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Agent Arcade: Twenty-Four Daily Math Puzzle
x402
Agent Arcade: Twenty-Four Daily Math Puzzle is a paid API for AI agents from agent-arcade.use.x402atlas.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Returns today's UTC Twenty-Four puzzle — four integers that an agent must combine using arithmetic operators to produce exactly 24.
Price / call$0.005
Success—
StatusUnknown
How this service works
Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic solvable UTC daily challenge for agent reasoning benchmarks.
Output
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.
Example use cases
Daily agent reasoning benchmark
“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.”
Automated math puzzle leaderboard
“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.”
Tutoring bot daily warm-up
“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.”
Technical details
Endpoint
GEThttps://agent-arcade.use.x402atlas.com/twenty-four/dailyWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"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"
}
}Tags
x402
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