{"sample":true,"free":true,"note":"Static example of the paid response shape (not live data). Drop sample=1 and pay via x402 for live data. Failed calls (4xx/5xx) are never charged.","path":"/crypto/chain-rank","price_usdc":"0.003000","pay_url":"https://kr-x402-mvp.kgy5612.workers.dev/crypto/chain-rank?sort=momentum&chain=Base","input_schema":{"type":"object","properties":{"sort":{"type":"string","enum":["momentum","tvl","volume"],"description":"Ranking key (default momentum)"},"chain":{"type":"string","maxLength":40,"description":"Optional chain to focus, e.g. Base, Solana, Hyperliquid","examples":["Base"]}},"additionalProperties":false},"example":{"updated_at":"2026-10-30T07:30:00Z","sort":"momentum","source":"DefiLlama DEX volume + chain TVL (10 min cache)","chains":[{"rank":1,"chain":"Base","chain_id":8453,"tvl_usd":5780000000,"tvl_share_pct":5.1,"tvl_change_7d_pct":2.1,"tvl_change_30d_pct":4,"tvl_flow":"flat","dex_volume_24h_usd":1466645030,"dex_volume_7d_usd":6848442299,"dex_volume_30d_usd":29794587087,"dex_change_7d_over_7d_pct":16.9,"dex_change_30d_over_30d_pct":10.17,"flags":[],"momentum_score":11.1,"trend":"GROWING","tvl_usd_rank":3,"dex_volume_7d_usd_rank":4,"momentum_score_rank":1}],"focus":{"chain":"Base","rank":1,"trend":"GROWING"},"summary":{"fastest_growing":"Base","growing":["Base"],"shrinking":[],"biggest_by_tvl":"Ethereum","busiest_dex_7d":"Solana"},"next":["/crypto/defi-tvl?chain=Base","/crypto/gas-compare"]},"start_here":"https://kr-x402-mvp.kgy5612.workers.dev/crypto/ping"}