Polygon.io for Claude, Cursor, ChatGPT & agents

Polygon.io — unified market data for U.S

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

What it does

Polygon.io — unified market data for U.S. stocks, options, forex, crypto and indices: latest/previous price, OHLCV bars for charting, ticker search & reference details, and market news. Use when the user asks for a price/chart/history of a stock, FX pair, crypto, option or index. Ticker formats: stocks 'AAPL'; crypto 'X:BTCUSD'; forex 'C:EURUSD'; options 'O:AAPL250117C00150000'; indices 'I:SPX'.

The Polygon.io skill is one of 40+ 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 Polygon.io is connected, ask your agent something like:

• “Get prev close from Polygon.io.”
• “Get aggregates from Polygon.io.”
• “Grouped Daily daily from Polygon.io.”

Tools available (9)

• polygon__get_prev_close

  Get the previous trading session's OHLCV (open/high/low/close/volume + VWAP) for any ticker. Fast way to get a recent price. Works for stocks (AAPL), crypto (X:BTCUSD), forex (C:EURUSD), options and indices.

• polygon__get_aggregates

  Get OHLCV bars over a date range for charting / trend analysis. Choose the bar size via multiplier + timespan (e.g. 1 day, 5 minute, 1 week). Defaults the date range based on timespan if from/to are omitted. Newest bars first.

• polygon__grouped_daily

  Daily % change for MANY stocks at once (grouped daily bars — the whole US market in ~2 upstream requests). Use this instead of calling get_prev_close per symbol for watchlists, sector maps and heatmaps. Pass tickers to filter (recommended); without a filter returns the top `limit` stocks by dollar volume. Returns close

• polygon__snapshot

  REAL-TIME snapshot for many stocks in one call: last trade price, today's change vs prev close, day volume. The freshest quote source (paid plan on the gateway key). For EOD/history use grouped_daily or get_aggregates.

• polygon__market_movers

  Full-market scan across ALL US stocks (mid-session the returned rows are refreshed via realtime snapshot, so change_pct is live), with penny-stock/thin-tape filters (min price, min dollar volume). kind: gainers | losers | volume (dollar-volume leaders) | rvol (relative-volume leaders — today's volume vs its own N-sessi

• polygon__search_tickers

  Search for tickers by name or symbol across asset classes and return reference info (name, market, type, exchange, currency). Use to resolve a company/asset to its Polygon ticker.

• polygon__ticker_details

  Get reference details for one ticker: full name, market, type, exchange, currency, description, market cap, employees, homepage.

• polygon__corporate_actions

  Dividends (ex-date, amount, frequency) and stock splits (date, from→to) for a ticker, newest-first. Reference data on Polygon's free tier.

• polygon__get_news

  Market news: general tape, one ticker, MANY tickers (tickers[]), or a whole sector. Multi-ticker/sector mode fans out one query per symbol (max 6), merges, dedupes by URL and sorts newest-first. A relevance filter (default ON) keeps an article only if the requested ticker is in its first 3 tags or in the headline — kil

How to connect

Polygon.io 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 Polygon.io.
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.