{"uid":"cap_20wP1JHjPMnsR9LJZm9kQ","slug":"openzoo-pay-per-request-llm-chat-completions-2b6960ae","name":"OpenZoo Pay-Per-Request LLM Chat Completions","description":"Every model with holographic memory in front. No account, no API key, no subscription — pay per request in USDC, TOKEN, LEOS or USDG on Solana, Base, Robinhood Chain, eip155:137, eip155:42161, eip155:10 or eip155:480. The 402 quotes a discount off what the same request costs bought direct.","url":"https://api.openzoo.fun/v1/chat/completions","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"id":"<generation id>","usage":{},"choices":[{"message":{"role":"assistant","content":"<completion>"}}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.000405","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":"$0.00843/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.00843","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.00843","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_j1SXye-W-ec76lGE7H_xV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.00843","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Provides LLM chat completions via a pay-per-request model using crypto payments (USDC, TOKEN, LEOS, USDG) on multiple blockchains — no account or API key required.","exampleAgentPrompt":"Use OpenZoo's pay-per-request chat endpoint — paying in USDC — to generate a concise summary of the following article: 'Quantum computing breakthroughs in 2024 have dramatically reduced error rates, bringing fault-tolerant systems within reach of commercial deployment.'","exampleUseCases":[{"title":"One-off AI drafting without account setup","prompt":"I need to draft a professional email declining a job offer but keeping the door open for future roles — use the OpenZoo pay-per-call chat API with USDC so I don't have to set up another subscription."},{"title":"Crypto-native agent pipeline text generation","prompt":"My Solana-based agent needs to generate product descriptions for three new items in our store — call the OpenZoo chat completions endpoint and pay per request in USDC on Base, no API key needed."},{"title":"Discounted LLM inference for cost-sensitive workloads","prompt":"Can you run this classification prompt through OpenZoo's holographic-memory-backed chat API? I want to take advantage of the discount versus buying direct from the model provider, and pay per call in USDG."}],"resultDescription":"Returns a JSON object containing a generation ID, usage statistics (token counts), and a choices array with the assistant's message role and content string — standard OpenAI-compatible chat completion format.","failureModes":["Payment not received or insufficient USDC/TOKEN/LEOS/USDG balance — returns HTTP 402 with a payment quote","Unsupported blockchain or token — request rejected if chain not in supported list","Malformed request body — 400 error if required fields missing or bodyType mismatch","Model unavailable or overloaded — may return 503 or timeout","Invalid or expired payment — transaction not confirmed on-chain before timeout"],"whenToPreferThis":"Choose this endpoint when you need LLM chat completions without account registration, API keys, or subscriptions — ideal for one-off requests, crypto-native agent pipelines, or when you want to pay per call in USDC or other supported tokens on Solana, Base, or EVM chains. It offers a discount vs. buying direct from the model provider and is compatible with the x402 payment protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:37:33.752Z","isFirstParty":false}