{"uid":"cap_E_fuZRDMcuZiYglD0rMoS","slug":"quantaflow-x402-api-gateway-rapid-onecash-b183f102","name":"QuantaFlow x402 API Gateway – rapid-onecash","description":"Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.","url":"https://quanta-roan.vercel.app/api/service/rapid-onecash?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_HoteGmmBUo9EUHQE56zKX","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 rapid-onecash upstream service via the x402 micropayment protocol, charging $0.01 USDC per call.","exampleAgentPrompt":"Forward a POST request to the rapid-onecash service at path '/convert' with body '{\"amount\":100,\"currency\":\"USD\"}' through QuantaFlow, paying the $0.01 USDC x402 fee automatically.","exampleUseCases":[{"title":"DeFi currency conversion via onecash","prompt":"Send a POST to the rapid-onecash '/convert' path with body '{\"amount\":500,\"from\":\"USD\",\"to\":\"ETH\"}' through QuantaFlow — handle the $0.01 USDC micropayment for me."},{"title":"Fetch onecash account balance","prompt":"Use QuantaFlow to call rapid-onecash at path '/balance' with query '{\"wallet\":\"0xABC123\"}' and give me back whatever the upstream returns — pay the x402 fee automatically."},{"title":"Submit onecash transaction via gateway","prompt":"Forward a POST request to rapid-onecash at path '/transaction' with body '{\"to\":\"0xDEF456\",\"amount\":\"10\"}' through the QuantaFlow x402 gateway, covering the $0.01 USDC per-call charge."}],"resultDescription":"The raw response body and content type from the rapid-onecash upstream service, passed through transparently after the x402 micropayment of $0.01 USDC is settled. No transformation is applied to the upstream response.","failureModes":["Payment failure: insufficient USDC balance causes x402 payment to fail and request is not forwarded","Upstream error: rapid-onecash service returns 4xx/5xx which is passed through as-is","Invalid path: requesting a path not supported by rapid-onecash upstream returns an error","Malformed body: invalid JSON in body field may cause upstream rejection","Gateway timeout: rapid-onecash upstream may be slow or unavailable"],"whenToPreferThis":"Choose this endpoint when you specifically need to access the rapid-onecash upstream service and want to pay per-call using the x402 USDC micropayment protocol without setting up your own billing or API key arrangement. Prefer this over direct API calls when you want a Coinbase-ecosystem-compatible pay-as-you-go model for DeFi/web3 tooling.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:48:25.104Z","isFirstParty":false,"canonicalSlug":"quantaflow-x402-api-gateway-rapid-onecash-b183f102"}