{"id":"c69b29b0-758d-4272-b72a-ce97a44bb24e","shortId":"rCKnut","kind":"x402","title":"Submit trivia answers via x402 on Base to mint POIC tokens when correct.","tagline":"Submit trivia answers via x402 on Base to mint POIC tokens when correct.","description":"Proof of Intelligence Mint is an x402-powered endpoint on Base that accepts trivia answers and mints POIC tokens to the caller's wallet upon a correct response. The endpoint requires a POST with a question ID, answer string, and wallet address. Payment is 1000 units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base, described as a minimal fee for x402scan visibility. The broader game flow costs 1.25 USDC per question: $1.00 goes to a liquidity pool accumulating toward a Uniswap V4 launch, and $0.25 covers gas and AI question-generation fees.\n\nTrivia questions are generated by Claude Sonnet 4.5 as multiple-choice (4 options). A correct answer triggers an on-chain mint of 5000 POIC tokens directly to the submitted wallet address. The response includes a boolean correctness flag, a message, and optional transaction hashes (token mint and USDC). After 100,000 successful mints the accumulated USDC LP pool auto-launches on Uniswap V4. As of the crawl, 225 of 100,000 mints have been completed with 1.13M POIC in circulation out of a 500M total supply.\n\nThe project also advertises an \"Intelligence Miner Agent\" on x402scan that automates answering with claimed 100% accuracy, paying the standard fee per question and depositing rewards to a configured wallet.","tags":[],"capabilities":["x402-payment","trivia-answer-verification","erc20-token-minting","base-network","usdc-payment","on-chain-reward","ai-generated-questions"],"categories":["blockchain","gaming","tokens"],"synonyms":["proof of intelligence","POIC token","trivia mint","x402 trivia","base token minting","intelligence mining","cognitive trivia game"],"warnings":["No formal API documentation or OpenAPI spec available","The mechanism to obtain a valid questionId before submitting an answer is not documented in crawled material","The x402 challenge maxAmountRequired (1000) does not obviously match the stated 1.25 USDC cost described on the site—unit interpretation unclear","Project is early-stage with only 225/100,000 mints completed"],"endpointUrl":"https://proof-of-intelligence-mint-web.vercel.app/API/x402/answer","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://proof-of-intelligence-mint-web.vercel.app/API/x402/answer","description":"Submit answer to trivia question and mint POIC tokens if correct. Minimal payment for x402scan visibility.","outputSchema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"answer":{"type":"string"},"questionId":{"type":"string"},"walletAddress":{"type":"string"}},"discoverable":true},"output":{"type":"object","$schema":"http://json-schema.org/draft-07/schema#","required":["correct","message"],"properties":{"error":{"type":"string"},"txHash":{"type":"string"},"correct":{"type":"boolean"},"message":{"type":"string"},"usdcTxHash":{"type":"string"}},"additionalProperties":false}},"maxAmountRequired":"1000","maxTimeoutSeconds":300}]},"qualityScore":"0.650","qualityRationale":"The endpoint is live with a valid 402 challenge and a well-defined input/output schema. The landing page provides good context on game mechanics and pricing. However, there is no formal OpenAPI spec, no dedicated docs page, and the exact flow for obtaining a questionId is not documented in the crawl 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'000':171,192 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':77 '1.00':97 '1.13':198 '1.25':93 '100':170,191,224 '1000':72 '225':189 '4':131 '4.5':126 '5000':143 '500m':206 'POIC token' 'accept':40 'accumul':103,175 'accuraci':225 'address':69,151 'advertis':212 'agent':216 'ai':114 'ai-generated-questions' 'also':211 'answer':3,16,42,65,135,221 'asset':76 'auto':180 'auto-launch':179 'autom':220 'base':7,20,38,79 'base token minting' 'base-network' 'boolean':156 'broader':89 'caller':49 'chain':140 'choic':130 'circul':202 'claim':223 'claud':124 'cognitive trivia game' 'complet':196 'configur':237 'correct':13,26,54,134,157 'cost':92 'cover':111 'crawl':188 'deposit':233 'describ':80 'direct':146 'endpoint':36,57 'erc20-token-minting' 'fee':84,118,229 'flag':158 'flow':91 'game':90 'gas':112 'generat':117,122 'goe':98 'hash':164 'id':64 'includ':154 'intellig':29,214 'intelligence mining' 'launch':108,181 'liquid':101 'lp':177 'm':199 'messag':160 'miner':215 'minim':83 'mint':9,22,30,44,141,166,173,193 'multipl':129 'multiple-choic':128 'on-chain':138 'on-chain-reward' 'option':132,162 'pay':226 'payment':70 'per':95,230 'poic':10,23,45,144,200 'pool':102,178 'post':60 'power':35 'project':210 'proof':27 