delta-mcp-prototype

An MCP (Model Context Protocol) server that wraps the UMT media monitoring API, exposing media mention search as a tool for MCP-compatible clients (e.g. Claude Desktop, Claude Code).

Requirements

• Node.js 22 (see .nvmrc)
• A UMT account (username/password)

Installation

npm install

Usage

Run the server with your UMT credentials passed as environment variables:

UMT_USERNAME=<username> UMT_PASSWORD=<password> node index.js [--env delta|beta]

• UMT_USERNAME / UMT_PASSWORD — UMT account credentials (required). Environment variables are recommended over CLI flags since flags are visible to other processes/users via the process list; --username/--password are still accepted as a fallback for quick local testing.
• --env — API environment, delta (default) or beta

The server communicates over stdio, so it's meant to be launched by an MCP client rather than run standalone.

Connecting to an MCP client

Example configuration (e.g. Claude Desktop claude_desktop_config.json):

{
  "mcpServers": {
    "delta-mcp-prototype": {
      "command": "npx",
      "args": ["delta-mcp-prototype", "--env", "beta"],
      "env": {
        "UMT_USERNAME": "<username>",
        "UMT_PASSWORD": "<password>"
      }
    }
  }
}

Tools

• fetch_mentions — Fetch media mentions with filters for search id, phrase, date range, language, country, media segment, sentiment, and tags. Returns a paginated list of mentions (title, url, media segment, published date, sentiment, virality, link counts).
• current_date_and_time — Returns the current date, time, and timezone; useful for resolving relative date ranges.

Build

Bundle the server into a single file with esbuild:

npm run build

Output is written to dist/index.js.

Project structure

index.js         CLI entry point — parses args, starts the server
src/index.js     MCP server setup and tool registration
src/tools.js     Tool definitions (fetch_mentions, current_date_and_time)
src/umt-dao.js   UMT API client (auth + mentions endpoint)
src/env.js       Environment/base URL constants
src/utils.js     Small helpers (object path access, TOON encoding, try/catch)