Filter the latest collector candidates on one chain for currently funded markets: canonical V2 and V3 pools against the wrapped coin with at least the minimum wrapped-coin reserve, and Uniswap V4 pools against the native or wrapped coin with active liquidity (V4 only when min_wrapped is zero, since a V4 pool's own coins can't be read); optional stored verdict. Checks at most twenty candidates at one finalized block. Ordered by pair creation, not first liquidity time; most funded markets are scanned in the background within minutes and re-scanned an hour later; unscanned markets are unknown and stored verdicts may be old. Costs $0.003 per successful call in USDC on Base, paid with x402 in the call's _meta; failed calls are free.