{"uid":"cap_U2-jZTStTDyq1r1XWuYMR","slug":"agent-arcade-trivia-answer-checker-db6e59e5","name":"Agent Arcade: Trivia Answer Checker","description":"Trivia Daily answer check — validates one opaque choice ID and explains correct answers from the curated record.","url":"https://agent-arcade.use.x402atlas.com/trivia/check","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"date":{"type":"string","format":"date","description":"UTC date of the referenced Trivia Daily challenge."},"answer":{"type":"object","required":["choice_id"],"properties":{"choice_id":{"type":"string","pattern":"^choice_[0-9a-f]{16}$","maxLength":64,"description":"One opaque choice ID displayed by Trivia Daily."}},"description":"Proposed Trivia Daily choice.","additionalProperties":false},"difficulty":{"enum":["normal"],"type":"string","description":"Difficulty of the referenced Trivia Daily challenge."},"challenge_id":{"type":"string","pattern":"^sha256:[0-9a-f]{64}$","description":"Trivia Daily challenge_id copied from the daily envelope."},"generation_version":{"enum":["v1"],"type":"string","description":"Trivia Daily dataset-selection version copied from the daily envelope."}}},"responseSchema":{"type":"json","example":{"game":"trivia","proof":{"explanation":"QR is an abbreviation of Quick Response."},"score":100,"valid":true,"correct":true,"feedback":{"message":"selected choice is correct"},"challenge_id":"sha256:c9365eb870ba7310a4c32503c8b72ff3c5dfebc66ab8ded6b562a6bd8a395709"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_AN3ZJGl0Qmr__UqXYJU34","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates a trivia answer submission and returns a correctness verdict, score, and explanation proof","exampleAgentPrompt":"Check my trivia answer for challenge sha256:c9365eb870ba7310a4c32503c8b72ff3c5dfebc66ab8ded6b562a6bd8a395709 — I selected 'Quick Response' as the meaning of QR, and tell me if I got it right with an explanation.","exampleUseCases":[{"title":"AI agent trivia game scoring","prompt":"I just answered a trivia question about what QR stands for and selected 'Quick Response' for challenge sha256:c9365eb870ba7310a4c32503c8b72ff3c5dfebc66ab8ded6b562a6bd8a395709 — verify my answer and give me the score and an explanation."},{"title":"Trivia chatbot answer feedback","prompt":"My trivia bot needs to check if the user picked the right answer for challenge sha256:c9365eb870ba7310a4c32503c8b72ff3c5dfebc66ab8ded6b562a6bd8a395709 and return feedback with a proof of why it's correct or wrong."},{"title":"Automated reasoning benchmark validation","prompt":"Run a correctness check on challenge sha256:c9365eb870ba7310a4c32503c8b72ff3c5dfebc66ab8ded6b562a6bd8a395709 where the submitted choice was 'Quick Response', and return whether it's valid along with the proof explanation and score."}],"resultDescription":"Returns a JSON object with fields: game (always 'trivia'), valid (boolean), correct (boolean), score (integer), feedback.message (human-readable result), proof.explanation (reasoning for the correct answer), and challenge_id (SHA-256 hash identifying the challenge).","failureModes":["Invalid or unknown challenge_id returns an error or invalid:true response","Submitting an answer after the challenge window expires may return valid:false","Missing X-PAYMENT header returns HTTP 402 with payment challenge details","Malformed request body returns a 400 or validation error","Incorrect USDC payment amount or wrong chain may cause payment rejection"],"whenToPreferThis":"Choose this endpoint when an AI agent or game system needs to programmatically verify a trivia answer and receive a cryptographic proof of the result, score, and explanation — particularly within the Agent Arcade x402 pay-per-call ecosystem where on-chain micropayments are acceptable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:36:18.793Z","isFirstParty":false}