoint of your MCP server.
* **Authentication:** choose one of the supported methods.

4. Provide your **Username** and **Password**.
5. Click **Test connection** to verify connectivity.
6. Click **Connect Data source** to complete setup.

<figure><img src="https://837703843-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUX6zPRMFFK0yrTghj7cY%2Fuploads%2FOHR7OKzYdKzvq7nYee8t%2Fmcp%20server.png?alt=media&#x26;token=bee5c94f-ed95-4ab7-be42-58e534875515" alt=""><figcaption></figcaption></figure>

After a successful connection, UI Bakery automatically calls the MCP `tools/list` method to retrieve available tools and their schemas.

***

### Usage

After connecting the MCP server, you can use its tools inside your application.

#### Schema discovery

Once connected, UI Bakery fetches and stores the list of available tools exposed by the MCP server.

Each tool includes:

* Tool name
* Description
* Input parameters schema.

#### Dynamic tool access

The list of available tools is retrieved dynamically from the MCP server. This means:

* Any changes on the MCP server (new tools, updated parameters) are reflected after re-fetching the schema.
* Different users or environments may see different tool sets depending on authentication and permissions.

***

{% hint style="info" %}

* MCP server acts as a unified gateway to external tools and APIs.
* Tools are defined and managed on the MCP server side, not in UI Bakery.
* Authentication affects which tools are available and accessible.
  {% endhint %}


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