{"uid":"cap_DdKAp-fqVIceKqBt8vG-0","slug":"quantaflow-blockchair-api-gateway-x402-2fcf18ee","name":"QuantaFlow Blockchair API Gateway (x402)","description":"Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.","url":"https://quanta-roan.vercel.app/api/service/blockchair?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"body":{"type":"string","description":"Optional JSON body forwarded to POST requests."},"path":{"type":"string","description":"Path below the selected upstream origin."},"query":{"type":"object"},"method":{"enum":["GET","POST"],"type":"string"}}},"responseSchema":{"description":"The upstream response body and content type are passed through after successful payment."},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_lK-QncIeQ2_V1wca53FgJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Proxies requests to the Blockchair blockchain explorer API via an x402 micropayment-gated gateway, charging $0.01 USDC per call.","exampleAgentPrompt":"Look up the transaction details for Bitcoin tx hash 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b on Blockchair — I need the confirmation count, fee, and block height.","exampleUseCases":[{"title":"Crypto transaction confirmation check","prompt":"Can you check whether the Ethereum transaction 0xabc123...def456 has been confirmed yet, and how many confirmations it has so far?"},{"title":"Blockchain address balance lookup","prompt":"What's the current balance and transaction history for Bitcoin address 1A1zP1eP5QGefi2DMPTfTL5SLmv7Divf Na on Blockchair?"},{"title":"On-chain DeFi data enrichment","prompt":"Pull the latest stats for the Ethereum blockchain from Blockchair — I need total transactions today, average gas price, and mempool size for my DeFi dashboard."}],"resultDescription":"The raw upstream response from Blockchair passed through after successful x402 micropayment: includes blockchain data such as transaction details, address balances, block info, mempool stats, or network statistics depending on the path queried.","failureModes":["Insufficient USDC balance — payment of $0.01 fails, request blocked","Invalid path — Blockchair returns 404 for unrecognized endpoint path","Malformed query parameters — upstream returns 400 or validation error","Rate limit exceeded on upstream Blockchair API — 429 response passed through","Network timeout from upstream Blockchair service"],"whenToPreferThis":"Choose this endpoint when you need on-demand access to Blockchair's blockchain explorer data (Bitcoin, Ethereum, and other chains) without managing your own Blockchair API key, and you want to pay per-use via x402 USDC micropayments rather than a subscription. Ideal for AI agents that query blockchain data infrequently or need pay-as-you-go web3 data access.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T18:44:10.421Z","isFirstParty":false,"canonicalSlug":"quantaflow-blockchair-api-gateway-x402-2fcf18ee"}