{"uid":"cap_hBeHoRhvRaFMDw_nRRnWs","slug":"gambit-nemotron-chat-x402-usdc-on-base-60cd0934","name":"Gambit Nemotron Chat — x402 USDC on Base","description":"Gambit GPU shop. Humans: /signup ($1 credit), X-API-Key on /v1/*, QR Lightning top-up. Bots: L402 Lightning (LIVE) on /l402/*, x402 USDC on Base on /x402/*, or POST /v1/register ($0) then POST /v1/topup/lightning. Handwritten letter POST /x402/letter at $25.00 USDC. Funnel https://gambit.barrioenergy.com. Free probe GET|POST /x402/models.","url":"https://gambit.barrioenergy.com/x402/chat/nemotron","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"messages":{"type":"array","items":{"type":"object","required":["role","content"],"properties":{"role":{"type":"string"},"content":{"type":"string"}}}},"max_tokens":{"type":"integer","default":512}}},"responseSchema":{"type":"json","example":{"model":"nemotron-3-super:120b-a12b","message":{"role":"assistant","content":"Hi."}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.08","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":"$0.08/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.08","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.08","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LY1YbiuxePm60yrVg7pK4","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.08","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Send a chat message to NVIDIA's Nemotron-3-Super 120B model via Gambit's GPU shop, paying $0.08 USDC per call using the x402 protocol on Base.","exampleAgentPrompt":"Ask the Nemotron 120B model on Gambit: 'Explain the difference between transformer and Mamba architectures in 3 paragraphs' — limit the response to 800 tokens.","exampleUseCases":[{"title":"Crypto-native AI coding assistant","prompt":"Use the Nemotron 120B model on Gambit to write me a Python function that parses JSON from a REST API response and handles missing keys gracefully — keep it under 300 tokens."},{"title":"Research summarization agent","prompt":"Ask Gambit's Nemotron model to summarize the key arguments for and against central bank digital currencies in a concise bullet list, max 512 tokens."},{"title":"Automated content drafting pipeline","prompt":"Send this system prompt and user message to the Nemotron-3-Super model on Gambit and draft a professional product description for a noise-cancelling headphone for e-commerce, up to 600 tokens."}],"resultDescription":"Returns a JSON object with the model name ('nemotron-3-super:120b-a12b') and an assistant message object containing the role ('assistant') and generated text content.","failureModes":["Insufficient USDC balance causes 402 Payment Required with payment instructions","Malformed messages array (missing required 'role' or 'content' fields) returns 400 Bad Request","max_tokens value too large for context window returns error","Model overloaded or GPU unavailable returns 503 Service Unavailable","Invalid x402 payment header or wrong chain causes payment rejection","Empty messages array may return empty or error response"],"whenToPreferThis":"Choose this endpoint when you need inference from NVIDIA's Nemotron-3-Super 120B model specifically, want to pay per-request in USDC on Base without a subscription, are building a crypto-native or x402-compatible agent pipeline, or need a powerful open-weight model accessible via Web3 payment rails rather than a centralized API key subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:37:05.357Z","isFirstParty":false}