Cross-DEX price, liquidity and gross arbitrage spread for ONE BSC pair in a single call, across PancakeSwap v2/v3, Biswap and ApeSwap. Returns pricesByVenue[], bestBuy, bestSell, midSpreadBps, crossDex (grossSpreadBps, grossUsd, optimalInput) and liquidity at a stated blockNumber. Requires ?pair=SYM/SYM (first symbol is USD-priceable); optional ?fee= pins one v3 tier. Errors: 400 bad_pair|bad_fee, 404 no_pools, 502 upstream_read_failed. Split views: /price, /liquidity, /route.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.01 USDC | 0x2740...a96F |