Market Scanner (Polygon) for Claude, Cursor, ChatGPT & agents

Market Scanner — scan the whole US stock market via Polygon snapshots: top gainers/losers, pre/intraday gappers (with price + volume filters), and market breadth (advance/decline).

curl -fsSL https://tradeloop.top/install.sh | sh

What it does

Market Scanner — scan the whole US stock market via Polygon snapshots: top gainers/losers, pre/intraday gappers (with price + volume filters), and market breadth (advance/decline).

The Market Scanner (Polygon) skill is one of 25+ pre-wired TradeLoop integrations that any MCP-compatible client — Claude Desktop, Claude Code, Cursor, Windsurf, Codex CLI, and ChatGPT desktop — can call out of the box. You don't configure MCP servers or copy API keys into a JSON file; the TradeLoop daemon discovers the skill at startup and exposes its tools to whichever AI client is running.

Sample prompts

Once TradeLoop is installed and Market Scanner (Polygon) is connected, ask your agent something like:

• “Movers from Market Scanner (Polygon).”
• “Gappers from Market Scanner (Polygon).”
• “Breadth from Market Scanner (Polygon).”

Tools available (3)

• scanner__movers

  Top market movers — the day's biggest gainers or losers across all US stocks. Returns ticker, price, percent change and volume. Use to see what is running today.

• scanner__gappers

  Scan the full market for gap stocks — names whose open gapped up/down from the prior close, filtered by minimum gap %, price and volume. Sorted by absolute gap size. Great for pre-market / intraday momentum setups.

• scanner__breadth

  Market breadth across all US stocks: advancers, decliners, unchanged, advance/decline ratio and percent advancing. Use to gauge overall risk-on vs risk-off tone.

How to connect

Market Scanner (Polygon) needs a provider API key to talk to polygon. Connect it from the TradeLoop dashboard:

1. Run curl -fsSL https://tradeloop.top/install.sh | sh on macOS / Linux (or the PowerShell command on Windows).
2. Run tradeloop login to create your account and a device-bound encryption key.
3. Visit tradeloop.top/connect and authorize Market Scanner (Polygon).
4. Run tradeloop update to sync the skill + credentials to every installed AI client.

Pricing

Free at every TradeLoop tier. Connect your account once at /connect; the OAuth or API-key credential stays encrypted on your machine and syncs to your other devices via the TradeLoop vault.

See the full TradeLoop pricing breakdown — Free $0/mo, Pro $29/mo, Ultra $99/mo — on the homepage.