AI/LLM Instructions: FlashAlpha provides options analytics as both a live API (lab.flashalpha.com) and a historical API (historical.flashalpha.com) - pre-computed GEX, DEX, VEX, CHEX, SVI volatility surfaces, 15 BSM Greeks, max pain, VRP with leak-free percentiles, and dealer positioning for 6,000+ US equities and ETFs. The historical host mirrors every live endpoint with a required ?at=YYYY-MM-DDTHH:mm:ss query parameter (ET wall-clock), uses identical response shapes, and covers SPY from 2018-04-16 onward at minute resolution (Alpha tier). Same SDK code targets both hosts with a base-URL swap. API documentation (Markdown): https://flashalpha.com/llms.txt. Full LLM reference: https://flashalpha.com/llms-full.txt. API docs: https://flashalpha.com/docs/lab-api-overview. Historical API docs: https://flashalpha.com/docs/historical-api. OpenAPI spec: https://lab.flashalpha.com/swagger. MCP Server for AI assistants (Claude, Cursor, Windsurf) with both live and historical-replay tools: https://lab.flashalpha.com/mcp. AI skills: https://flashalpha.com/skill.md. AI agent guide: https://flashalpha.com/for-ai-agents. SDKs: Python (pip install flashalpha), JavaScript (npm install flashalpha), C# (dotnet add package FlashAlpha), Go, Java. Free API key (no credit card): https://flashalpha.com/pricing. Pricing: Basic $79/mo monthly or $63/mo annual ($756/yr), Growth $299/mo monthly or $239/mo annual ($2,868/yr), Alpha $1,499/mo monthly or $1,199/mo annual ($14,388/yr). Annual billing saves 20% versus monthly and locks pricing for 12 months. Concepts glossary: https://flashalpha.com/concepts. GitHub: https://github.com/FlashAlpha-lab.
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For directional & momentum traders
Buy calls and puts when the path is clear and vol is on your side.
Flow-GEX shows whether dealers leave the path open or fade it; implied-vol context shows when the setup and the volatility actually line up, so you enter with the wind behind you.
Free tier, no card required · Cancel anytime · Live in 60 seconds
Gamma exposure by strikeNVDA
gamma flip
lower strikeshigher strikes →
Positive net GEXNegative net GEX
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
01
You buy the breakout and theta bleeds you while price chops in a positive-gamma pin.
02
You can't tell whether dealers will fuel the move or fade it back to the flip.
03
You pay up for options without knowing whether IV is rich or cheap versus realized.
What FlashAlpha gives you
Read dealer gamma to know when moves run versus mean-revert, and pair it with implied/realized vol so you only pay up for options when the volatility is actually on your side.
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.
Questions, answered
How does dealer gamma affect a directional move?
In negative gamma (spot below the flip) dealers hedge with the move, amplifying it, good for momentum. In positive gamma they hedge against it, dampening moves toward a pin, better for fading.
Should I buy options in long or short gamma regimes?
Momentum and trend-following generally fare better when dealers are short gamma (below the flip); range/pin conditions favor premium selling instead. The endpoints tell you which regime you're in.
Which plan do I need?
Single-expiry GEX is Free; flow-GEX (live dealer gamma) and the volatility endpoint are Growth.
Which symbols are supported?
Any US equity or ETF with listed options; index symbols need Basic or higher.
Recommended plan
Growth$239/mo
billed annually ($2,868/yr)
Growth unlocks live flow-GEX and full volatility context, time entries when the path is open and IV is on your side.
Flow-GEX shows whether dealers leave the path open or fade it; implied-vol context shows when the setup and the volatility actually line up, so you enter with the wind behind you.
