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comparison · 12 min read
FlashAlpha and 68 Alternatives for GEX and VRP APIs
Start with FlashAlpha for US-options GEX, volatility and research tools in one workflow. Compare 68 alternatives by market coverage, analytics and access.
Builds FlashAlpha's options analytics, volatility models and research studies.
Nov 11, 2026
12 min read
ComparisonGEXVRPOptionsAPIProviderDirectory
Published by FlashAlpha
Start with FlashAlpha
Bring GEX, volatility and your research tools into one US-options workflow.
Growth combines current IV/RV spreads, full-chain gamma exposure and eligible REST/MCP access. Add Alpha when you need the dedicated VRP product and covered historical replay.
FlashAlpha at a glance
Provider
Growth includes
Alpha adds
FlashAlpha
Full-chain GEX, gamma levels and current IV/RV spreads across 5, 10, 20 and 30 sessions, with eligible REST and MCP access.
Dedicated VRP analytics, directional and GEX-conditioned outputs, plus covered historical replay. Explore Alpha VRP.
Use the 68-provider directory below to compare market coverage, ready-made analytics, data inputs and access. FlashAlpha is our recommendation for connecting US-options volatility and positioning in one research workflow.
All 69 provider families are listed. Links to individual comparisons become available as those articles are published.
GEX alternatives
Compare gamma levels, strike profiles and historical coverage for the symbols you trade.
Provider details reviewed November 11, 2026. Comparison links appear as articles are published.
Provider
What it offers
API access
HermesGEX
Index and ETF gamma levels, with ES/NQ levels converted from cash-market instruments.
Free API with a 30-minute data delay.
FlowMonkey
Gamma exposure, walls and a flip level for three ETFs. Its flip uses the cumulative strike profile.
No API key required. Data is delayed by 15 minutes.
Bullflow
Previous-close GEX summaries, plus live and five-minute historical GEX products.
Free closing summaries. Paid GEX routes use four credits per request.
AlgoX Flow
Two gamma APIs with different coverage. The gamma-map route caps requests at 250 contracts and caches gamma for 15 minutes. The other route uses the nearest expiry and 10- or 60-minute caching.
Free access. Choose the route that matches the expiry coverage you need.
FinzData
Daily GEX with 30 days of recent history. Check availability for the symbols and dates your research needs.
Free API key for the recent daily dataset.
SquawkFlow
SPX GEX and historical snapshots. Responses have a 25-second cache; source timestamps show when the market data was observed.
Public endpoints allow 60 requests per hour without a key.
LiveBriefing / LevelBriefing
Advertises delayed GEX levels for indices and ETFs.
Free API access is advertised. Confirm that your required symbols currently return data.
PredixLab
Daily GEX for equity constituents, with free delayed data and a paid latest-day product.
Free data has a 10-calendar-day delay. Paid access supplies the latest published day.
Trading Volatility
GEX analytics with separate personal-use and redistribution products.
No-key demo available. Full API access requires a subscription.
Tradytics
GEX, IV30-minus-RV30 analytics and daily volatility history from November 2025.
Pro API access. Intraday positioning and longer daily history have different coverage.
Quant Data
Options exposure and volatility analytics through REST and MCP.
API subscription is $149.99/month. Commercial use requires separate permission.
gexbot
Gamma levels and positioning data with intraday and end-of-day history.
Quant includes intraday REST access. End-of-day REST is available on all active paid tiers.
GEXStream
GEX snapshots and historical data for its tracked symbols.
API access on qualifying Flow/Quant plans, with personal-use and symbol limits.
GammaFlip
GEX analytics for US markets and crypto, sold as separate or combined plans.
Paid plans with a time-limited trial.
QuantWheel
GEX, higher-order exposures, heatmaps, events and historical analytics.
Quant provides full REST access. Registered free MCP access has separate allowances. Personal-use terms apply.
GEXBoard
Gamma levels, heatmaps and rolling history for selected US symbols.
Advertised founder API cost is $128/month, combining $39 Pro and the $89 API add-on.
ZeroGEX
Gamma summaries, strike profiles and historical analytics.
Free delayed MCP access. Full REST access requires Pro.
GexVision
US gamma analytics calculated from 15-minute delayed market data.
Paid API access. Faster recalculation still uses the delayed source data.
quantedOptions
Stock/ETF analytics and a separate participant-level SPX/VIX product.
The broad-ticker API is $79/month. The SPX/VIX API requires the $399/month Ultra plan.
FederGEX
GEX and flow analytics for six index and ETF symbols.
Elite includes personal-use API access. Futures dashboard data is excluded from the API.
CloudTrades
Options flow and GEX snapshots through keyed API routes.
