npm package: @progress/telerik-aspnetcore-tag-mcp
Description: Model Context Protocol for Telerik UI for ASP.NET Core
Latest version: 1.4.2
Deprecated: DEPRECATED: This MCP server is deprecated. Please use the latest version from NuGet: https://www.nuget.org/packages/Telerik.ASPNETCoreTag.MCP

# Telerik UI for ASP.NET Core MCP Server

> ⚠️ **DEPRECATED**: This MCP server is deprecated. Please use the latest version from NuGet: https://www.nuget.org/packages/Telerik.ASPNETCoreTag.MCP
>
> Please migrate immediately, as this server will be shut down soon.

The Telerik UI for ASP.NET Core TagHelper [MCP Server](https://modelcontextprotocol.io/introduction) enables you achieve integration with AI and reach new levels of developer productivity. The MCP server provides proprietary context to AI-powered IDEs, apps and tools. You can use the Telerik UI for ASP.NET Core TagHelper MCP server to ask about Telerik UI for UI for ASP.NET Core components, features, or general usage. You can successfully prompt more complex questions and tasks, and generate tailored code that includes Telerik UI for UI for ASP.NET Core TagHelper components and API.

## Prerequisites

To use the Telerik UI for ASP.NET Core MCP server, you need:

- A [compatible MCP client (IDE, code editor or app)](https://modelcontextprotocol.io/clients) that supports _MCP tools_.
- A [Telerik user account](https://www.telerik.com/account/).
- An active [DevCraft or Telerik UI for UI for ASP.NET Core license](https://www.telerik.com/purchase/aspnet-core-ui) or a [Telerik UI for UI for ASP.NET Core trial](https://www.telerik.com/aspnet-core-ui).

## Installation

Use the documentation of your AI-powered MCP client to add the Telerik MCP server to a specific workspace or globally. You can see installation tips and examples for some popular MCP clients below.

The generic settings of the Telerik UI for ASP.NET Core TagHelper MCP server are:

- Server name: `telerik-aspnetcoretag-assistant`
- Type: `stdio` (standard input/output transport)
- Command: `npx` (the MCP server works through an npm package)
- Supported arguments: `-y`
- npm package name: `@progress/telerik-aspnetcore-tag-mcp`
- You also need to add your [Telerik licence key](slug:installation-license-key) as an `env` parameter in the `mcp.json` file. There are two options:
  - (recommended) Use a `TELERIK_LICENSE_PATH` argument and point to your Telerik license file location.
  - Use a `TELERIK_LICENSE` argument and paste your Telerik license key. Make sure to [update the license key](slug:installation-license-key#license-key-updates) when necessary.

## Authentication

The MCP server requires a valid Telerik account with a valid license. In order to get a valid license key check the [Telerik UI for ASP.NET Core documentation](https://www.telerik.com/aspnet-core-ui/documentation/installation/activating-your-license/setting-up-your-license).

To set up the license key, you need to set it up as an environment variable in the JSON configuration file.

## Configuration Examples

### Visual Studio

Refer to [Use MCP servers in Visual Studio](https://learn.microsoft.com/en-us/visualstudio/ide/mcp-servers).

To enable the Telerik MCP Server in a specific UI for ASP.NET Core app, add a `.mcp.json` file to the solution folder.

> SOLUTIONDIR/.mcp.json

```json
{
  "servers": {
    "telerik-aspnetcoretag-assistant": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@progress/telerik-aspnetcore-tag-mcp@latest"],
      "env": {
        "TELERIK_LICENSE_PATH": "THE_PATH_TO_YOUR_LICENSE_FILE",
        // or
        "TELERIK_LICENSE": "YOUR_LICENSE_KEY"
      }
    }
  }
}
```

### VSCode - Copilot

Refer to [Use MCP servers in VS Code](https://code.visualstudio.com/docs/copilot/chat/mcp-servers).

To enable the Telerik MCP Server in a specific workspace or UI for ASP.NET Core app, add a `.vscode` folder with an `mcp.json` file at the root of the workspace:

> .vscode/mcp.json at the workspace root

```json
{
  "servers": {
    "telerik-aspnetcoretag-assistant": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@progress/telerik-aspnetcore-tag-mcp@latest"],
      "env": {
        "TELERIK_LICENSE_PATH": "THE_PATH_TO_YOUR_LICENSE_FILE",
        // or
        "TELERIK_LICENSE": "YOUR_LICENSE_KEY"
      }
    }
  }
}
```

### Cursor

Refer to [Model Context Protocol](https://docs.cursor.com/context/model-context-protocol).

To [enable the Telerik MCP Server in a specific workspace](https://code.visualstudio.com/docs/copilot/chat/mcp-servers#_add-an-mcp-server-to-your-workspace) or UI for ASP.NET Core app, add a `.cursor` folder with an `mcp.json` file at the root of the workspace.

> .cursor/mcp.json at the workspace root

```json
{
  "mcpServers": {
    "telerik-aspnetcoretag-assistant": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@progress/telerik-aspnetcore-tag-mcp@latest"],
      "env": {
        "TELERIK_LICENSE_PATH": "THE_PATH_TO_YOUR_LICENSE_FILE",
        // or
        "TELERIK_LICENSE": "YOUR_LICENSE_KEY"
      }
    }
  }
}
```

## Usage

To use the Telerik MCP Server:

1. Start your prompt with `#telerik-aspnetcoretag-assistant` (or with `#` followed by your custom server name, if set).
1. Confirm that the Telerik MCP server is used, because this doesn't happen deterministically. Look for a statement in the output, which is similar to:

   - `Running telerik-aspnetcoretag-assistant` (in VS Code)
   - `Calling MCP tool telerik-aspnetcoretag-assistant` (in Cursor)

   If the Telerik MCP server is not used even though it's installed and enabled, double-check the server name in your configuration and try rephrasing your prompt using another trigger syntax from the list in step 1.

1. If requested, grant the Telerik MCP server a permission to run for this session, workspace, or always.
1. If you want to prompt for information or code that are not related to your previous prompts, it is a good practice to start a new session in a new chat window, so that the context is not polluted by irrelevant old information.

To increase the probability of the Telerik MVC Server being used, or to call it without the need to mention "telerik" explicitly, add custom instructions to your AI-powered tool. Here are examples for [GitHub Copilot](https://docs.github.com/en/copilot/customizing-copilot/adding-repository-custom-instructions-for-github-copilot#about-repository-custom-instructions-for-github-copilot-chat) and [Cursor](https://docs.cursor.com/context/rules).