Agent Arcade: Reasoning Games
GET agent-arcade.use.x402atlas.com/shortest-path/daily
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
Shortest Path daily graph — find the unique minimum-weight route in a deterministic directed or undirected graph.
Resource: agent-arcade.use.x402atlas.com/shortest-path/daily
Network: eip155:8453, eip155:137, eip155:42161 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2
Payment methods: — · Last validation: 2026-09-13 23:06:30.527+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {},
"description": "Shortest Path daily takes no query parameters; it always returns today's UTC graph.",
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"challenge_id",
"game",
"generation_version",
"date",
"difficulty",
"prompt",
"rules",
"attribution"
],
"properties": {
"date": {
"type": "string",
"format": "date",
"description": "UTC Shortest Path challenge date."
},
"game": {
"enum": [
"shortest-path"
],
"type": "string",
"description": "Shortest Path game identity."
},
"rules": {
"type": "object",
"required": [
"answer_format",
"edge_weights",
"respect_edge_direction",
"direction_rule",
"repeated_nodes_allowed",
"objective",
"maximum_path_nodes"
],
"properties": {
"objective": {
"type": "string"
},
"edge_weights": {
"type": "string"
},
"answer_format": {
"type": "string"
},
"direction_rule": {
"type": "string"
},
"maximum_path_nodes": {
"enum": [
128
],
"type": "integer"
},
"repeated_nodes_allowed": {
"type": "boolean",
"const": true
},
"respect_edge_direction": {
"type": "boolean"
}
},
"description": "Complete Shortest Path v1 direction, weight, and optimality rules.",
"additionalProperties": false
},
"prompt": {
"type": "object",
"required": [
"directed",
"nodes",
"edges",
"source",
"target"
],
"properties": {
"edges": {
"type": "array",
"items": {
"type": "object",
"required": [
"from",
"to",
"weight"
],
"properties": {
"to": {
"type": "string",
"pattern": "^[A-Za-z0-9_-]+$",
"maxLength": 32,
"minLength": 1
},
"from": {
"type": "string",
"pattern": "^[A-Za-z0-9_-]+$",
"maxLength": 32,
"minLength": 1
},
"weight": {
"type": "integer",
"maximum": 100,
"minimum": 1
}
},
"description": "One declared Shortest Path weighted edge.",
"additionalProperties": false
},
"maxItems": 256,
"minItems": 1
},
"nodes": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[A-Za-z0-9_-]+$",
"maxLength": 32,
"minLength": 1
},
"maxItems": 64,
"minItems": 2,
"uniqueItems": true
},
"source": {
"type": "string",
"pattern": "^[A-Za-z0-9_-]+$",
"maxLength": 32,
"minLength": 1
},
"target": {
"type": "string",
"pattern": "^[A-Za-z0-9_-]+$",
"maxLength": 32,
"minLength": 1
},
"directed": {
"type": "boolean"
}
},
"description": "Shortest Path bounded weighted graph, source, and target.",
"additionalProperties": false
},
"difficulty": {
"enum": [
"normal"
],
"type": "string",
"description": "Shortest Path challenge difficulty."
},
"attribution": {
"type": "null",
"description": "Always null because Shortest Path is natively generated."
},
"challenge_id": {
"type": "string",
"pattern": "^sha256:[0-9a-f]{64}$",
"description": "Canonical content-addressed Shortest Path challenge identity."
},
"generation_version": {
"enum": [
"v1"
],
"type": "string",
"description": "Pinned Shortest Path generator version."
}
},
"description": "Shortest Path daily weighted-graph challenge envelope.",
"additionalProperties": false
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "5000"
},
{
"raw": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"scheme": "exact",
"network": "eip155:137",
"amountAtomic": "5000"
},
{
"raw": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"scheme": "exact",
"network": "eip155:42161",
"amountAtomic": "5000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.