FlashAlpha
Options Analytics API - GEX Exposure Greeks Volatility
FlashAlpha MCP Server — Real-Time Options Analytics for AI Assistants
Connect Claude, ChatGPT, Cursor, Windsurf, or any MCP-compatible AI assistant to live options market data. 40 tools covering gamma exposure (GEX), delta/vanna/charm exposure, max pain, key dealer-positioning levels, IV surfaces (SVI), VRP analytics, Black-Scholes greeks, Kelly sizing, 0DTE intraday flow, plus minute-resolution historical replay back to April 2018 for backtesting.
What is this repo
Documentation, setup snippets, and server.json metadata for the FlashAlpha remote MCP server. The server itself runs at https://lab.flashalpha.com/mcp (and /mcp-oauth for OAuth-authenticated clients) — its source is not open. Use this repo as a reference for how to wire FlashAlpha into your AI client of choice.
Server URLs
Two endpoints, identical tool catalog, different authentication:
| Endpoint | Auth | When to use |
|---|---|---|
https://lab.flashalpha.com/mcp | apiKey tool parameter | Self-hosted clients: Claude Desktop, Claude Code CLI, Cursor, Windsurf, VS Code Copilot |
https://lab.flashalpha.com/mcp-oauth | OAuth 2.1 + PKCE + DCR (RFC 7591) | Claude Connector Directory, ChatGPT Apps, Perplexity custom connectors, any host that requires OAuth-authenticated remote MCP |
- Transport: Streamable HTTP
- Protocol version: MCP 2025-06-18
- OAuth discovery:
https://lab.flashalpha.com/.well-known/oauth-protected-resource(RFC 9728) - Authorization server:
https://flashalpha.com/oauth
Quick Setup (self-hosted clients → /mcp + apiKey)
Claude Desktop
Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
{
"mcpServers": {
"flashalpha": {
"type": "http",
"url": "https://lab.flashalpha.com/mcp"
}
}
}
Claude Code CLI
claude mcp add flashalpha --transport http https://lab.flashalpha.com/mcp
claude mcp list
Cursor
Settings → MCP → Add server:
{
"flashalpha": {
"transport": "http",
"url": "https://lab.flashalpha.com/mcp"
}
}
VS Code (Copilot / Continue)
.vscode/mcp.json or user settings:
{
"servers": {
"flashalpha": {
"type": "http",
"url": "https://lab.flashalpha.com/mcp"
}
}
}
Windsurf
Cascade settings → MCP Servers:
{
"flashalpha": {
"transport": "http",
"url": "https://lab.flashalpha.com/mcp"
}
}
Perplexity (Pro/Max/Enterprise)
Settings → Connectors → + Custom connector → Remote
- URL:
https://lab.flashalpha.com/mcp-oauth - Auth: OAuth (walks the consent flow at
flashalpha.com/oauth/login)
Authentication
/mcp (apiKey)
Every tool call takes apiKey as a string parameter. Get a free key at flashalpha.com.
apiKey: "fa_your_key_here"
Key passes per-call rather than in a header so it works uniformly across all MCP clients without transport-level configuration.
/mcp-oauth (Bearer)
OAuth 2.1 + PKCE + Dynamic Client Registration (RFC 7591). The client registers itself, walks the authorization-code + PKCE flow, and presents a Bearer JWT on each request. No apiKey parameter needed — the server resolves the user's account from the OAuth identity and forwards the API key internally for upstream /v1/* calls. Same per-user tier gating and rate limits apply as the apiKey flow.
Discovery + endpoints:
| RFC 9728 protected-resource metadata | https://lab.flashalpha.com/.well-known/oauth-protected-resource |
| OIDC discovery | https://flashalpha.com/oauth/.well-known/openid-configuration |
| JWKS | https://flashalpha.com/oauth/.well-known/jwks |
| Dynamic Client Registration | POST https://flashalpha.com/oauth/register |
| Authorization endpoint | https://flashalpha.com/oauth/authorize |
| Token endpoint | https://flashalpha.com/oauth/token |
| Scope | flashalpha.mcp |
Tool Catalog (40 tools)
Tool names below are the exact strings sent via tools/call — snake_case, not the PascalCase C# method names. Copy verbatim.
