{"name":"Crypto Data API","protocol":"x402","x402Version":2,"version":"2.0.0","description":"Pay-per-call crypto data API. No API keys — payment via USDC on Base L2. Bazaar-indexed for agent discovery.","endpoints":{"/api/price/{coin}":{"price":"$0.01","method":"GET","example":"/api/price/solana"},"/api/top/{n}":{"price":"$0.02","method":"GET","example":"/api/top/10"},"/api/trending":{"price":"$0.01","method":"GET"},"/api/solana/{address}":{"price":"$0.05","method":"GET","example":"/api/solana/7Np41oeXq8..."},"/api/watchlist":{"price":"$0.01","method":"GET"},"/api/history/{coin}":{"price":"$0.03","method":"GET","example":"/api/history/bitcoin?days=7"},"/api/market":{"price":"$0.02","method":"GET"}},"payment":{"protocol":"x402","x402Version":2,"asset":"USDC","assetAddress":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"Base (L2, chainId 8453)","networkCAIP2":"eip155:8453","how":"Client receives HTTP 402 + PAYMENT-REQUIRED header (base64), pays USDC, retries with PAYMENT-SIGNATURE header","facilitator":"https://api.cdp.coinbase.com/platform/v2/x402","wallet":"0x0000000000000000000000000000000000000000","bazaar":"Indexed on agentic.market Bazaar for agent discovery"}}