{"uid":"cap_X6MOc9_236qWLWVPTIboO","slug":"quantaflow-x402-api-gateway-infura-mainnet-proxy-6751cc22","name":"QuantaFlow x402 API Gateway – Infura Mainnet Proxy","description":"Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.","url":"https://quanta-roan.vercel.app/api/service/infura-mainnet?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_DhXUwElt0k_ihN8cwZYC3","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 Infura's Ethereum mainnet JSON-RPC endpoint via the x402 micropayment protocol, charging $0.01 USDC per call.","exampleAgentPrompt":"Query the Ethereum mainnet through the QuantaFlow gateway — call eth_getBalance for address 0xAbC123... on the latest block and pay the $0.01 USDC fee automatically.","exampleUseCases":[{"title":"Check ETH wallet balance on mainnet","prompt":"Look up the current ETH balance for wallet address 0xAbC123... on Ethereum mainnet using the QuantaFlow Infura gateway — pay the micropayment fee and give me the balance in wei."},{"title":"Fetch latest Ethereum block data","prompt":"Use the QuantaFlow Infura mainnet proxy to call eth_getBlockByNumber for the latest block with full transaction details — I need the block hash, timestamp, and gas used."},{"title":"Query smart contract state on mainnet","prompt":"Call the eth_call method on Ethereum mainnet via QuantaFlow to read the totalSupply of the token contract at 0xDef456... — use block tag 'latest' and pay the per-call fee."}],"resultDescription":"The raw upstream response from Infura's Ethereum mainnet JSON-RPC API is passed through directly, including the JSON-RPC result or error object, HTTP status, and content-type headers, after the x402 micropayment of $0.01 USDC is settled.","failureModes":["Payment failure: insufficient USDC balance or x402 payment not accepted — gateway returns 402 Payment Required","Invalid JSON-RPC method or params: Infura returns a JSON-RPC error object with code and message","Network or upstream error: Infura mainnet temporarily unavailable — 502 or 504 from the gateway","Malformed request body: non-JSON or missing required fields returns a 400 error","Rate limiting by upstream Infura even after payment — rare but possible under high load"],"whenToPreferThis":"Use this endpoint when you need pay-per-call access to Infura's Ethereum mainnet JSON-RPC without committing to a monthly subscription, and your agent stack already supports the x402 micropayment protocol. Ideal for low-frequency or bursty on-chain queries where per-call billing is more economical than a flat subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:43:43.235Z","isFirstParty":false,"canonicalSlug":"quantaflow-x402-api-gateway-infura-mainnet-proxy-6751cc22"}