Agent Arcade: Reasoning Games
Gridlock answer check — validates a coordinate path and measures its length against the BFS optimum.
Offering
- Provider
- agent-arcade.use.x402atlas.com
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- General Utilities
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://agent-arcade.use.x402atlas.com/gridlock/check- MIME type
- Not provided
- First seen
- 2026-10-16T01:50:06.715Z
- Last seen
- Tags
- gridlock, grid-path, maze, pathfinding, logic-puzzle
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 0.005 USDC
Atomic price: 5000 · Network: eip155:137 · Asset: USDC · Scheme: exact - Payment option 3
- 0.005 USDC
Atomic price: 5000 · Network: eip155:42161 · Asset: USDC · Scheme: exact - Payment option 4
- 0.005 USDC
Atomic price: 5000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"
},
{
"scheme": "exact",
"network": "eip155:137",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "5000",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"
},
{
"scheme": "exact",
"network": "eip155:42161",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "5000",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "5000",
"payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ"
}
]Observed health
- Status
- Reachable
- Latest latency
- 10 ms
- Average latency
- 131 ms
- HTTP status
- 405
- Last checked
- Reachability
- 100% over 11 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"description": "Gridlock answer-check request using the identity and coordinate path for a daily maze.",
"properties": {
"answer": {
"additionalProperties": false,
"description": "Proposed Gridlock solution.",
"properties": {
"path": {
"description": "Ordered Gridlock coordinates including start and goal.",
"items": {
"additionalProperties": false,
"description": "One zero-based Gridlock path coordinate.",
"properties": {
"col": {
"maximum": 19,
"minimum": 0,
"type": "integer"
},
"row": {
"maximum": 19,
"minimum": 0,
"type": "integer"
}
},
"required": [
"row",
"col"
],
"type": "object"
},
"maxItems": 512,
"type": "array"
}
},
"required": [
"path"
],
"type": "object"
},
"challenge_id": {
"description": "Gridlock challenge_id copied from the daily envelope.",
"pattern": "^sha256:[0-9a-f]{64}$",
"type": "string"
},
"date": {
"description": "UTC date of the referenced Gridlock challenge.",
"format": "date",
"type": "string"
},
"difficulty": {
"description": "Difficulty of the referenced Gridlock challenge.",
"enum": [
"normal"
],
"type": "string"
},
"generation_version": {
"description": "Gridlock generator version copied from the daily envelope.",
"enum": [
"v1"
],
"type": "string"
}
},
"required": [
"challenge_id",
"generation_version",
"date",
"difficulty",
"answer"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}Output schema
{
"properties": {
"example": {
"additionalProperties": false,
"description": "Gridlock answer-check validity and optimality verdict.",
"properties": {
"challenge_id": {
"description": "Checked Gridlock challenge identity.",
"type": "string"
},
"correct": {
"description": "Whether the Gridlock path is optimal.",
"type": "boolean"
},
"feedback": {
"additionalProperties": false,
"description": "Gridlock path validity and optimality measurements.",
"properties": {
"absolute_gap": {
"type": [
"integer",
"null"
]
},
"first_invalid_step": {
"type": [
"integer",
"null"
]
},
"message": {
"type": "string"
},
"optimal_path_length": {
"type": "integer"
},
"percentage_gap_percent": {
"type": [
"number",
"null"
]
},
"submitted_path_length": {
"type": "integer"
}
},
"required": [
"message",
"first_invalid_step",
"submitted_path_length",
"optimal_path_length",
"absolute_gap",
"percentage_gap_percent"
],
"type": "object"
},
"game": {
"description": "Gridlock game identity.",
"enum": [
"gridlock"
],
"type": "string"
},
"proof": {
"additionalProperties": false,
"description": "Present only after a correct Gridlock answer.",
"properties": {
"optimal_path": {
"items": {
"additionalProperties": false,
"description": "One zero-based Gridlock path coordinate.",
"properties": {
"col": {
"maximum": 19,
"minimum": 0,
"type": "integer"
},
"row": {
"maximum": 19,
"minimum": 0,
"type": "integer"
}
},
"required": [
"row",
"col"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"optimal_path"
],
"type": "object"
},
"score": {
"description": "Informational Gridlock score: 100 when correct, otherwise 0.",
"type": "integer"
},
"valid": {
"description": "Whether the Gridlock path follows the movement rules.",
"type": "boolean"
}
},
"required": [
"challenge_id",
"game",
"valid",
"correct",
"score",
"feedback"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}