{"id":"e3d3954c-6250-4399-b96c-0398aee12f88","shortId":"TdfNNs","kind":"x402","title":"AI-generated trivia question via Claude Sonnet 4.5, paid per call with USDC on Base.","tagline":"AI-generated trivia question via Claude Sonnet 4.5, paid per call with USDC on Base.","description":"This x402 endpoint generates a unique multiple-choice trivia question powered by Claude Sonnet 4.5. Each GET request returns a JSON object containing the question text, four answer options, the correct answer, an optional category and difficulty level, and a timestamp. The endpoint is part of the \"Proof of Intelligence Mint\" (POIM) project on Base, where correct answers allow users to mint 5000 POIC tokens.\n\nPricing is 1.25 USDC per question (paid via the x402 protocol on Base). According to the project site, $1.00 of each payment goes to a USDC liquidity pool accumulating toward a Uniswap V4 launch, and $0.25 covers gas and AI generation costs. The payment is made to address 0x32d831cd322EB5DF497A1A640175a874b5372BF8 using USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on the Base network.\n\nThe endpoint is discoverable and live, returning a standard x402 402 challenge when called without payment. There is no separate API documentation; the output schema is fully specified in the x402 challenge itself. The endpoint is designed to be called by both human-driven frontends and autonomous x402 agents.","tags":[],"capabilities":["trivia-question-generation","claude-sonnet-4.5","x402-payment","base-network","usdc-payment","multiple-choice","ai-generated-content","token-minting-trigger"],"categories":["llm","gaming","crypto"],"synonyms":["trivia API","quiz question generator","AI trivia","Claude trivia endpoint","proof of intelligence","POIC minting","x402 trivia","AI quiz API","multiple choice question API"],"warnings":["No dedicated API documentation exists (docs page returns 404)","No input parameters are documented; it is unclear if category or difficulty can be specified","Response example is inferred from the output schema, not from an actual API response","This endpoint is part of a token-minting game (POIC) which may have regulatory implications depending on jurisdiction"],"endpointUrl":"https://poim.io/api/x402/question","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x32d831cd322EB5DF497A1A640175a874b5372BF8","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://poim.io/api/x402/question","description":"Generate AI-powered trivia question using Claude Sonnet 4.5. Payment goes to LP pool.","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true},"output":{"type":"object","$schema":"http://json-schema.org/draft-07/schema#","required":["id","question","options","correctAnswer","timestamp"],"properties":{"id":{"type":"string"},"options":{"type":"array","items":{"type":"string"}},"category":{"type":"string"},"question":{"type":"string"},"timestamp":{"type":"number"},"difficulty":{"type":"string"},"correctAnswer":{"type":"string"}},"additionalProperties":false}},"maxAmountRequired":"1250000","maxTimeoutSeconds":300}]},"qualityScore":"0.720","qualityRationale":"The x402 challenge is live and includes a complete output schema with required fields. The project landing page provides clear pricing and flow details. However, there is no formal API documentation, no OpenAPI spec, and no input parameters are documented—the endpoint appears to be a simple parameterless GET. The response example is inferred from the output 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