Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic sol
Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic solvable UTC daily challenge for agent reasoning benchmarks.
5000 (raw units)
price
11
calls / 30d
6
unique payers
2026-09-16
updated
Provider
agent-arcade.use.x402atlas.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:137",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "5000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:42161",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "5000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"category": "games",
"info": {
"input": {
"method": "GET",
"type": "http"
},
"output": {
"example": {
"attribution": null,
"challenge_id": "sha256:91ea634735ae4ff57c83ef8f3f08fdecf0b146d41582264bdcbb64b560f36cce",
"date": "2026-07-01",
"difficulty": "normal",
"game": "twenty-four",
"generation_version": "v1",
"prompt": {
"numbers": [
12,
13,
9,
6
],
"target": 24
},
"rules": {
"allowed_operators": [
"+",
"-",
"*",
"/"
],
"arithmetic": "exact rational arithmetic; division by zero is invalid; the result must equal 24 exactly",
"integer_literals_only": true,
"parentheses_allowed": true,
"target": 24,
"unary_operators_allowed": false,
"use_each_number_exactly_once": true
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"description": "Twenty-Four daily takes no query parameters; it always returns today's UTC puzzle.",
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"description": "Twenty-Four daily challenge envelope.",
"properties": {
"attribution": {
"description": "Always null because Twenty-Four is natively generated.",
"type": "null"
},
"challenge_id": {
"description": "Canonical content-addressed Twenty-Four challenge identity.",
"pattern": "^sha256:[0-9a-f]{64}$",
"type": "string"
},
"date": {
"description": "UTC challenge date",
"format": "date",
"type": "string"
},
"difficulty": {
"description": "Twenty-Four challenge difficulty.",
"enum": [
"normal"
],
"type": "string"
},
"game": {
"description": "Twenty-Four game identity.",
"enum": [
"twenty-four"
],
"type": "string"
},
"generation_version": {
"description": "Pinned Twenty-Four generator version.",
"enum": [
"v1"
],
"type": "string"
},
"prompt": {
"additionalProperties": false,
"description": "The Twenty-Four puzzle: combine the four numbers into exactly the target",
"properties": {
"numbers": {
"description": "The four integers, each to be used exactly once.",
"items": {
"maximum": 13,
"minimum": 1,
"type": "integer"
},
"maxItems": 4,
"minItems": 4,
"type": "array"
},
"target": {
"description": "The exact value the expression must reach.",
"enum": [
24
],
"type": "integer"
}
},
"required": [
"numbers",
"target"
],
"type": "object"
},
"rules": {
"additionalProperties": false,
"description": "Complete Twenty-Four v1 expression rules.",
"properties": {
"allowed_operators": {
"items": {
"enum": [
"+",
"-",
"*",
"/"
],
"type": "string"
},
"maxItems": 4,
"minItems": 4,
"type": "array",
"uniqueItems": true
},
"arithmetic": {
"type": "string"
},
"integer_literals_only": {
"const": true,
"type": "boolean"
},
"parentheses_allowed": {
"const": true,
"type": "boolean"
},
"target": {
"enum": [
24
],
"type": "integer"
},
"unary_operators_allowed": {
"const": false,
"type": "boolean"
},
"use_each_number_exactly_once": {
"const": true,
"type": "boolean"
}
},
"required": [
"target",
"use_each_number_exactly_once",
"allowed_operators",
"parentheses_allowed",
"integer_literals_only",
"unary_operators_allowed",
"arithmetic"
],
"type": "object"
}
},
"required": [
"challenge_id",
"game",
"generation_version",
"date",
"difficulty",
"prompt",
"rules",
"attribution"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"tags": [
"twenty-four",
"24-game",
"math-puzzle",
"arithmetic",
"reasoning",
"agent-benchmark",
"daily-challenge"
]
}
}Use it
curl
curl "https://agent-arcade.use.x402atlas.com/twenty-four/daily" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://agent-arcade.use.x402atlas.com/twenty-four/daily");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://agent-arcade.use.x402atlas.com/twenty-four/daily")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/2217.json, and this resource appears in /discovery/resources and /discovery/search.