{"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/eth-balance","price_usdc":"0.002000","pay_url":"https://kr-x402-mvp.kgy5612.workers.dev/crypto/eth-balance?wallet=0xe4be4d0bd82d8e68203deff81f79ede0529f2617","input_schema":{"type":"object","properties":{"wallet":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Wallet","examples":["0xe4be4d0bd82d8e68203deff81f79ede0529f2617"]}},"required":["wallet"],"additionalProperties":false},"example":{"chain":"base","block":53204016,"wallet":"0xe4be4d0bd82d8e68203deff81f79ede0529f2617","balance_wei":"0","balance_eth":0,"nonce":0},"start_here":"https://kr-x402-mvp.kgy5612.workers.dev/crypto/ping"}