{"uid":"cap_ohaIUDjddVAdWMYD2HZhF","slug":"netintel-dev-gpt-5-4-nano-chat-completions-x402-11de7096","name":"netintel.dev GPT-5.4-Nano Chat Completions (x402)","description":"Call OpenAI's gpt-5.4-nano via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output. Search terms: OpenAI, gpt-5.4-nano, chat completion, LLM, no API key.","url":"https://netintel.dev/openai/gpt-5-4-nano","method":"POST","headers":{},"bodySchema":{"type":"object","$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":{"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 ~24000 chars total."},"max_completion_tokens":{"type":"number","description":"Max output tokens. Optional — defaults to 1024, capped at 1024."}}},"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-5.4-nano","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_p2ZidT-5aKyXi3-73PWxq","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":"Proxies OpenAI GPT-5.4-Nano chat completions via a pay-per-call x402 endpoint — no OpenAI account or API key required, pay $0.005 USDC per request.","exampleAgentPrompt":"Using the GPT-5.4-nano endpoint, answer this as a helpful assistant: 'What are three practical tips for reducing household energy consumption?' — keep the reply under 300 words.","exampleUseCases":[{"title":"Keyless LLM for quick agent tasks","prompt":"I need to ask GPT-5.4-nano to summarize this paragraph without setting up an OpenAI account — just charge my USDC wallet per call: 'Renewable energy sources, including solar and wind, have grown dramatically over the past decade...'"},{"title":"Automated content drafting pipeline","prompt":"Have the GPT-5.4-nano model write a short product description for a standing desk called 'ErgoRise Pro' — focus on ergonomic benefits, keep it under 150 words, and use a professional tone."},{"title":"On-demand Q&A for a customer-facing bot","prompt":"Send this customer question to GPT-5.4-nano and return the answer: 'How do I reset my two-factor authentication if I've lost my phone?' — system prompt should say 'You are a helpful SaaS support agent.'"}],"resultDescription":"Returns a standard OpenAI chat.completion JSON object including: an id, model name, created timestamp, a choices array with the assistant's message content and finish_reason, and a usage object with prompt_tokens, completion_tokens, and total_tokens. Output is capped at 1024 tokens.","failureModes":["Payment failure or insufficient USDC balance — x402 payment required error","Input exceeds ~24000 character cap — request rejected or truncated","max_completion_tokens above 1024 — silently capped at 1024","Malformed messages array (missing role or content) — validation error","Downstream OpenAI API outage — 502 or timeout response","Network timeout if model inference takes too long"],"whenToPreferThis":"Choose this endpoint when an agent needs GPT-5.4-nano specifically and does not have an OpenAI API key, or when the use case demands strict pay-per-call billing in USDC with no subscription overhead. Prefer it over the gpt-4.1 or gpt-4o-mini siblings when the task is lightweight and cost-sensitive. Avoid it if the task requires more than 1024 output tokens or inputs exceeding ~24000 characters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:49:49.313Z","isFirstParty":false}