Sell-side liquidity is pulled live from MEXC's public order book (api.mexc.com/api/v3/depth?symbol=ZEPHUSDT&limit=5000), proxied and edge-cached for ~15 s. The simulation walks each real ask level in order, consuming actual MEXC quantities at actual MEXC prices — so the price impact you see reflects today's market, not a synthetic guess.
Above the book: if an order is large enough to consume all visible MEXC asks (or MEXC is temporarily unreachable), the simulation continues onto a synthetic ladder of 1,500 ZEPH per penny up to $5, thinning at higher prices. This keeps outsized orders from breaking the model.
Protocol state is pulled live from explorer.zephflow.live. APY uses the CryptoNote emission decay schedule with a 0.6 ZEPH/block tail; 5% of every block's emission is auto-converted to ZSD and distributed to ZYS holders.