{"uid":"cap__erNuf3MCnBxhTCbelS1T","slug":"quantaflow-x402-api-gateway-alchemy-citrea-mainnet-fd160361","name":"QuantaFlow x402 API Gateway — Alchemy Citrea 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-citrea-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_n5cu1Lf-SFdQak6X8XC7X","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 API requests to Alchemy's Citrea mainnet node via x402 micropayment protocol, charging $0.01 USDC per call","exampleAgentPrompt":"Call the Alchemy Citrea mainnet node to get the latest block number — route it through QuantaFlow, forwarding the JSON-RPC body '{\"jsonrpc\":\"2.0\",\"method\":\"eth_blockNumber\",\"params\":[],\"id\":1}' to the root path.","exampleUseCases":[{"title":"Check Citrea mainnet account balance","prompt":"Query the Alchemy Citrea mainnet via QuantaFlow to get the ETH balance for address 0xAbC123... — send eth_getBalance with 'latest' as the block parameter."},{"title":"Fetch latest Citrea block details","prompt":"Use QuantaFlow to hit the Alchemy Citrea mainnet RPC and retrieve the full details of the latest block, including all transactions."},{"title":"Check Citrea transaction receipt","prompt":"I submitted a transaction on Citrea mainnet with hash 0xDEF456… — can you use QuantaFlow to call Alchemy and fetch the receipt so I can confirm it was mined?"}],"resultDescription":"The raw upstream response from Alchemy's Citrea mainnet API is passed through unchanged, including the response body and content type, after the x402 micropayment of $0.01 USDC is settled.","failureModes":["Insufficient USDC balance causes payment failure and request is rejected","Invalid path or method results in upstream 404 or 400 error passed through","Malformed JSON body causes upstream RPC parse error","Citrea mainnet node downtime leads to upstream timeout or 503","Unsupported JSON-RPC method returns upstream error response"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call access to Alchemy's Citrea mainnet RPC without committing to a subscription, or when building an agent that makes sporadic Citrea blockchain queries and wants to pay $0.01 USDC per request via the x402 protocol rather than managing API keys.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:31:09.968Z","isFirstParty":false,"canonicalSlug":"quantaflow-x402-api-gateway-alchemy-citrea-mainnet-fd160361"}