Official MCP RegistryListed
OptionWhales
US options flow and stock data: unusual activity, gamma levels, IV, quotes, news. Free keys.
First seen 3 Oct 2026. Evidence as of 3 Oct 2026.
33
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| abnormal_trades_current | Unusual options activity this session — large, sweep-like or volume-versus-open-interest outlier orders with ticker, direction, size and time. Use for 'any unusual options activity in NVDA?' or 'biggest options trades today'. Free keys: the latest 5 trades with core fields; Pro: the full feed. | Read-only |
| confirm_registration | Confirm a key from register_free_key using the code in the 'Confirm your OptionWhales API key' email, which makes the key permanent. Safe to call again. | Changes data |
| contract_atm | Near-the-money option strikes grouped by expiry, within a band around spot (default plus or minus 5%). Use to find the liquid at-the-money contracts for a ticker. Pro. | Read-only |
| contract_chain | Option chain for a ticker from the latest open-interest snapshot: each contract's OCC symbol, strike, expiry, type and open interest (OI > 0). Filter by expiry, call/put or minimum OI. Pro. | Read-only |
| contract_historic | Daily OHLC price bars for one option contract by OCC symbol (e.g. SPY260130C00600000) between two dates, about a year of look-back. Pro. | Read-only |
| darkpool_ranking | Off-exchange (dark pool) activity: the market-wide off-exchange share and a per-ticker ranking by off-exchange notional for a date (default latest). Use for 'where is dark pool activity concentrated?'. Pro. | Read-only |
| directional_current | Per-ticker directional score for this session (-1 bearish to +1 bullish) combining net premium, order clustering and implied volatility. Use to rank names by bullish or bearish options positioning. Pro. | Read-only |
| dividends | Cash dividend history for a stock: amount, frequency, ex-dividend and pay dates. Pro. | Read-only |
| earnings_current | Options positioning around earnings for companies reporting this session: pre-earnings order flow, Greeks and intent signals. Use for 'how are traders positioned into NVDA earnings?'. Pro. | Read-only |
| economic_calendar | Upcoming US economic events (CPI, FOMC, jobs, GDP and more) with impact level and the ETFs that historically react. Use for 'what macro events are coming up?'. Free and Pro. | Read-only |
| financials | Company financial statements (income statement, balance sheet, cash flow) for trailing-twelve-month, quarterly or annual periods, latest first. Pro. | Read-only |
| gex_levels | Dealer gamma-exposure key levels for a ticker: gamma flip, max pain, call wall, put wall and spot. Use when asked where price may pin, bounce, stall or accelerate, e.g. 'what are the gamma levels on SPY?'. session defaults to the latest trading day. Free keys: SPY and QQQ; Pro: any ticker. | Read-only |
| greek_exposure | Dealer gamma, charm and vanna exposure for a ticker, by strike and by expiry (calls, puts, net). Use for detailed hedging-flow analysis beyond the key GEX levels. session defaults to the latest trading day. Pro. | Read-only |
| insider_trades | SEC Form 4 insider transactions for a stock, latest first: insider, transaction code, shares, price, value and the SEC filing link. Use for 'are insiders buying AAPL?'. Pro. | Read-only |
| intent_flow_current | Today's options-flow intent rankings: which tickers show bullish vs bearish institutional positioning (accumulation, distribution, hedging), with direction bias and strength. Use for 'what are big options traders doing today?' or 'where is smart money flowing?'. Free keys: top 3 tickers with core fields; Pro: every tracked ticker with all fields. | Read-only |
| market_tide | Market-wide options net-premium 'tide': signed large-order premium into calls versus puts, its intraday cumulative curve, and the top net-premium tickers for a session. Use for 'is options flow bullish or bearish overall today?'. Pro. | Read-only |
| momentum_rankings | Tickers ranked by options-flow momentum (the fastest-changing positioning this session). Use for 'which stocks have the strongest options momentum right now?'. Free keys: top 3; Pro: up to 200 with all fields. | Read-only |
| oi_movers | Tickers ranked by day-over-day change in total options open interest (top gainers, losers, most active). Use for 'where is new options positioning building?'. Pro. | Read-only |
| oi_timeseries | Open interest and volume across recent snapshots for one ticker (calls, puts, total). Use to see whether options positioning is building or unwinding. Pro. | Read-only |
| register_free_key | Get a FREE OptionWhales API key for the person you are helping. Only use this if they do not already have a key. Pass their own email address (ask if unsure). The key in the response works immediately for 24 hours, and this MCP session starts using it automatically when the client supports sessions. OptionWhales emails them 'Confirm your OptionWhales API key' with a confirmation code: if you can read their inbox, call confirm_registration with that code; otherwise ask them to click the link. Once confirmed the key is permanent (and Pro if their account is Pro). | Changes data |
| screener | Screen the market across options-flow net premium, open-interest change, FDA catalysts and congressional trading. Filter by direction, minimum premium or OI change, catalyst window, trial phase or congress activity; sort and limit. Use for 'find bullish options-flow names with an FDA catalyst in the next 30 days'. Pro. | Read-only |
| seasonality | Monthly seasonality for a stock: average and median return by calendar month, hit rate, best and worst years over a 1 to 25 year look-back. Pro. | Read-only |
| sector_tide | Options net premium aggregated by sector for a session. Use for 'which sectors are seeing bullish options flow?'. Pro. | Read-only |
| short_interest | FINRA short interest history (bi-weekly settlements) with days to cover for a stock. Use for 'how heavily shorted is GME?'. Pro. | Read-only |
| short_volume | Daily FINRA short-sale volume and short-volume ratio for a stock, with per-venue split. Pro. | Read-only |
| stock_candles | Intraday OHLCV bars for a stock on a session (default today), 1 to 60 minute bars; returns the most recent `limit` bars. Live bars are real-time for watchlisted symbols and 15 minutes delayed otherwise. Pro. | Read-only |
| stock_news | Recent news for a ticker, each article with a pre-computed sentiment (positive, negative, neutral) and its reasoning. Use for 'why is TSLA moving?'. Pro. | Read-only |
| stock_quote | Latest price for a stock or ETF. Real-time for symbols on your key's real-time watchlist; otherwise the most recent price at least 15 minutes old. Use for 'what is NVDA trading at?'. Pro. | Read-only |
| stock_splits | Stock split history for a ticker: execution date and split ratio. Pro. | Read-only |
| technical_indicator | Technical indicator series for a stock: SMA, EMA, RSI or MACD on adjusted closes (daily by default), latest first. Use for 'is AAPL overbought?' (RSI) or trend questions. Pro. | Read-only |
| use_api_key | Attach an existing OptionWhales API key to this MCP session, for clients that cannot send an X-API-Key header. Use when the person gives you their key. | Changes data |
| volatility_movers | Tickers whose 30-day at-the-money implied volatility moved most versus the prior close (expansions and/or compressions). Use for 'which stocks saw the biggest IV spikes today?'. Free keys: top 3; Pro: up to 50. | Read-only |
| volatility_term_structure | At-the-money implied volatility by expiration (the IV term structure), plus spot and the overall ATM IV for a ticker. Use for 'is NVDA implied volatility elevated?' or 'is the vol curve inverted before earnings?'. Free keys: SPY, QQQ, AAPL, MSFT, GOOGL, AMZN, NVDA, META, TSLA; Pro: any ticker. | Read-only |
Change history
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | io.optionwhales/options-flow | 3 Oct 2026 | 3 Oct 2026 | 1 |