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https://ask.singitai.app/.well-known/x402 Our Verdict
A human read this entry. That is the one thing true of everything on the list. Beyond that: nothing. We hold no dated receipt for a knock on this one and we will not backfill a date we cannot show. It is listed because a human read it, and that is all this page will tell you. None of it is a delivery test. We have not paid for this and graded what came back, so read it as "we checked what is stated above," never as "this is worth the money."
Pay-per-call LLM chat in OpenAI, Anthropic Messages and OpenAI Responses request shapes with one URL per model under `/v1/chat/{model}` (Claude, GPT, Gemini, Grok, Kimi, DeepSeek, Qwen, GLM), plus Exa web search, page contents and cited answers, image generation and text-to-speech, from $0.0015 USDC per request on Base or Solana via x402 `upto` or `exact`, with no account or API key. Example: `POST /v1/chat/completions {"model":"deepseek-v4.1-flash","max_tokens":16,"messages":[{"role":"user","content":"hi"}]}`. ([OpenAPI](https://ask.singitai.app/openapi.json)) ([llms.txt](https://ask.singitai.app/llms.txt)) ([Prices](https://ask.singitai.app/pricing.json))
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