{"uid":"cap_oytRi_0EeTUoAQsG9hBZH","slug":"x402-nvidia-gpt-oss-20b-nim-api-709d79a8","name":"X402-NVIDIA GPT-OSS-20B NIM API","description":"Access 48+ NVIDIA NIM AI models via x402 micropayments. Chat completions, vision, safety, translation, and more.","url":"https://x402-nvidia.vercel.app/api/gpt-oss-20b","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"object","example":{"choices":[{"message":{"role":"assistant","content":"Hello!"}}]},"properties":{"choices":{"type":"array","description":"Model responses"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.135323","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":"$0.135323/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.135323","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.135323","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oqqoepLZ_FzrOVwsfAqCL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.135323","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs inference on the NVIDIA NIM GPT-OSS-20B model via x402 micropayments, returning chat completion responses.","exampleAgentPrompt":"Use the NVIDIA NIM GPT-OSS-20B model to answer this question: 'What are the key differences between transformer and recurrent neural network architectures?' and pay via x402 micropayment.","exampleUseCases":[{"title":"Summarize technical documentation automatically","prompt":"Use the NVIDIA NIM GPT-OSS-20B model to summarize this technical whitepaper into five concise bullet points, and pay via x402 micropayment: [paste document text here]"},{"title":"Generate code review feedback","prompt":"Use the NVIDIA NIM GPT-OSS-20B model to review this Python function for bugs, performance issues, and style improvements, then pay via x402 micropayment: [paste code here]"},{"title":"Translate customer support messages","prompt":"Use the NVIDIA NIM GPT-OSS-20B model to translate this customer support message from Spanish to English while preserving tone and context, and pay via x402 micropayment: [paste message here]"}],"resultDescription":"A chat completion object containing an array of choices, each with an assistant message including role and generated text content.","failureModes":["Insufficient USDC balance or failed x402 micropayment results in 402 Payment Required","Malformed request body returns 400 Bad Request","Model overload or NVIDIA NIM backend unavailable returns 503","Empty or missing messages input may return empty or error response","Rate limiting may apply if too many calls are made in rapid succession"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call inference on the GPT-OSS-20B open-source model without managing API keys or subscriptions, especially when using x402 USDC micropayments for autonomous agent billing at $0.135 per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:57:00.097Z","isFirstParty":false}