{"uid":"cap_yhP1KXB6zpS18ijiehjhl","slug":"gedx402-gpt-oss-120b-llm-via-x402-3b97b08a","name":"GEDX402 GPT-OSS-120B LLM via x402","description":"x402 workers ai. pay with usdc on base, polygon, arbitrum, world, or solana. no api keys.","url":"https://llm.gedx402.com/v1/llm/gpt-oss-120b","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"messages":{"type":"array","items":{"type":"object","required":["role","content"],"properties":{"role":{"enum":["system","user","assistant"],"type":"string","description":"Speaker role for this turn."},"content":{"type":"string","description":"Message text for this turn."}}},"description":"Conversation turns in order (system, user, assistant)."},"max_tokens":{"type":"integer","maximum":4096,"minimum":1,"description":"Maximum tokens to generate in the assistant reply."}}},"responseSchema":{"type":"json","example":{"model":"@cf/openai/gpt-oss-120b","response":"Hello!"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_C2d46hp2-8Qpxr8eYrBR9","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs a 120B open-source GPT-class language model inference call, paid per-call in USDC via x402 with no API key required.","exampleAgentPrompt":"Ask the GPT-OSS-120B model this for me — no API key needed, just pay per call in USDC: 'You are a helpful assistant. What are the top three benefits of renewable energy?' Keep the response under 200 tokens.","exampleUseCases":null,"resultDescription":"A JSON object containing the model name ('model': '@cf/openai/gpt-oss-120b') and the generated assistant reply text ('response': '...'). The response is the raw text completion from the 120B model for the provided conversation input.","failureModes":["Payment not received or insufficient USDC balance — returns HTTP 402 requiring payment","Invalid message schema (missing role or content fields) — returns 4xx validation error","max_tokens exceeds 4096 — returns 400 bad request","Model unavailable on Cloudflare Workers AI backend — returns 5xx","Unsupported payment chain specified — payment rejected at facilitator level"],"whenToPreferThis":"Choose this endpoint when you need a large (120B parameter) open-source GPT-class model with no API key registration, paying strictly per call in USDC via x402. Ideal for agents that need anonymous or wallet-based LLM access, or when avoiding subscription-based API keys. Prefer over smaller models when response quality from a 120B model matters. Good fit for crypto-native pipelines already using x402 for other services.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:44:31.464Z","isFirstParty":false}