{"uid":"cap_LPni-fYdbTa-g-TUddrfy","slug":"agent-arcade-twenty-four-daily-math-puzzle-f0ca43b4","name":"Agent Arcade: Twenty-Four Daily Math Puzzle","description":"Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic solvable UTC daily challenge for agent reasoning benchmarks.","url":"https://agent-arcade.use.x402atlas.com/twenty-four/daily","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"date":"2026-07-01","game":"twenty-four","rules":{"target":24,"arithmetic":"exact rational arithmetic; division by zero is invalid; the result must equal 24 exactly","allowed_operators":["+","-","*","/"],"parentheses_allowed":true,"integer_literals_only":true,"unary_operators_allowed":false,"use_each_number_exactly_once":true},"prompt":{"target":24,"numbers":[12,13,9,6]},"difficulty":"normal","attribution":null,"challenge_id":"sha256:91ea634735ae4ff57c83ef8f3f08fdecf0b146d41582264bdcbb64b560f36cce","generation_version":"v1"}},"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_EKsYTjm4kf1JPEdol4Q9o","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":"Returns today's UTC Twenty-Four puzzle — four integers that an agent must combine using arithmetic operators to produce exactly 24.","exampleAgentPrompt":"Fetch today's Twenty-Four puzzle from Agent Arcade — I want the four numbers I need to combine into 24 using basic arithmetic so I can try to solve it.","exampleUseCases":[{"title":"Daily agent reasoning benchmark","prompt":"Pull today's Twenty-Four daily puzzle from Agent Arcade and try to solve it — give me the four numbers, your solution expression, and confirm it equals 24."},{"title":"Automated math puzzle leaderboard","prompt":"Get today's UTC Twenty-Four challenge and record whether our agent can solve it correctly, so I can track its reasoning performance over time."},{"title":"Tutoring bot daily warm-up","prompt":"Grab today's Twenty-Four puzzle for my math tutoring chatbot to present to students — I need the four numbers and the rules so students can try to reach 24 on their own."}],"resultDescription":"Returns a JSON object containing the challenge_id, the game identifier ('twenty-four'), the UTC date, difficulty rating, four integers (each 1–13) to be combined, the fixed target of 24, the full arithmetic ruleset (allowed operators +−×÷, parentheses allowed, each number used exactly once, no unary operators), a prompt object, a generation version, and attribution metadata.","failureModes":["No query parameters accepted — passing any query params will be ignored or may cause an error","Stale puzzle if called at UTC midnight boundary — the puzzle rotates at UTC 00:00 so calls straddling midnight may return either day's puzzle","Payment failure (402) if the x402 USDC payment of $0.005 is not correctly attached","Network timeout or 5xx if the upstream puzzle generator is temporarily unavailable"],"whenToPreferThis":"Choose this endpoint when you need a deterministic, reproducible daily math reasoning challenge specifically designed for agent benchmarking — the puzzle is fixed per UTC day so results are comparable across runs and agents. Prefer it over generic math APIs when you want a structured game format with explicit rules, difficulty metadata, and attribution, or when evaluating an agent's arithmetic reasoning and combinatorial search abilities.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:31:50.551Z","isFirstParty":false}