gold-mcp

A small, free, community-driven MCP server that brings public gold (XAUUSD) market data into Claude, ChatGPT, Cursor, Windsurf, Cline, Zed, and any other Model Context Protocol client.

No broker account. No tick stream. No environment variables. No paid tier. Just clone, pip install -e ., wire to your MCP client, and ask your AI assistant about gold.

Educational and research use only — not financial advice.

What it does

Eight small tools that wrap Yahoo Finance so the model can pull live numbers about gold and the macro context that drives it.

• get_gold_price — latest gold close + 24h change
• get_gold_ohlcv — historical bars (1m → 1mo)
• get_macro_context — DXY, US10Y/02Y, SPX, VIX, BTC, silver, oil
• get_gold_correlations — gold-vs-macro correlation matrix
• get_gold_seasonality — day-of-week / monthly return stats
• get_vn_macro — USD/VND + implied world-parity gold price in VND
• estimate_vn_gold_premium — compare a local VN gold quote against world parity
• gold_market_snapshot — one-call structured aggregator over the tools above, with a concise bulleted summary

Quickstart

1. Install

git clone https://github.com/ThaiTrevor/gold-mcp.git
cd gold-mcp
pip install -e .

Python 3.10+. No other setup, no env vars, no data files.

2. Wire it into your MCP client

Claude Desktop

Edit %APPDATA%\Claude\claude_desktop_config.json (Windows) or ~/Library/Application Support/Claude/claude_desktop_config.json (macOS):

{
  "mcpServers": {
    "gold-mcp": {
      "command": "python",
      "args": ["-m", "gold_mcp.server"]
    }
  }
}

Restart Claude Desktop. The tools appear under the plug icon.

Claude Code (CLI)

claude mcp add --scope user gold-mcp -- python -m gold_mcp.server

Cursor / Windsurf / Cline / Continue / Zed

~/.cursor/mcp.json (or the equivalent file for your client):

{
  "mcpServers": {
    "gold-mcp": {
      "command": "python",
      "args": ["-m", "gold_mcp.server"]
    }
  }
}

ChatGPT Desktop / Agent mode

Settings → Connectors → Add MCP server:

Command: python
Args:    -m gold_mcp.server

3. Try it

Ask the model in plain English. Examples:

"What is gold doing right now and how does it compare to today's macro tape (DXY, yields, VIX)?"

"Show me the last 24 hourly bars of gold and the 60-day correlation with silver and DXY."

"Give me a market snapshot for gold — combine price, macro context, correlations, and the day-of-week seasonality."

"USD/VND right now and the implied world-parity gold price in VND per tael. If SJC is quoting 145 million, what's the premium?"

Why this exists

LLMs reason well about gold but they don't see live market data, the macro tape that moves gold, or a clean correlation matrix on demand. This server is a tiny, free bridge between an MCP client and the public Yahoo Finance data that any researcher already has access to — exposed as well-typed tools so the model picks the right one automatically.

It started as a study project to learn MCP architecture and turned into something useful enough to publish for the community.

Architecture

gold_mcp/
  server.py        FastMCP tool wiring (8 tools)
  gold_data.py     yfinance price + OHLCV
  macro_data.py    DXY/yields/SPX/VIX/BTC + correlations
  analytics.py     seasonality
  analyst.py       one-call aggregator (gold_market_snapshot)
  adapters/
    vn_macro.py    USD/VND + world-parity gold (community contribution)

Every module is small and self-contained — read through it in 15 minutes. PRs that add similar small tools are very welcome.

Contributing

This project is small on purpose. We welcome contributions that fit the same pattern:

• Small, focused tools that wrap one public data source
• Return structured JSON with named keys + a short interpretation field
• No private data, no scraped credentials, no broker-specific paths
• No tools that produce trading recommendations

See CONTRIBUTING.md for details and SECURITY.md for how to report security issues.

Testing

pip install -e ".[dev]"
pytest

CI runs the suite on Linux, macOS, and Windows across Python 3.10/3.11/3.12 on every push and pull request.

Disclaimer

gold-mcp is a data and analysis tool for educational and research purposes only. Nothing returned by any tool constitutes investment advice, a recommendation, or a solicitation. Markets carry risk; you are responsible for your own decisions.

License

MIT — see LICENSE.