{"currency":"USDC","token_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","decimals":6,"network":{"name":"base-mainnet","chain_id":8453},"unit":"one HTTP request to /api/v1/protected-data","price_per_request":"0.01","price_per_request_units":"10000","no_subscription":true,"no_minimum":true,"billing":"Per call. Nothing is charged for a 402, a 4xx, or a 5xx — only a 200 delivery is billable.","payment_schemes":["exact","obolpay-tx-receipt"],"gas":{"exact":"The gateway pays the settlement gas. You pay only the quoted USDC.","obolpay-tx-receipt":"You send the transfer yourself, so you pay the Base gas on top of the quoted USDC."},"prepaid":{"description":"Deposit once, then spend gaslessly with signed vouchers. Same per-call price.","topup":"POST https://x402.obolpay.xyz/account/topup","balance":"GET https://x402.obolpay.xyz/account/{address}","refundable":"Unspent prepaid balance is refundable on request to the depositing address."},"refunds":{"freshness_sla_seconds":900,"policy":"If the data is staler than the freshness SLA you are not charged for it: the call is either refused before delivery (HTTP 503) or the charge is credited back to your prepaid balance. The test is elapsed seconds only — no discretion, no dispute.","duplicate_payments":"A payment authorization is single-use. Re-presenting a consumed one returns the data you already bought, and is never charged twice."},"free":["402 challenge with a real data preview","/stats","/.well-known/x402","/llms.txt","/client.py","/mcp-server.py","/verify-receipt"],"terms":"https://x402.obolpay.xyz/terms"}