gold-mcp

An MCP server that brings public gold (XAUUSD) market data into Claude, ChatGPT, Cursor, Windsurf, Cline, Zed, and any other Model Context Protocol client.

Free tier (13 tools + optional 8-tool MT5 BYOK adapter) is fully functional and stays free forever. Pro, Premium, and Ultra tiers add advanced TA, backtest, SMC suite, risk management, and AI analyst via an offline Ed25519 license key — no SaaS, no phone-home.

Educational and research use only — not financial advice.

Tiers

Tier	Tools	License	Suggested price
Free	13 (+8 optional MT5 BYOK)	None	$0
Pro	+7 (20 total)	GOLD_MCP_LICENSE_KEY env	$9-19/mo
Premium	+4 (24 total)	GOLD_MCP_LICENSE_KEY env	$29-49/mo
Ultra	+18 (42 total, 50 with MT5 BYOK)	GOLD_MCP_LICENSE_KEY env	$99-149/mo

Free — public gold data + realtime PAXG + MT5 BYOK (13 + 8 tools)

Public gold data (Yahoo Finance):

• 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 local VN quote to world parity
• gold_market_snapshot — one-call aggregator + bulleted summary
• diagnostic — show license tier + available tools
• cache_purge — sweep expired cache entries

Realtime PAXG via Binance public WebSocket (NEW v4.1, no API key):

• paxg_worker_status — WS worker health + tick count
• get_paxg_tick — last PAXG tick (tracks XAU/USD within 0.1-0.3%)
• get_paxg_ohlcv_realtime — aggregated PAXG bars from local tick log

MT5 BYOK adapter (NEW v4.1, optional via pip install 'gold-mcp[mt5]', Windows):

• mt5_attach / mt5_detach / mt5_status — manage attached terminal
• mt5_find_symbol — broker-specific XAUUSD symbol resolution
• mt5_get_tick / mt5_get_ohlcv / mt5_get_ticks — read from your terminal
• mt5_account_info — balance / equity / leverage
• No credentials cross the server. You run your own MT5 terminal.

Pro — advanced TA + multi-timeframe + alerts

• analyze_gold_advanced — Bollinger + Ichimoku + Fibonacci
• multi_timeframe_snapshot — 5m / 1h / 4h / 1d in one call
• gold_correlation_regime — detects DXY decoupling, etc.
• get_gold_setups — multi-indicator confluence scanner
• create_gold_alert / list_gold_alerts / delete_gold_alert

Premium — backtest + research

• backtest_gold_strategy — 4 strategies, vectorized
• gold_walk_forward — rolling out-of-sample validation
• optimize_gold_strategy — grid search by Sharpe / PF / return
• gold_intraday_seasonality — hourly / session bucketing

Ultra — institutional analyst toolkit (18 exclusive tools)

Smart Money Concepts (SMC)

• smc_full_scan — composite SMC bias (structure + OB + FVG + sweeps)
• detect_order_blocks — bullish/bearish OB with impulse ATR filtering
• detect_fair_value_gaps — 3-candle imbalances + fill tracking
• detect_liquidity_sweeps — stop-hunt detection (breach + reverse)
• detect_market_structure — CHOCH/BOS labeling on swing fractals

Regime + Multi-Timeframe

• classify_regime — composite Hurst exponent + Lo-MacKinlay variance ratio
• mtf_alignment — D1/H4/H1 confluence with alignment score 0-100

Position sizing + risk

• kelly_fraction — half-Kelly default for safety
• fixed_fractional_size — classic R% sizing
• optimal_f — Ralph Vince geometric-mean-maximizing f
• risk_of_ruin — Monte Carlo ruin probability

Monte Carlo + VaR

• monte_carlo_paths — bootstrap or parametric path simulation
• value_at_risk — historical VaR + Conditional VaR
• prob_hit_target_or_stop — MC trade probability with EV in R-multiples

AI Analyst (BYOK Anthropic)

• ai_daily_briefing — structured JSON read from Claude Sonnet 4.6
• ai_setup_explanation — cheaper Haiku 4.5 plain-English read

Report generation

• generate_html_tearsheet — polished standalone HTML report
• generate_markdown_briefing — portable Markdown daily 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.

Upgrading to Pro / Premium

Add GOLD_MCP_LICENSE_KEY to the env block of your MCP config:

"env": {
  "GOLD_MCP_LICENSE_KEY": "eyJ0aWVy...Ijoi.MEUCI..."
}

Restart your MCP client. Call diagnostic — tier_active should report pro or premium. New tools become available immediately.

See examples/claude_desktop_config_pro.json for the full template.

Architecture

gold_mcp/
  server.py            FastMCP wiring with 3-tier gating (21 tools max)
  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)
  cache.py             TTL filesystem cache (60s → 24h)
  license.py           Ed25519 offline license verification
  issue_license.py     CLI: init-keys, issue, verify
  pro_tools.py         Pro tier: advanced TA, alerts, multi-timeframe
  premium_tools.py     Premium tier: backtest, walk-forward, optimizer
  adapters/
    vn_macro.py        USD/VND + world-parity gold

For vendors selling licenses, see the CLI:

python -m gold_mcp.issue_license init-keys
# Paste printed PUBLIC_KEY_B64 into gold_mcp/license.py

python -m gold_mcp.issue_license issue --tier pro --email u@x.com --days 30

Or run the Lemon Squeezy webhook handler (port from mcp-byok-template — swap the env-var name from MCP_BYOK_LICENSE_KEY to GOLD_MCP_LICENSE_KEY).

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.