Use when a token has no Chainlink feed (long-tail, new or memecoins) and you need its current market price: finds every Uniswap v3 pool of the token against WETH, USDC (and USDT on Ethereum) across fee tiers, reads each pool's price (slot0) and reserves in one multicall, converts to USD with Chainlink, and returns the price from the deepest pool plus all pools with their depth. Flags thin liquidity. Uniswap v3 only (Aerodrome and other DEXs not included). Paid tool: x402 USDC on Base, $0.002 per successful call; call without payment to receive the PaymentRequired object.