HTTP 429 Too Many Requests → next tier up has more headroom HTTP 403 Forbidden / Tier Restricted → endpoint or symbol gated to a higher tier HTTP 429 Too Many Requests → next tier up has more headroom HTTP 403 Forbidden / Tier Restricted → endpoint or symbol gated to a higher tier HTTP 429 Too Many Requests → next tier up has more headroom HTTP 403 Forbidden / Tier Restricted → endpoint or symbol gated to a higher tier 403 on any index symbol (SPY, QQQ, SPX, VIX, RUT, IWM, DJX, OEX, XSP, SPXW...) → Basic 403 on /v1/exposure/dex|vex|chex/{symbol} → Basic 403 on /v1/maxpain/{symbol} → Basic 403 on /v1/exposure/summary → Growth 403 on /v1/exposure/narrative → Growth 403 on /v1/exposure/zero-dte → Growth 403 on /v1/volatility → Growth 403 on /v1/optionquote → Growth 403 on /v1/pricing/kelly → Growth 403 on full-chain GEX (no ?expiration=) → Growth 403 on /v1/adv_volatility → Alpha 403 on /v1/vrp → Alpha 403 on /v1/screener (full universe) → Alpha 403 on any historical.flashalpha.com path → Alpha 403 with body mentioning "redistribution" → Startups Plan (or Alpha Node if scaled) 403 on any index symbol (SPY, QQQ, SPX, VIX, RUT, IWM, DJX, OEX, XSP, SPXW...) → Basic 403 on /v1/exposure/dex|vex|chex/{symbol} → Basic 403 on /v1/maxpain/{symbol} → Basic 403 on /v1/exposure/summary → Growth 403 on /v1/exposure/narrative → Growth 403 on /v1/exposure/zero-dte → Growth 403 on /v1/volatility → Growth 403 on /v1/optionquote → Growth 403 on /v1/pricing/kelly → Growth 403 on full-chain GEX (no ?expiration=) → Growth 403 on /v1/adv_volatility → Alpha 403 on /v1/vrp → Alpha 403 on /v1/screener (full universe) → Alpha 403 on any historical.flashalpha.com path → Alpha 403 with body mentioning "redistribution" → Startups Plan (or Alpha Node if scaled) 403 on any index symbol (SPY, QQQ, SPX, VIX, RUT, IWM, DJX, OEX, XSP, SPXW...) → Basic 403 on /v1/exposure/dex|vex|chex/{symbol} → Basic 403 on /v1/maxpain/{symbol} → Basic 403 on /v1/exposure/summary → Growth 403 on /v1/exposure/narrative → Growth 403 on /v1/exposure/zero-dte → Growth 403 on /v1/volatility → Growth 403 on /v1/optionquote → Growth 403 on /v1/pricing/kelly → Growth 403 on full-chain GEX (no ?expiration=) → Growth 403 on /v1/adv_volatility → Alpha 403 on /v1/vrp → Alpha 403 on /v1/screener (full universe) → Alpha 403 on any historical.flashalpha.com path → Alpha 403 with body mentioning "redistribution" → Startups Plan (or Alpha Node if scaled) from flashalpha import FlashAlpha fa = FlashAlpha("YOUR_KEY") # Free tier — works gex = fa.gex("AAPL", expiration="2026-05-15") # Free tier — HTTP 403, you tried an index gex = fa.gex("SPY") # → upgrade to Basic # Basic — HTTP 403, 0DTE is Growth-gated zd = fa.zero_dte("SPX") # → upgrade to Growth # Growth — HTTP 403, SVI is Alpha-gated adv = fa.adv_volatility("SPY") # → upgrade to Alpha # Alpha — HTTP 403, historical is Alpha-only, # but only if your key is on Alpha or above hist = fa.gex("SPY", at="2024-01-15T15:30:00") # → check tier from flashalpha import FlashAlpha fa = FlashAlpha("YOUR_KEY") # Free tier — works gex = fa.gex("AAPL", expiration="2026-05-15") # Free tier — HTTP 403, you tried an index gex = fa.gex("SPY") # → upgrade to Basic # Basic — HTTP 403, 0DTE is Growth-gated zd = fa.zero_dte("SPX") # → upgrade to Growth # Growth — HTTP 403, SVI is Alpha-gated adv = fa.adv_volatility("SPY") # → upgrade to Alpha # Alpha — HTTP 403, historical is Alpha-only, # but only if your key is on Alpha or above hist = fa.gex("SPY", at="2024-01-15T15:30:00") # → check tier from flashalpha import FlashAlpha fa = FlashAlpha("YOUR_KEY") # Free tier — works gex = fa.gex("AAPL", expiration="2026-05-15") # Free tier — HTTP 403, you tried an index gex = fa.gex("SPY") # → upgrade to Basic # Basic — HTTP 403, 0DTE is Growth-gated zd = fa.zero_dte("SPX") # → upgrade to Growth # Growth — HTTP 403, SVI is Alpha-gated adv = fa.adv_volatility("SPY") # → upgrade to Alpha # Alpha — HTTP 403, historical is Alpha-only, # but only if your key is on Alpha or above hist = fa.gex("SPY", at="2024-01-15T15:30:00") # → check tier fa = FlashAlpha("YOUR_KEY", base_url="https://historical.flashalpha.com") gex_then = fa.gex("SPY", at="2024-01-15T15:30:00") fa = FlashAlpha("YOUR_KEY", base_url="https://historical.flashalpha.com") gex_then = fa.gex("SPY", at="2024-01-15T15:30:00") fa = FlashAlpha("YOUR_KEY", base_url="https://historical.flashalpha.com") gex_then = fa.gex("SPY", at="2024-01-15T15:30:00") claude mcp add flashalpha --transport http https://lab.flashalpha.com/mcp claude mcp add flashalpha --transport http https://lab.flashalpha.com/mcp claude mcp add flashalpha --transport http https://lab.flashalpha.com/mcp pip install flashalpha pip install flashalpha pip install flashalpha from flashalpha import FlashAlpha fa = FlashAlpha("YOUR_KEY") gex = fa.gex("AAPL", expiration="2026-05-15") print(f"Gamma flip: {gex['gamma_flip']}") from flashalpha import FlashAlpha fa = FlashAlpha("YOUR_KEY") gex = fa.gex("AAPL", expiration="2026-05-15") print(f"Gamma flip: {gex['gamma_flip']}") from flashalpha import FlashAlpha fa = FlashAlpha("YOUR_KEY") gex = fa.gex("AAPL", expiration="2026-05-15") print(f"Gamma flip: {gex['gamma_flip']}") - Internal-only, no paying subscribers? → Growth ($299/mo). Single-team use, not redistribution. - Paid trading room with subscribers? → Startups Plan ($599/mo) up to 500 subs / $2M / 3 years. Past those caps → Alpha Node ($3,999/mo). - Once per morning on SPY walls? → Basic ($79/mo). 100 req/day. - Every 30–60s during market hours, multi-symbol scan? → Growth ($299/mo). 2,500 req/day fits a polling cadence around /v1/exposure/gex and /v1/exposure/zero-dte. - Every 5s, multi-strategy, multi-process? → Alpha ($1,499/mo). Unlimited, no cache. - Same as above, but you need predictable latency and you're seeing variance under your own load? → Quant Pro ($2,999/mo). Same Alpha features, dedicated infra. - Need point-in-time replay since 2018? → Alpha. The Historical API at historical.flashalpha.com mirrors every live endpoint. Same SDK code, base-URL swap. - Under 500 paying subscribers, under $2M revenue, under 3 years old, only need Growth-equivalent analytics → Startups Plan. - Over those caps, OR you need SVI / VRP / historical / dedicated infra → Alpha Node. - Raw NBBO / tick / trade data → use ThetaData or Polygon. FlashAlpha consumes ThetaData tape and computes analytics on top. - Pre-2018-04 options history → not available for any symbol. Use ORATS or OptionMetrics for decade+ EOD. - Equity fundamentals / earnings / financials → out of scope. - Crypto options → not supported. US equities and ETFs only. - Order routing / execution → not on the hosted API. Pair with your broker. (Enterprise self-hosted ships with IBKR connector.)