'proof of intelligence' 'question':63,96,116,120,231 'question-gener':115 'requir':58 'respons':55,153 'reward':234 'sonnet':125 'standard':228 'string':66 'submit':1,14,149 'success':172 'suppli':208 'token':11,24,46,145,165 'total':207 'toward':104 'transact':163 'trigger':136 'trivia':2,15,41,119 'trivia mint' 'trivia-answer-verification' 'uniswap':106,183 'unit':73 'upon':52 'usdc':75,94,168,176 'usdc-payment' 'v4':107,184 'via':4,17 'visibl':87 'wallet':51,68,150,238 'x402':5,18,34 'x402 trivia' 'x402-payment' 'x402-powered':33 'x402scan':86,218","prices":[{"id":"4d1e3b37-8048-462c-bb99-64b11723f545","listingId":"c69b29b0-758d-4272-b72a-ce97a44bb24e","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"1000","chain":"base","payTo":"0x32d831cd322EB5DF497A1A640175a874b5372BF8","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x32d831cd322EB5DF497A1A640175a874b5372BF8","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://proof-of-intelligence-mint-web.vercel.app/API/x402/answer","description":"Submit answer to trivia question and mint POIC tokens if correct. Minimal payment for x402scan visibility.","outputSchema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"answer":{"type":"string"},"questionId":{"type":"string"},"walletAddress":{"type":"string"}},"discoverable":true},"output":{"type":"object","$schema":"http://json-schema.org/draft-07/schema#","required":["correct","message"],"properties":{"error":{"type":"string"},"txHash":{"type":"string"},"correct":{"type":"boolean"},"message":{"type":"string"},"usdcTxHash":{"type":"string"}},"additionalProperties":false}},"maxAmountRequired":"1000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:31:26.276Z"}],"sources":[{"listingId":"c69b29b0-758d-4272-b72a-ce97a44bb24e","source":"x402_bazaar","sourceId":"https://proof-of-intelligence-mint-web.vercel.app/API/x402/answer","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:31:26.276Z","lastSeenAt":"2026-04-23T00:30:51.322Z"}],"details":{"listingId":"c69b29b0-758d-4272-b72a-ce97a44bb24e","quickStartSnippet":"curl -X POST https://proof-of-intelligence-mint-web.vercel.app/API/x402/answer \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -d '{\"questionId\": \"abc123\", \"answer\": \"B\", \"walletAddress\": \"0xYourWallet\"}'","exampleRequest":{"answer":"B","questionId":"abc123","walletAddress":"0x1234567890abcdef1234567890abcdef12345678"},"exampleResponse":{"txHash":"0xabc123def456...","correct":true,"message":"Correct! 5000 POIC tokens minted to your wallet.","usdcTxHash":"0x789ghi012jkl..."},"schema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"answer":{"type":"string"},"questionId":{"type":"string"},"walletAddress":{"type":"string"}},"discoverable":true},"output":{"type":"object","$schema":"http://json-schema.org/draft-07/schema#","required":["correct","message"],"properties":{"error":{"type":"string"},"txHash":{"type":"string"},"correct":{"type":"boolean"},"message":{"type":"string"},"usdcTxHash":{"type":"string"}},"additionalProperties":false}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Each question costs 1.25 USDC via x402: $1.00 builds the LP pool, $0.25 covers gas and AI generation fees","source_url":"https://proof-of-intelligence-mint-web.vercel.app"},{"claim":"Correct answer mints 5000 POIC tokens to the caller's wallet","source_url":"https://proof-of-intelligence-mint-web.vercel.app"},{"claim":"Questions are generated by Claude Sonnet 4.5 with 4 multiple-choice options","source_url":"https://proof-of-intelligence-mint-web.vercel.app"},{"claim":"225 of 100,000 mints completed; 1.13M POIC circulating out of 500M total supply","source_url":"https://proof-of-intelligence-mint-web.vercel.app"},{"claim":"After 100k mints the LP pool auto-launches on Uniswap V4","source_url":"https://proof-of-intelligence-mint-web.vercel.app"},{"claim":"x402 challenge requires USDC asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base with maxAmountRequired 1000","source_url":"https://proof-of-intelligence-mint-web.vercel.app/API/x402/answer"}],"useCases":["Autonomous agents answering trivia to accumulate POIC tokens","Gamified token distribution via knowledge verification","Demonstrating x402 payment-gated API interactions on Base","Building bots that earn on-chain rewards by solving AI-generated questions"],"bestFor":["Developers experimenting with x402 payment protocol on Base","Agents or bots that can programmatically answer trivia","Users seeking gamified token minting with on-chain rewards"],"notFor":["Production financial applications requiring guaranteed returns","Users without USDC on Base network","Applications needing deterministic non-trivia computation"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:09.017Z"},"updatedAt":"2026-04-23T00:30:51.322Z"}}