All projects on Solana matching “mark”

When to use: you already have model inputs (S or forward mark, K, T, r, σ) and need fair value + hedge ratios — not market-premium IV. European BSM price + analytic Greeks (delta, gamma, vega, theta, rho). Works for equity spots and power/commodity forwards (use the maturity mark as spot). USDC exact on Solana/Base. Free fixed sample: GET /v1/demo/option-price.

Funding rate for any Hyperliquid perp: the raw rate, its interval in hours, the 8h equivalent, the annualised rate, next funding time and mark price. Use when you need to answer: What is the funding rate on this perp? Without a symbol: funding rates for the SOL and BTC perps on Hyperliquid, with open interest. The whole table with 30-day z-scores: /api/funding-radar.

Compact LLM-friendly Hyperliquid perp market brief in one call: a plain-English brief_text paragraph plus JSON for BTC/ETH/SOL/HYPE (mark, 24h change, funding APR, predicted funding, OI and OI change), top-5 funding extremes each side, largest whale net tilts, nearest whale liquidation levels for the majors, and HL listing/delisting events with our first-seen timestamps. Freshness fields included.

EchoMarkets brief: odds, liquidity, movement and resolution for one Polymarket market

How the forecast for a symbol has changed over time: direction flips, confidence drift, upside_prob evolution, forecast range revision, and audited accuracy of each revision. Each revision includes market_key (e.g. btc-10m, btc-1h, or null for background scheduler) and timeframes. ?hours=24 (max 168), ?market_key=btc-10m to filter by market, ?limit=144 (max 1000), ?summary=1 for summary-only.