API key required. Ask the provider about pricing and symbol coverage.
FearGreedFlow
SPY GEX alongside broader market-sentiment data.
GEX requires the $20/month Pro plan.
ZDtE
SPX 0DTE gamma and level analytics.
Pro API/MCP access is advertised. Confirm API limits and use rights before subscribing.
GammaTape
Index and ETF gamma levels displayed in ES/NQ price points, using cash-options exposures.
The $99/month Max plan includes an API key.
BackQuant
Multi-venue crypto GEX analytics. Its Terminal also advertises equity GEX.
Paid crypto API access. Equity GEX is available through the Terminal only.
Laevitas
Crypto-options gamma exposure and derivatives analytics.
Subscription API. Confirm the current API version and GEX routes for your integration.
GEX Monitor
BTC gamma summaries and more detailed crypto-options exposure data. Source and calculation timestamps identify different stages of the data.
Public latest-summary access, with deeper data subject to access restrictions.
GEX and VRP alternatives
These providers offer both gamma exposure and volatility metrics. The available formulas, history and API access depend on the product and plan.
Provider details reviewed November 11, 2026. Comparison links appear as articles are published.
Provider
What it offers
API access
Unusual Whales
US-options exposure, volatility analytics and VRP history.
Paid API. Forward-realized results include the date their realized window finishes.
ApexVol
US-options GEX and IV/RV analytics, including earnings-adjusted volatility measures.
Premium is $95/month, billed monthly, and includes VRP, GEX and flow.
Skylit
GEX and Tempest event/volatility analytics, including VRP.
Tempest requires Developer or qualifying Pro access. Initiate provides a separate GEX entitlement.
OptionsDataAPI
US-options GEX, VRP and term-structure analytics from optionsdataapi.com.
Paid subscriptions or per-request USDC payments through x402.
Optionomics
Dealer exposure and IV/RV metrics for developer workflows.
Developer API plans. Selected free MCP tools return previous-session data.
CryptoGamma
BTC/ETH GEX snapshots with implied volatility, realized volatility and a premium field.
Free token advertised. Confirm volatility windows, quotas and permitted use.
CayøLargo
Crypto volatility surfaces with ATM IV, realized-volatility windows and premium metrics.
Business access requires KYB. The IV-minus-RV30 premium requires Pro.
CryptoDataDownload
BTC/ETH volatility and GEX analytics, alongside downloadable market datasets.
Full API access requires a subscription. Free CSV and web products have separate access terms.
DripMetrics AI
BTC GEX and a premium calculated as squared IV minus squared annualized RV. Its short realized windows produce a variance-unit measure.
Paid per request through x402.
Kaiko / former Amberdata
Institutional crypto derivatives analytics, including former Amberdata products.
Commercial access. Confirm the available GEX and VRP endpoints with Kaiko.
VRP and directly available IV-RV metrics
A volatility premium depends on the implied-volatility maturity and the realized-volatility window. Those definitions determine which readings can be compared.
Provider details reviewed November 11, 2026. Comparison links appear as articles are published.
Provider
What it offers
API access
Alphanume
Daily equity IV/HV screening using IV from a listed expiry near 30 days. The actual expiry varies.
Paid API for the screening product.
Oanor
Index and commodity volatility-premium products, plus BTC/ETH DVOL-premium analytics.
The documented free API tier allows 690 calls per month.
Sharpe Two
VRP snapshots, timelines and term structures.
Developer API requires Pro Trader. Ask for the VRP formula and window definitions when evaluating the data.
Madjik
A BTC premium metric calculated as DVOL minus realized volatility from hourly prices. Choose the metric variant with the window your research needs.
Paid subscription for API access.
CryptoDataAPI
BTC/ETH implied and realized volatility, with IV-minus-RV premium data.
Current BTC IV/VRP is free with a key. ETH requires Pro; history and term structure require Pro Plus.
Futu / moomoo OpenAPI
Contract-level options volatility data, including IV minus historical volatility.
Broker and market-data entitlements apply across the Futu/moomoo platform family.
Options data, analytics and brokerage infrastructure
Options chains, Greeks and historical datasets support custom calculations. Several providers also offer their own analytics and backtesting tools.
Provider details reviewed November 11, 2026. Comparison links appear as articles are published.
Provider
What it offers
API access
ORATS
Options data, research analytics and backtesting. End-of-day history starts in 2007; one-minute history starts in August 2020 for about 6,000 symbols.
Commercial data plans. Coverage varies by dataset.
ThetaData
Options market data, Greeks and IV for historical research.
Data subscription and Theta Terminal required. Local MCP setup has separate requirements.
