{"uid":"cap_CoA-v5l6LeSf7OsxcFi84","slug":"quantaflow-x402-api-gateway-alchemy-unichain-mainnet-a8d57de1","name":"QuantaFlow x402 API Gateway – Alchemy Unichain Mainnet","description":"Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.","url":"https://quanta-roan.vercel.app/api/service/alchemy-unichain-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_YtDqEGS29sRkXkJrPGlkv","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 POST requests to Alchemy's Unichain mainnet RPC/API through an x402 micropayment gateway, charging $0.01 USDC per call","exampleAgentPrompt":"Use the QuantaFlow Unichain mainnet gateway to fetch the latest block number — forward a POST to the root path with the eth_blockNumber JSON-RPC body.","exampleUseCases":[{"title":"Fetch token balance on Unichain","prompt":"Query the Unichain mainnet via QuantaFlow to get the USDC balance for wallet address 0xAbC...123 — use the eth_call method on the USDC contract."},{"title":"Monitor DeFi pool state","prompt":"Pull the current reserve amounts from the Uniswap V3 pool at 0xDef...456 on Unichain mainnet using the QuantaFlow Alchemy gateway."},{"title":"Retrieve recent transaction receipt","prompt":"Look up the transaction receipt for hash 0x789...abc on Unichain mainnet through the QuantaFlow gateway using eth_getTransactionReceipt."}],"resultDescription":"The raw upstream response body from Alchemy's Unichain mainnet API, passed through transparently after successful x402 micropayment verification, including JSON-RPC results, blockchain state, or any other data returned by the upstream Alchemy endpoint.","failureModes":["Payment failure: insufficient USDC balance or invalid x402 payment header returns 402 Payment Required","Invalid path: unrecognized API path returns upstream 404 or error","Malformed request body: invalid JSON-RPC body causes upstream 400 error","Upstream unavailability: Alchemy Unichain node downtime causes 502 or 503","Rate limiting: excessive requests may trigger upstream throttling"],"whenToPreferThis":"Choose this endpoint when you need pay-per-request access to Alchemy's Unichain mainnet without managing an Alchemy API subscription or API key — ideal for agents making occasional or unpredictable blockchain queries where a flat subscription is wasteful, or when operating in a web3-native context where USDC micropayments via x402 are already supported.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:45:28.678Z","isFirstParty":false,"canonicalSlug":"quantaflow-x402-api-gateway-alchemy-unichain-mainnet-a8d57de1"}