Choose how you want to
use
FlashAlpha.
billed annually ($2,868/yr)
- 2,500 requests/day
- 15-second freshness - near-live data
- Full-chain GEX (docs) - all expirations aggregated
- 0DTE analytics (docs) - pin risk, expected move, gamma regime
- Flow Analytics (docs) - simulation-aware GEX/DEX/levels/pin-risk/dealer-risk recomputed on intraday effective OI
- Options chain (docs) with full Greeks & IV
- Volatility analytics (docs) - realized vol, skew, term structure
- AI narrative (docs) - verbal exposure analysis
- Kelly criterion position sizing
- Extended Market Overview - full-chain exposure, VRP, term structure, advanced vol sections
- Live Screener (docs) - 20-symbol Tier 1 universe, filter trees, cascading expiry/strike/contract filters
- Priority email support
billed annually ($14,388/yr)
- Everything in Growth
- Unlimited requests - no daily cap
- Live Screener (full) (docs) - ~250 symbols, formulas, strategy scores (harvest, dealer-flow-risk, iron-condor)
- Backtest to the minute since 2017 (Historical API) - replay GEX, VRP, dealer regime & max pain at any minute; no lookahead; same response shape as live
- VRP analytics (docs) - z-score, regime, strategy scores, directional decomposition
- SVI vol surfaces (docs) - calibrated parameters, arbitrage detection, variance swaps
- Higher-order Greeks (docs) - vanna, charm, volga, speed surfaces
- No cache - real-time data, fresh on every request
-
SVI-smoothed IV on every option quote (
svi_vol) -
OI simulator state + Flow bundle (docs) - unclamped simulated OI, effective OI per contract, one-call
/v1/flow/live -
Flow polarity (guide) -
?polarity=flowsigns GEX & levels by the session dealer-inventory change from the tape (structural vs flow) - Unusual flow signals (docs) - scored sweep/block feed with NBBO aggressor, opening bias, intent + watchlist tilt roll-up
- Raw Flow Data tape (docs) - per-symbol option/stock trades, blocks, minute history, cross-symbol leaderboards & outliers
- 99.9% uptime SLA
billed annually ($756/yr)
- Everything in Free
- 250 requests/day
- 15-second freshness - near-live data
- ETFs & index symbols (SPY, QQQ, IWM, SPX, VIX, RUT...)
- DEX, VEX, CHEX (docs) - delta, vanna, charm exposure
- Max pain analysis (docs) - pain curve, pin probability, dealer alignment
- Market Overview - daily multi-section dealer positioning, vol & skew analysis
- Email support
- Official SDKs (Python, JS, C#, Go, Java)
What FlashAlpha offers
FlashAlpha serves both surfaces: settled GEX for the book of record, and flow-GEX recomputed against effective OI, plus a net dealer-risk classifier that labels the shift amplifying, dampening or a regime flip.
curl -H "X-Api-Key: YOUR_KEY" \ "https://lab.flashalpha.com/v1/flow/gex/SPY"
{
"symbol": "SPY",
"live_net_gex": 1920000000,
"settled_net_gex": 2850000000,
"shift_pct": -32.6,
"flow_direction": "dampening",
"live_gamma_flip": 596.0
}
Why Growth is the better choice
Near Real-Time Data
15-second updates keep your strategies in sync with the market.
Full Market Structure
Access complete options chain analytics including Full GEX, DEX and Max Pain.
Institutional Analytics
Flow Analytics, Volatility Analytics and AI-powered market narratives.
Broader Market Coverage
Trade stocks, ETFs, indexes and futures from one API.
Built for Automation
2,500 daily requests with official SDKs for production applications.
Designed to Scale
From personal dashboards to trading systems without hitting Free plan limits.
See where dealers are pinned, right now.
1. Grab your API key
Sign up free, no card. Your key works on every endpoint instantly.
2. Call the endpoint
One GET request per ticker returns computed analytics, no rebuilding greeks or exposure yourself.
3. Wire it in
Drop it into your dashboard, model or backtest. Live and historical share one response shape.
Build your first options analytics dashboard in minutes
5 requests / day
2,500 requests / day
Use with your AI via MCP
Connect FlashAlpha to your favorite AI tools in one click.
Learn more about MCPOne-click MCP setup
Works with any MCP client
Frequently Asked Questions
Everything you need to know before using the API.
Q
What is flow-GEX versus settled GEX?
Settled GEX is computed from the morning-broadcast open interest, stable but a day behind. Flow-GEX recomputes the same exposure against effective OI: settled OI plus our intraday simulator's estimate of positions opened or closed today.
Q
How is effective OI estimated intraday?
The simulator applies a confidence weight to side-classified buy/sell volume to estimate how many contracts opened or closed since the open, then adds that to settled OI per contract.
Q
Which plan unlocks flow-GEX?
Single-expiry settled GEX and key levels are Free. Flow-GEX, net dealer risk and the other flow endpoints are Growth; the raw OI simulator state and live flow bundle are Alpha.
Q
Does this work on single names or only indexes?
Any US equity or ETF with listed options. Index symbols (SPX, VIX, etc.) require the Basic plan or higher on any endpoint.
Growth
billed annually ($2,868/yr)
The dealer book as it moves: live flow-GEX, signed polarity and net dealer risk on every expiry - positioning now, not yesterday's snapshot.
- Flow-GEX + signed dealer polarity - live positioning, not yesterday's book
- Full-chain GEX, walls and flip on every expiry, 15-second freshness
- Net dealer risk + exposure summary - the whole state in one call
- 2,500 requests/day - a dashboard polling every 30s, all session
When Alpha instead: you want the print-by-print tape and OI simulator behind the live number, ~1s snapshots, or minute-level replay of how past sessions resolved.
Compare All Plans