Massive
Options snapshots with Greeks, IV and open interest.
Options-data subscription, with fields and entitlements determined by the plan.
Tradier
Broker options chains with ORATS-powered Greeks.
Broker and market-data permissions apply, together with data-use licensing.
Alpaca
Options snapshots and historical data through broker/developer APIs.
Indicative and OPRA feed access have different entitlements.
Deribit
Crypto-options market data and volatility-index inputs for building your own analytics.
Public market-data inputs. GEX and VRP calculations require your own methodology.
Intrinio
Commercial options chains, Greeks and historical products.
Options-data API with product-specific subscriptions.
IVolatility
Options data and calculated dealer/GEX history from 2014, plus signed-flow history from 2015.
Commercial analytics products with product-specific coverage and licensing.
Cboe DataShop / All Access
Exchange options datasets with optional analytics.
Product-specific API access and data-use rights.
SpiderRock
Institutional volatility surfaces, options analytics and historical datasets.
Commercial access configured for your data requirements.
Databento
OPRA option trades and quotes for building your own analytics.
Options quotes and chains for broker-connected applications.
IBKR market-data entitlements and TWS or IB Gateway required.
OptionMetrics
Historical option prices, IV and Greeks in licensed research datasets.
Dataset licensing and delivery depend on the selected product.
Market Data
Options chains with IV, Greeks and open interest.
REST API with user and OPRA entitlement requirements.
Barchart OnDemand
Intraday and end-of-day options-chain analytics.
Commercial OnDemand API licensing is purchased separately from retail website plans.
Alpha Vantage
Historical and real-time options data with IV and Greeks.
Options-specific subscription requirements apply.
EODHD
US options contracts and chain data.
Options-product and add-on requirements depend on the plan.
CME Group
Native futures-options Greeks and implied volatility.
Exchange analytics with contract-specific units and multipliers.
Dashboards, datasets and beta services
These products offer other ways to explore options positioning or volatility. Their delivery formats and access requirements vary.
Provider details reviewed November 11, 2026. Comparison links appear as articles are published.
Provider
What it offers
API access
SpotGamma
Trader dashboards and exposure reports, with Equity Hub data exports.
Dashboard subscriptions with Equity Hub exports. Public API access is unavailable.
SqueezeMetrics
Public DIX/GEX index resources and paid ticker-level analytics. Ticker G ratios and index dollar GEX use different units.
Paid API through sqzme, alongside public chart and CSV resources.
StashGamma
A GEX dashboard and a separate end-of-day stock-data API.
Stock-data API documented. Ask the provider about programmatic GEX access.
Clous
Gamma analytics with API documentation and example responses.
Confirm production availability, subscription requirements and sample data before integration.
AWebLabs GEX
A GEX engine offered through a private beta.
Approval required. Quotas and terms depend on the partner agreement.
Scry Fund / chiayong scanner
A volatility scanner with public read-only summaries and an OpenAPI description.
Public summary API. Confirm metric definitions and data-use rights.
Greeks.pro
Options analytics with a GEX API listed for Trader+.
Request a sample response when evaluating Trader+ API access.
Build the workflow in FlashAlpha
Start with positioning. Use Growth's full-chain GEX and gamma levels for your selected US-optionable symbol.
Add volatility context. Compare current IV with realized-volatility windows through Growth's volatility analytics.
Extend into research. Alpha adds dedicated VRP outputs and covered historical replay for the symbols and dates available.
For a five-symbol monitor using two routes 78 times per session, the baseline is 780 requests before discovery, pagination and retries. Growth includes 2,500 requests/day.
Growth combines current IV/RV spreads, full-chain GEX, gamma levels and eligible REST/MCP access. Choose Alpha for dedicated VRP analytics and covered historical replay.
Why are some comparison links unavailable?
New comparison articles are published daily. All providers stay visible in this directory, and each comparison link appears when its article is published. Some dashboard, dataset and beta services are covered in broader guides.
What should I compare before subscribing?
Match the markets, analytics, update times and API access your workflow needs. For GEX, check the exposure assumptions and included expirations. For VRP, check the formula and realized-volatility window. Include required API add-ons and data-use rights in your cost comparison.
Sources
Published by FlashAlpha. Product descriptions, prices and API access were reviewed against official documentation on November 11, 2026.
Product descriptions, prices and access requirements come from the official sources listed above. Selected public API samples were also inspected. Feed reliability and intraday freshness require ongoing testing.
Futu/moomoo, Massive/former Polygon, LiveBriefing/LevelBriefing and Kaiko/former Amberdata each count as one provider family. OptionsDataAPI and OptionData are separate businesses.
