{"uid":"cap_8RDndaYwmH2a4s028djdA","slug":"openai-o3-mini-via-mm-family-x402-8fe460b2","name":"OpenAI o3-mini via mm.family (x402)","description":"o3-mini: OpenAI o3 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 1.1/4.4; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model o3-mini:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing","url":"https://openai.mm.family/x402/v1/models/o3-mini/chat/completions?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"model":{"enum":["o3-mini","o3-mini:low","o3-mini:medium","o3-mini:high","o3-mini:xhigh"],"type":"string"},"tools":{"type":"array"},"stream":{"type":"boolean"},"messages":{"type":"array","items":{"type":"object","required":["role","content"],"properties":{"role":{"type":"string"},"content":{"type":"string"}}}},"max_tokens":{"type":"integer"},"service_tier":{"enum":["flex","default","standard","auto","fast","priority"],"type":"string"},"response_format":{"type":"object"},"reasoning_effort":{"type":"string"}}},"responseSchema":{"type":"json","example":{"id":"chatcmpl-x","model":"o3-mini","usage":{"total_tokens":9,"prompt_tokens":8,"completion_tokens":1},"object":"chat.completion","choices":[{"index":0,"message":{"role":"assistant","content":"Hello","refusal":null},"finish_reason":"stop"}],"service_tier":"default"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__RIETSR8-GiZ4vXVAD_66","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs OpenAI o3-mini reasoning model chat completions billed per-call in USDC via x402 micropayment protocol, with selectable reasoning effort levels (low/medium/high/xhigh).","exampleAgentPrompt":"Use o3-mini with high reasoning effort to solve this logic puzzle: a farmer has 17 sheep, all but 9 die — how many are left? Explain your reasoning step by step and limit output to 500 tokens.","exampleUseCases":[{"title":"Hard coding problem with deep reasoning","prompt":"I need o3-mini at xhigh reasoning level to debug this recursive algorithm — it's returning wrong results for edge cases. Here's the code: [paste]. Give me a detailed explanation and a fix, up to 1000 tokens."},{"title":"Fast low-cost reasoning for simple Q&A","prompt":"Use o3-mini on low reasoning effort to answer this quick question: what's the capital of Australia? Keep it under 50 tokens to save on costs."},{"title":"Structured JSON extraction from unstructured text","prompt":"Run o3-mini with medium reasoning to extract the company name, revenue, and founding year from this press release and return the result as a JSON object: [paste text here]."}],"resultDescription":"Returns a standard OpenAI-compatible chat completion JSON object containing the assistant's reply message, token usage breakdown (prompt, completion, total), finish reason, model used, and service tier applied.","failureModes":["Insufficient USDC balance causes x402 payment failure before completion","max_tokens quota too low results in truncated output with finish_reason=length","Invalid model variant string (e.g. typo in o3-mini:level) returns 400 error","Empty or malformed messages array causes request rejection","Overloaded service tier may increase latency or return 503","Empty response (zero completion tokens) is billed as free"],"whenToPreferThis":"Choose this endpoint when you need OpenAI's o3-mini reasoning model with selectable effort levels (low to xhigh) and want to pay per-call in USDC via x402 without maintaining an OpenAI API subscription. Ideal for agents that need trustless, on-chain-friendly AI inference, or for tasks requiring deep multi-step reasoning where GPT-4o-class models underperform.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:41:12.885Z","isFirstParty":false,"canonicalSlug":"openai-o3-mini-via-mm-family-x402-8fe460b2"}