x402 Market Feed: ranked paid-resource demand signals from x402 discovery, including 30-day calls, unique payers, price,

x402 Market Feed: ranked paid-resource demand signals from x402 discovery, including 30-day calls, unique payers, price, estimated gross revenue, tags, niche summaries, and a buildBrief with recommended experiments, pricing rules, and do-not-build warnings for agents deciding what crypto/API endpoint to build, buy, or price. The crypto preset is shaped for agents evaluating token-risk, crypto-news, onchain-prefilter, and x402 seller-tool demand.