{"uid":"cap_a4CnAUZ3YuZNujNKcjpF3","slug":"netintel-dev-gpt-4-1-mini-chat-completion-x402-2d35b967","name":"netintel.dev GPT-4.1-mini Chat Completion (x402)","description":"Call OpenAI's gpt-4.1-mini via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output. Search terms: OpenAI, gpt-4.1-mini, chat completion, LLM, no API key.","url":"https://netintel.dev/openai/gpt-4-1-mini","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["messages"],"properties":{"top_p":{"type":"number","description":"Nucleus sampling. Optional."},"messages":{"type":"array","items":{"type":"object","required":["role","content"],"properties":{"role":{"type":"string","description":"system, user, or assistant"},"content":{"type":"string","description":"Message text"}}},"description":"OpenAI chat messages: [{role:'system'|'user'|'assistant', content:string}]. Input capped ~12000 chars total."},"max_tokens":{"type":"number","description":"Max output tokens. Optional — defaults to 2048, capped at 2048."},"temperature":{"type":"number","description":"Sampling temperature. Optional."}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"id":{"type":"string"},"model":{"type":"string"},"usage":{"type":"object","description":"prompt_tokens, completion_tokens, total_tokens"},"object":{"type":"string","description":"Always 'chat.completion'"},"choices":{"type":"array","description":"Assistant message + finish_reason."},"created":{"type":"number","description":"Unix timestamp (seconds)"}}}}}}},"responseSchema":{"type":"json","example":{"id":"chatcmpl-abc123","model":"gpt-4.1-mini","usage":{"total_tokens":13,"prompt_tokens":11,"completion_tokens":2},"object":"chat.completion","choices":[{"index":0,"message":{"role":"assistant","content":"Hi!"},"finish_reason":"stop"}],"created":1735689600}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_OMy-0_eXkD_QNl3yElZvS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs an OpenAI gpt-4.1-mini chat completion request via a pay-per-call x402 endpoint — no OpenAI account or API key required, billed at $0.005 USDC per request.","exampleAgentPrompt":"Ask gpt-4.1-mini: 'You are a helpful assistant. Explain the difference between TCP and UDP in plain English, in under 150 words.' Use up to 300 output tokens and a temperature of 0.7.","exampleUseCases":[{"title":"Autonomous agent reasoning step","prompt":"Run this reasoning prompt through gpt-4.1-mini: system says 'You are a logical planner', user says 'Given these three tasks: write report, send email, schedule meeting — what order should I do them in and why?' Return up to 512 tokens."},{"title":"Customer support draft generator","prompt":"Using gpt-4.1-mini, generate a polite reply to this customer complaint: 'I ordered 5 days ago and my package still hasn't arrived.' Keep the tone professional and the response under 100 words."},{"title":"Code explanation for non-technical users","prompt":"Have gpt-4.1-mini explain this Python snippet in plain English for a non-programmer: 'for i in range(10): print(i * 2)'. Keep temperature at 0.3 for a precise, factual explanation."}],"resultDescription":"Returns a standard OpenAI chat.completion JSON object containing: the assistant's reply text in choices[0].message.content, finish_reason (e.g. 'stop'), token usage breakdown (prompt_tokens, completion_tokens, total_tokens), model name, completion ID, and Unix creation timestamp. Output is capped at 2048 tokens.","failureModes":["Payment not received or x402 handshake fails — request rejected before model is called","Input messages total exceeds ~12,000 character cap — request rejected or truncated","max_tokens exceeds 2048 cap — clamped to 2048 silently or rejected","Malformed messages array (missing role or content fields) — schema validation error","Transient OpenAI API outage upstream — 502 or 503 returned","Network timeout if model inference takes too long"],"whenToPreferThis":"Choose this endpoint when an agent needs GPT-4.1-mini chat completions without managing an OpenAI account, API key, or subscription billing — ideal for pay-per-use agent pipelines, serverless workflows, or rapid prototyping where x402 USDC micropayments are acceptable. Prefer this over the gpt-4.1 sibling endpoint when cost and speed matter more than maximum capability, and over gpt-4.1-nano when output quality needs to be a step above the smallest model.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:52:50.698Z","isFirstParty":false}