{"uid":"cap_pmKGnGjSb6sjepw-l9yxs","slug":"quantaflow-x402-api-gateway-alchemy-arc-testnet-8700a9bb","name":"QuantaFlow x402 API Gateway – Alchemy ARC Testnet","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-arc-testnet?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_hkb9rFGR93MJrLb0ANj_R","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 ARC testnet API via the x402 micropayment protocol, charging $0.01 USDC per call","exampleAgentPrompt":"Hit the Alchemy ARC testnet to fetch the latest block number — use the path /v2/eth_blockNumber with a GET method and pay the per-call fee.","exampleUseCases":[{"title":"Query testnet block data","prompt":"Use the Alchemy ARC testnet gateway to get the latest block number — forward a request to /v2/eth_blockNumber and pay the $0.01 USDC fee per call."},{"title":"Fetch testnet token balance","prompt":"I need to check the token balance for wallet address 0xABC123 on the Alchemy ARC testnet — can you proxy that request through QuantaFlow to /v2/eth_getBalance with the address as a query param?"},{"title":"Send a testnet smart contract call","prompt":"Call the Alchemy ARC testnet via QuantaFlow, POST to /v2/eth_call with this JSON body: {\"to\":\"0xContract\",\"data\":\"0x70a08231\"} to read a smart contract value on the testnet."}],"resultDescription":"The raw upstream response from the Alchemy ARC testnet API is passed through as-is, including the response body and content type, after the $0.01 USDC x402 payment is confirmed.","failureModes":["Insufficient USDC balance causes payment failure and request is rejected","Invalid or missing path parameter results in upstream 404 or routing error","Malformed JSON body causes upstream API error","Alchemy ARC testnet downtime or rate limiting causes upstream failure","x402 facilitator unavailable prevents payment processing","Invalid HTTP method for the specified path returns upstream error"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call access to the Alchemy ARC testnet API without committing to a subscription, especially in agent workflows that require on-demand blockchain data queries billed per request via the x402 micropayment standard.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T18:44:23.006Z","isFirstParty":false,"canonicalSlug":"quantaflow-x402-api-gateway-alchemy-arc-testnet-8700a9bb"}