Getting Started
Tiers & Limits
Three tiers: Core, Pro and Alpha. Access is controlled by API key. Every endpoint returns data at every tier: the difference is which fields are included, the sampling resolution, and history depth.
Exceeding the daily request quota returns 429. Daily limits reset at midnight UTC. The per-minute burst limit applies on every tier, including those with no daily cap.
The tier principle
Core = WHAT. The measured market: prices, IV, first-order Greeks, open interest, the raw tape. Pro = WHERE. What we compute from it: vol surface, GEX landscape, regimes, positioning signals, liquidity grades. Alpha = WHEN and HOW MUCH. When to act and how confident to be: velocity, concentration, warnings, proprietary scores, cross-asset signals.
What each tier unlocks
Core
The measured market. First-order Greeks (delta, gamma, vega, theta, rho). ATM implied volatility and 25-delta skew. Term structure IV curve across tenors. Net GEX per strike, magnetic strike, gamma flip. Open interest and volume per strike. Raw options and futures trade tape. Mark prices, IV and basis. All 6 coins, every endpoint. Enough to wire the data into your stack and see whether it moves your numbers.
Pro: everything in Core, plus
Everything we compute from the measured fields. 37 Greeks plus Black-Scholes pricing. VRP headline, regime and z-score across 3 RV windows. Vol lifecycle phase. Risk reversal, skew regime and all skew metrics (deep OTM, normalized, momentum). Full term structure with momentum and percentiles. Full GEX landscape with zones, breakouts and gamma regime. GEX outcome hit rates. USD-normalized trades with direction and size buckets. Call/put OI split and positioning signal. Liquidity score, spread, execution costs, cohort liquidity grade. RV stress, breach, VoV and gamma carry regimes. Surface quality and execution recommendation.
Alpha: everything in Pro, plus
Taker-flow corrected GEX (55-60 pct of heuristic is wrong). 9 strike-surface Greeks. Stability, persistence and confidence scores. IV momentum at gamma strikes plus scenario detection. Cross-asset relative value vs BTC (17 cols per tenor). Skew contagion, elasticity and velocity regime. Dynamic signals: spot-vol asymmetry, behavioral regime. RV contamination and shock rollout countdown. Lifecycle confidence and compression duration. Block trade detection and combo parsing. Liquidation flags and execution slippage. OI velocity, HHI concentration, warning system. Usable liquidity, imbalance score, draining alerts. 3rd/4th order cohort Greeks. All 22 Greek ratios.
Field-by-field detail is on the Field Matrix, which shows exactly which of the 1,086 fields each tier reads.
To get started or upgrade, contact api [at] cayolargo [dot] fi. Alpha is quoted per deal from the floor shown: coin coverage, history depth and redistribution rights vary.
Full pricing details at cayolargo.fi/pricing.