By davdunc
Download historical US stock market data (minute and daily OHLCV with extended hours) from Massive.com flat files. Stores data locally for analysis.
npx claudepluginhub davdunc/davdunc-plugins --plugin market-dataClaude Code plugins for equities trading: watchlist generation, trading plans, and historical market data retrieval powered by Massive.com (Polygon.io).
Type: Claude Code skill (/market-data)
Download historical per-minute and daily OHLCV data from Massive.com flat files for any US-listed ticker. Includes premarket, regular session, and postmarket candles stored locally for analysis.
/market-data GSAT 2026-04-01
/market-data AAPL 2026-03-25 2026-03-28
Type: MCP server
Daily equities watchlist and trading plan generator. Screens for high-volume, high-volatility candidates and builds structured morning briefs.
Tools:
get_watchlist — Screen and rank candidates using Finviz + Polygon data (RVOL, ATR, premarket volume)get_trading_plan — Generate a morning trading plan with market overview, Camarilla pivots, and newsget_previous_day_analysis — Analyze prior session intraday moves from flat file minute dataget_calendar_events — Economic releases, earnings, and ex-dividend datesPrompts:
morning_trading_brief — Full structured brief with bias, if/then trade plans, and stocks to avoidBoth plugins use Massive.com credentials. Set via environment variables or a .env file:
# S3 flat file access
export MASSIVE_S3_ACCESS_KEY="your-access-key-id"
export MASSIVE_S3_SECRET_KEY="your-secret-key"
# API access (equities-watchlist)
export POLYGON_API_KEY="your-api-key"
# Optional: Finviz Elite (equities-watchlist screening)
export FINVIZ_API_KEY="your-finviz-key"
See each plugin's README for detailed setup instructions.
# As a Claude Code plugin
claude plugin install davdunc/davdunc-plugins --path market-data
# Or copy directly
cp -r market-data/skills/market-data ~/.claude/skills/
cd equities-watchlist
pip install -e .
# Register with Claude Code
claude mcp add equities-watchlist -- equities-watchlist
MIT
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