{"uid":"cap_NvmKiJjlryAs5mGGpEfbW","slug":"quantaflow-x402-api-gateway-alchemy-celo-sepolia-de33fe4c","name":"QuantaFlow x402 API Gateway — Alchemy Celo Sepolia","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-celo-sepolia?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_cgBq0VP8wBjL41erSQLIY","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 Alchemy Celo Sepolia blockchain RPC/API endpoint via the x402 micropayment protocol, charging $0.01 USDC per call.","exampleAgentPrompt":"Can you query the Celo Sepolia testnet via Alchemy and get the latest block number — use the x402 pay-per-call gateway, POST to the root path with the eth_blockNumber JSON-RPC body.","exampleUseCases":[{"title":"Check Celo Sepolia wallet balance","prompt":"Look up the CELO token balance for wallet address 0xAbC123... on the Celo Sepolia testnet using the Alchemy gateway — call eth_getBalance at the latest block."},{"title":"Fetch latest Celo Sepolia block","prompt":"Get me the most recent block details from Celo Sepolia testnet through the Alchemy proxy — I need the block hash, number, and timestamp."},{"title":"Broadcast test transaction on Celo Sepolia","prompt":"I want to send a raw signed transaction to the Celo Sepolia testnet using the Alchemy endpoint — can you relay it via eth_sendRawTransaction with this hex payload: 0xf86c...?"}],"resultDescription":"The raw upstream response body from Alchemy's Celo Sepolia RPC endpoint is passed through transparently after the $0.01 USDC x402 micropayment is processed. This typically includes standard JSON-RPC result objects containing blockchain data such as block details, transaction receipts, account balances, or contract call return values.","failureModes":["Insufficient USDC balance for x402 payment — returns 402 Payment Required","Invalid or malformed JSON-RPC body — upstream Alchemy error forwarded","Unsupported RPC method for Celo Sepolia — upstream 400/error response","Path routing mismatch — incorrect path parameter results in 404 or upstream error","Alchemy upstream outage — 502/503 passed through","x402 facilitator unavailable — payment cannot be settled"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call access to the Alchemy Celo Sepolia RPC without managing an Alchemy API key subscription, and when your agent already supports x402 micropayment headers. Ideal for low-volume testnet interactions where a subscription is overkill, or for agents operating in web3/DeFi contexts that natively handle USDC micropayments on-chain.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-14T12:45:07.272Z","isFirstParty":false,"canonicalSlug":"quantaflow-x402-api-gateway-alchemy-celo-sepolia-de33fe4c"}