Live tools (23)
Market Data (5)
| Tool | Description |
|---|---|
get_stock_quote | Real-time stock quote (bid, ask, mid, last) |
get_tickers | List/search available tickers |
get_option_chain | Available expirations + strikes metadata |
get_option_quote | Live option quote: bid, ask, mid, IV, greeks, OI, volume |
get_account | Plan, daily quota, usage today, remaining calls |
Exposure Analytics (9)
| Tool | Description |
|---|---|
get_gex | Gamma exposure (GEX) by strike — call/put walls, gamma flip |
get_dex | Delta exposure (DEX) by strike — net dealer delta |
get_vex | Vanna exposure (VEX) by strike — dealer hedging response to vol moves |
get_chex | Charm exposure (CHEX) by strike — time-decay-driven flows |
get_levels | Gamma flip, call/put walls, max pain, highest OI strike, 0DTE magnet |
get_exposure_summary | Net GEX/DEX/VEX/CHEX, regime, hedging estimates, top strikes, 0DTE breakdown |
get_narrative | Verbal analysis: regime, levels, dealer positioning, implications |
get_max_pain | Max pain strike, pain curve, put/call OI ratio, dealer alignment, pin probability |
get_zero_dte | 0DTE analytics: intraday gamma, time-decay acceleration, pin risk, hedging pressure |
Volatility & Pricing (9)
| Tool | Description |
|---|---|
get_surface | Live 50×50 implied-volatility surface grid over (tenor, log-moneyness) |
get_volatility | ATM IV, realized vol (5/10/20/30d), VRP, 25-δ skew, term structure, GEX-by-DTE |
get_advanced_volatility | SVI parameters, forward prices, variance surface, arbitrage flags, vanna/charm/volga surfaces, variance-swap fair values (Alpha) |
get_vrp | Volatility risk premium dashboard: IV vs RV, percentiles, regime, strategy scores |
get_vrp_history | Historical VRP time series for charting + backtesting |
get_stock_summary | One-call combined summary: price, IV, VRP, skew, term, exposure, macro context |
calculate_greeks | Black-Scholes greeks (Δ, Γ, Θ, ν, ρ, vanna, charm, speed, zomma, color) |
solve_iv | Solve implied volatility from market price (BSM inversion) |
calculate_kelly | Kelly criterion optimal sizing for an option trade |
Historical replay tools (17, Alpha tier)
All historical tools take a required at=YYYY-MM-DDTHH:mm:ss parameter (ET wall-clock) and replay the matching live analytic at any minute since 2018-04-16. Response shapes are identical to the live counterparts — backtesting code that parses live responses works on historical with a tool-name swap.
| Tool | Mirrors |
|---|---|
get_historical_gex | get_gex |
get_historical_dex | get_dex |
get_historical_vex | get_vex |
get_historical_chex | get_chex |
get_historical_levels | get_levels |
get_historical_exposure_summary | get_exposure_summary |
get_historical_narrative | get_narrative |
get_historical_zero_dte | get_zero_dte |
get_historical_max_pain | get_max_pain |
get_historical_volatility | get_volatility |
get_historical_advanced_volatility | get_advanced_volatility |
get_historical_vrp | get_vrp |
get_historical_surface | get_surface |
get_historical_stock_quote | get_stock_quote |
get_historical_option_quote | get_option_quote |
get_historical_stock_summary | get_stock_summary |
get_historical_coverage | List symbols backfilled with coverage windows and gaps — call first to check whether (symbol, date range) is queryable |
Note: The multi-factor options screener is REST-only at POST /v1/screener — no MCP tool wraps it (yet). The historical replay tools cover analytics only; for raw historical tick data use the historical REST endpoints directly.
