{"uid":"cap_NmIgCp-9cFN2fkXxBFiIh","slug":"magnum-ai-open-ai21-endpoint-129138b0","name":"Magnum.ai Open AI21 Endpoint","description":"Pay-per-call API marketplace with 150 endpoints powered by x402 payments on Base chain.","url":"https://magnum-ai-flame.vercel.app/api/open-ai21?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"object","example":{"result":{"data":"example response"}},"properties":{"result":{"type":"object","description":"API response data"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.06","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":"$0.06/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.06","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.06","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_93Knie21YS1X8ZNm_CFS9","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.06","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Pay-per-call AI endpoint (tagged open-ai21) on the Magnum.ai marketplace, accepting POST requests and returning an API response object via x402 micropayment on Base chain.","exampleAgentPrompt":"Call the Magnum.ai open-ai21 endpoint on Base with my request payload — it charges $0.06 USDC per call via x402, so go ahead and authorize the payment and return the result.","exampleUseCases":null,"resultDescription":"A JSON object with a 'result' field containing the API response data from the open-ai21 endpoint.","failureModes":["Insufficient USDC balance for x402 payment — payment rejected","Invalid or missing request payload — malformed input object","Endpoint unavailable on Vercel deployment — 502/503 error","x402 payment protocol failure — Base chain transaction not confirmed","Rate limiting or quota exceeded on the marketplace"],"whenToPreferThis":"Choose this endpoint when you need to call the specific open-ai21 endpoint on the Magnum.ai marketplace and are set up to handle x402 micropayments on Base chain at $0.06 USDC per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:31:02.381Z","isFirstParty":false,"canonicalSlug":"magnum-ai-open-ai21-endpoint-129138b0"}