Bloomberg MCP for Claude

Connect your Bloomberg Terminal to Claude — double-click to install.

Requirements

• Bloomberg Terminal installed and running
• Claude Desktop (claude.ai/download) — or Claude.ai in browser
• Windows 10 or 11

Install

1. Download bloomberg-mcp-installer.exe
2. Double-click it — follow the wizard (takes about 30 seconds)
3. Restart Claude Desktop
4. Bloomberg now appears as a connector in Claude

What it does

A small app runs in your system tray connecting your Bloomberg Terminal to Claude. All data stays on your machine — nothing is sent externally.

Tray icon	Status
🟢 Green dot	Connected to Bloomberg Terminal
🟡 Yellow dot	Starting or reconnecting
🔴 Red dot	Bloomberg Terminal not running

The app starts automatically when you log in to Windows.

Example questions to ask Claude

Question	What happens
"What's Apple's current price and P/E?"	Fetches PX_LAST, PE_RATIO from Bloomberg
"Show NVDA's daily close for the past year"	Historical data request
"Find the Bloomberg ticker for Moderna"	Security search
"What does the BEST_EPS field mean?"	Field metadata lookup
"What Bloomberg fields cover earnings?"	Field search by keyword
"Any news on Tesla today?"	Bloomberg news headlines
"When does Apple next report earnings?"	Corporate events

Tray icon right-click menu

• Restart Server — reconnect to Bloomberg Terminal after it was closed/reopened
• Open Settings — edit settings.json in Notepad (port, log level, etc.)
• View Logs — open the logs folder in Explorer
• Open Claude Desktop — launch Claude
• Quit — stop the MCP server

Settings

Located at C:\ProgramData\BloombergMCP\settings.json:

{
  "port": 8745,
  "bloomberg_host": "localhost",
  "bloomberg_port": 8194,
  "log_level": "INFO",
  "auto_start": true
}

After editing, right-click the tray icon → Restart Server.

IT deployment (silent install)

bloomberg-mcp-installer.exe /SILENT /SUPPRESSMSGBOXES

Uninstall also works silently:

"C:\Program Files\Bloomberg MCP\unins000.exe" /SILENT

Troubleshooting

Red tray icon — Make sure Bloomberg Terminal is open and logged in. Click Restart Server.

Bloomberg not appearing in Claude — Run bloomberg_mcp.exe --configure-claude from the install folder. Then restart Claude Desktop.

Port conflict — Edit settings.json, change port to something other than 8745, restart server. Then update Claude config: bloomberg_mcp.exe --configure-claude.

Build from source

Requirements: Python 3.11+, Inno Setup 6

.\build.ps1
# Output: Output\bloomberg-mcp-installer.exe

Clean build:

.\build.ps1 -Clean -Version "1.1.0"