MCP Resources (5)
The server publishes 5 markdown documents as MCP Resources so connected clients can pull the full reference into context with one call instead of relying on tool descriptions:
| URI | Title |
|---|---|
flashalpha://docs/api | Live API reference (every REST endpoint at api.flashalpha.com) |
flashalpha://docs/historical | Historical replay reference |
flashalpha://docs/mcp | This document |
flashalpha://docs/screener | Live screener spec (filter DSL, sorts, formulas) |
flashalpha://docs/screener-fields | Screener field taxonomy |
MCP Prompts (4)
Canonical workflow templates that surface in Claude Desktop / Cursor / Windsurf UI as one-click recipes:
| Prompt | Description |
|---|---|
analyze_exposure(symbol) | Full dealer-positioning walkthrough — gamma regime, key levels, hedging pressure, 0DTE contribution |
vrp_regime_check(symbol) | VRP percentile, IV-vs-RV richness, strategy scoring conditioned on the gamma regime |
historical_comparison(symbol, reference_date) | Side-by-side current vs past date, with VIX-context sanity check |
zero_dte_brief(symbol) | Pre-session 0DTE brief — pin risk, expected move, gamma acceleration, ±0.5% hedging tilts |
Example Prompts
Once connected, ask your AI assistant questions like:
- "What is SPX dealer gamma positioning right now?"
- "Show me 0DTE setup for SPY today — pin risk, expected move, gamma acceleration."
- "Give me a full options picture for NVDA — IV, RV, VRP, skew, term, exposure, macro."
- "Replay SPY gamma exposure on 2020-03-16 at 14:00 ET."
- "Calculate Black-Scholes greeks for SPY 580 calls expiring next Friday at 18% IV."
- "What is implied volatility for an NVDA 900 put trading at $12.50 with spot $875?"
- "Where is the gamma flip and call/put walls for QQQ today?"
- "Compare current SPX dealer positioning to 2024-04-19."
- "What's the VRP percentile for AAPL vs its 90-day distribution?"
- "Generate a 0DTE brief for SPY before the open."
Plans & Pricing
Four tiers. Annual saves 20% and locks the price for 12 months.
| Plan | Monthly | Annual (per month) | Annual total | Daily quota | Freshness |
|---|---|---|---|---|---|
| Free | $0 | — | — | 5 / day | 15-minute |
| Basic | $79/mo | $63/mo | $756/yr | 100 / day | 15-second |
| Growth | $299/mo | $239/mo | $2,868/yr | 2,500 / day | 15-second |
| Alpha | $1,499/mo | $1,199/mo | $14,388/yr | Unlimited | No cache (real-time) |
What unlocks at each tier
| Capability | Free | Basic | Growth | Alpha |
|---|---|---|---|---|
| Single-stock GEX (single expiry), call/put walls, gamma flip | ✓ | ✓ | ✓ | ✓ |
| BSM greeks, IV solver, stock quotes | ✓ | ✓ | ✓ | ✓ |
| ETFs / indexes (SPY, QQQ, IWM, SPX) | — | ✓ | ✓ | ✓ |
| DEX / VEX / CHEX, max pain, Market Overview | — | ✓ | ✓ | ✓ |
| Full-chain GEX, 0DTE analytics, option quotes, volatility analytics, AI narrative, Kelly criterion | — | — | ✓ | ✓ |
| Live Screener — 20-symbol Tier 1 universe | — | — | ✓ | ✓ |
| Live Screener — full ~250-symbol universe (REST) | — | — | — | ✓ |
| Advanced volatility (SVI, variance surfaces, arbitrage detection, higher-order greeks surfaces) | — | — | — | ✓ |
| VRP analytics + history | — | — | — | ✓ |
| Historical API — minute-resolution replay since 2018-04-16 | — | — | — | ✓ |
| 99.9% uptime SLA | — | — | — | ✓ |
Tier gating is enforced server-side per tool. Callers hitting a tool above their tier receive a 403 with the required plan in the response body. Current pricing: flashalpha.com/pricing.
SDKs
| Language | Package | Repository |
|---|---|---|
| Python | pip install flashalpha | flashalpha-python |
| JavaScript | npm i flashalpha | flashalpha-js |
| .NET | dotnet add package FlashAlpha | flashalpha-dotnet |
| Java | Maven Central | flashalpha-java |
| Go | go get github.com/FlashAlpha-lab/flashalpha-go | flashalpha-go |
Links
- FlashAlpha — API keys, docs, pricing
- API Documentation
- MCP server docs (canonical)
- llms.txt — machine-readable index for LLMs
- Examples — runnable tutorials
- GEX Explained
- 0DTE Options Analytics
- Volatility Surface Python
- Awesome Options Analytics
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