{"uid":"cap_cT44udi6H_7EOOWQGpOQI","slug":"saymon-ru-data-api-claude-opus-5-llm-chat-288e5f4d","name":"Saymon RU Data API — Claude Opus 5 LLM Chat","description":"PAYFORAPI.com — окно между ру-рынком и глобальным x402. Глобальный провайдер: твой эндпоинт платят агенты из СНГ. Ру-провайдер: твой сервис — на мировой витрине. Локализация, продвижение, платежи USDC — наша работа.","url":"https://payforapi.com/v1/chat/claude-opus-5","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"id":"msg_abc","model":"cc/claude-opus-5","usage":{"total_tokens":9095,"prompt_tokens":9050,"completion_tokens":45},"choices":[{"index":0,"message":{"role":"assistant","content":"EIP-3009 lets a user authorize a transfer of USDC with a signed message..."},"finish_reason":"stop"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/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_bW7bCjdnU5vaLY5czuYzm","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Provides pay-per-call access to Anthropic Claude Opus 5 via an OpenAI-compatible chat endpoint, accepting up to 40K input tokens and returning up to 4K output tokens for $0.05 per call.","exampleAgentPrompt":"Can you use Claude Opus 5 to write me a detailed 3-paragraph explanation of how EIP-3009 meta-transactions work for USDC, keeping the response under 4096 tokens?","exampleUseCases":[{"title":"Complex reasoning for agent pipeline","prompt":"I need Claude Opus 5 to reason through this multi-step legal contract clause and tell me what the liability implications are — send it the full clause as the user message and return its analysis."},{"title":"Multilingual content drafting","prompt":"Ask Claude Opus 5 to write a professional Russian-language email declining a business proposal politely but firmly, around 200 words."},{"title":"Code explanation and review","prompt":"Send this Python async function to Claude Opus 5 and ask it to explain what it does, identify any bugs, and suggest improvements — keep the output concise."}],"resultDescription":"Returns an OpenAI-compatible JSON response containing the assistant's generated text message, token usage breakdown (prompt, completion, total tokens), a finish reason (e.g. 'stop'), message ID, and the model identifier. The content field holds the raw text output from Claude Opus 5.","failureModes":["Input exceeds ~40K token limit — request rejected or truncated","max_tokens set above 4096 — validation error","Malformed messages array (missing role or content fields) — schema validation error","Payment failure or insufficient USDC balance — 402 Payment Required","Model temporarily unavailable — upstream provider error","Temperature out of valid range — parameter error"],"whenToPreferThis":"Choose this endpoint when you need access to Anthropic's Claude Opus 5 — one of the highest-capability LLMs available — on a pay-per-call basis without a subscription, particularly for agent pipelines that require top-tier reasoning, complex instruction-following, or nuanced text generation. Prefer it over cheaper tiers when task quality matters most, and over self-hosted alternatives when you want zero infrastructure overhead. The x402 micropayment model makes it ideal for sporadic or low-volume agent calls.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:38:38.442Z","isFirstParty":false}