For GEX & dealer-positioning traders

See where dealers are pinned, right now.

Settled GEX shows yesterday's book. Flow-GEX recomputes exposure against effective OI (settled OI plus our intraday OI simulator), so you read dealer positioning as today's flow moves it.

Get Your API Key View the docs

Free tier, no card required · Cancel anytime · Live in 60 seconds

Gamma exposure by strike SPY

gamma flip

lower strikeshigher strikes →

Positive net GEX Negative net GEX

📘 Complete guide Complete Guide to Trading Gamma Exposure (GEX) Dealer hedging moves price — the complete GEX playbook: regimes, walls, the math, the kinks, and worked examples. 22 min read Read the guide →

Same JSON live & historical

No lookahead bias

REST + Python/JS/C#/Go/Java SDKs

6,000+ tickers, computed per-tick

The problem

What the usual options data leaves you fighting

Settled open interest is broadcast once each morning, by midday your GEX chart is stale.

Free GEX tools stop at a single chart; you can't see how today's flow is shifting the walls.

You're guessing whether dealers are amplifying the move or dampening it into a pin.

What FlashAlpha gives you

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.

The endpoints you'll call

Gamma exposure (GEX) GET /v1/exposure/gex/SPY Free Flow-GEX (live, effective OI) GET /v1/flow/gex/SPY Growth Net dealer risk GET /v1/flow/dealer-risk/SPY Growth

One call, ready to use

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
}

Go deeper

GEX concepts 3 articles

How to read a GEX-by-strike chart What is gamma exposure (GEX), explained Why GEX is not enough: vanna & charm

Live flow & methodology 3 articles

Live GEX vs settled GEX, intraday flow explained Effective open interest: live GEX from flow Flow vs exposure: which GEX endpoint to use

Levels & tickers 3 articles

Real-time GEX by strike & dealer key levels Call wall, put wall & gamma flip explained SPY GEX guide: live gamma levels & dealer hedging

Add it to your AI assistant

FlashAlpha ships a persona-scoped MCP connector tuned for this workflow. Add it to Claude, Cursor, or any MCP client and ask in plain English — it exposes the same full FlashAlpha toolset, framed for this trading style.

OAuth (claude.ai web, Cursor)

https://lab.flashalpha.com/mcp-oauth/gex

apiKey (Claude Desktop, CLI)

https://lab.flashalpha.com/mcp/gex

Connect in 3 steps

claude.ai (web/desktop): open Settings → Connectors → Add custom connector, paste the OAuth URL above, click Add, then sign in (email/password or Google) and Allow.
Cursor: click Add to Cursor below (OAuth completes in-browser, no key paste).
Claude Desktop / CLI: use the apiKey URL with your FlashAlpha key, e.g. claude mcp add flashalpha-gex --transport http https://lab.flashalpha.com/mcp/gex.

Need the full walkthrough with screenshots and troubleshooting? Read the step-by-step setup tutorial. No key yet? Grab a free one on the pricing page.

Add to Cursor Open Claude Connectors Setup tutorial All connectors

Live in three steps

Grab your API key

Call the endpoint

One GET request per ticker returns computed analytics, no rebuilding greeks or exposure yourself.

Wire it in

Drop it into your dashboard, model or backtest. Live and historical share one response shape.

Questions, answered

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.

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.

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.

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.

Recommended plan

Growth $239/mo

billed annually ($2,868/yr)

Growth unlocks flow-GEX, net dealer risk and the full flow suite, live dealer positioning, not yesterday's book.

Get Your API Key → or start free →

✓ No card for the free tier
✓ Cancel anytime
✓ Same data live & historical

Compare all plans

Get your API key in 60 seconds.