{"uid":"cap_vO2UgWNqa8I8VX_jL6gZD","slug":"quantaflow-x402-api-gateway-alchemy-soneium-mainnet-031e2e4d","name":"QuantaFlow x402 API Gateway – Alchemy Soneium 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-soneium-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_-GipIcFMd8dELoLDRW2GW","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 Soneium Mainnet RPC/API via a pay-per-call x402 micropayment gateway at $0.01 USDC per request","exampleAgentPrompt":"Can you check the latest block number on Soneium mainnet using Alchemy — just proxy a POST to the eth_blockNumber RPC method with an empty params array and pay the $0.01 per-call fee?","exampleUseCases":[{"title":"Fetch wallet balance on Soneium","prompt":"What's the ETH balance of wallet address 0xAbC123... on Soneium mainnet right now? Use the Alchemy Soneium gateway to call eth_getBalance."},{"title":"Query recent transaction by hash","prompt":"Look up the details of transaction 0xDEF456... on Soneium mainnet — I need the status, gas used, and block number. Use the Alchemy Soneium endpoint."},{"title":"Read smart contract state on Soneium","prompt":"Call the totalSupply function on the ERC-20 contract at 0x789GHI... deployed on Soneium mainnet and return the result."}],"resultDescription":"The raw upstream response body from Alchemy's Soneium Mainnet node, passed through transparently with its original content type (typically JSON-RPC response with result or error fields), after successful x402 micropayment deduction.","failureModes":["Payment failure: insufficient USDC balance causes 402 response before proxying occurs","Invalid path: unrecognized Alchemy endpoint path returns upstream 404 or error","Malformed JSON body: invalid RPC payload causes Alchemy to return a JSON-RPC error","Network/upstream error: Alchemy node unavailable returns 502 or 503","Rate limit: Alchemy upstream quota exceeded returns 429"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call access to Alchemy's Soneium Mainnet APIs without managing an Alchemy API key or subscription, particularly useful for agents that make infrequent or variable-volume blockchain queries and want to pay only $0.01 USDC per call via the x402 protocol. Prefer it over direct Alchemy access when operating in a web3-native, wallet-based payment context.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:38:46.966Z","isFirstParty":false,"canonicalSlug":"quantaflow-x402-api-gateway-alchemy-soneium-mainnet-031e2e4d"}