{"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/polygon-rpc","price_usdc":"0.002000","pay_url":"https://kr-x402-mvp.kgy5612.workers.dev/crypto/polygon-rpc?method=eth_blockNumber&params=%5B%5D","input_schema":{"type":"object","properties":{"method":{"type":"string","examples":["eth_chainId","eth_blockNumber"]},"params":{"type":"string","description":"JSON array encoded as a query string","examples":["[]"]}},"additionalProperties":false},"example":{"jsonrpc":"2.0","id":1,"result":"0x89","chain":"polygon","chain_id":137,"upstream":"https://polygon-bor-rpc.publicnode.com","latency_ms":80},"start_here":"https://kr-x402-mvp.kgy5612.workers.dev/crypto/ping"}