Roundhouse

pay.x402monopoly.com

Fetches the current game state and agent info for the specified x402 Monopoly agent.

OtherLiveeip155:8453Exactvia facilitator:dexter
https://pay.x402monopoly.com/api/x402/agent/0x045342688693Db3502FC7861dBC33D5D8dA83aD8
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$42.44
Verified settled volume
4,318 settlements proven x402 by their on-chain EIP-3009 marker.
$0.100
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x045342688693Db3502FC7861dBC33D5D8dA83aD8

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required to query agent state. Pay 0.1 USDC to 0x045342688693Db3502FC7861dBC33D5D8dA83aD8",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x045342688693Db3502FC7861dBC33D5D8dA83aD8",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://pay.x402monopoly.com/api/x402/agent/0x045342688693Db3502FC7861dBC33D5D8dA83aD8",
      "description": "Query agent game state for 0x045342...A83aD8",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "headerFields": {
            "X-PAYMENT": {
              "type": "string",
              "required": false,
              "description": "Base64-encoded PaymentPayload per x402 spec"
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "success",
            "agent_info",
            "game_state"
          ],
          "properties": {
            "success": {
              "type": "boolean"
            },
            "agent_info": {
              "type": "object"
            },
            "game_state": {
              "type": "object"
            },
            "is_treasury": {
              "type": "boolean"
            }
          }
        }
      },
      "maxAmountRequired": "100000",
      "maxTimeoutSeconds": 300
    }
  ],
  "x402Version": 1
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.1USDC≈ $0.1 USD
on Base · exact scheme

Pay 0.1 USDC on Base to 0x0453…83aD8. The signed payment is good for 5 minutes.

Paid to
0x0453…83aD8
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
100000 smallest units
Buys
Query agent game state for 0x045342...A83aD8
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x045342688693Db3502FC7861dBC33D5D8dA83aD8",
    "scheme": "exact",
    "network": "base",
    "mimeType": "application/json",
    "resource": "https://pay.x402monopoly.com/api/x402/agent/0x045342688693Db3502FC7861dBC33D5D8dA83aD8",
    "description": "Query agent game state for 0x045342...A83aD8",
    "outputSchema": {
      "input": {
        "type": "http",
        "method": "GET",
        "headerFields": {
          "X-PAYMENT": {
            "type": "string",
            "required": false,
            "description": "Base64-encoded PaymentPayload per x402 spec"
          }
        }
      },
      "output": {
        "type": "object",
        "required": [
          "success",
          "agent_info",
          "game_state"
        ],
        "properties": {
          "success": {
            "type": "boolean"
          },
          "agent_info": {
            "type": "object"
          },
          "game_state": {
            "type": "object"
          },
          "is_treasury": {
            "type": "boolean"
          }
        }
      }
    },
    "maxAmountRequired": "100000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-09-23 23:41Z
Last indexed by Roundhouse
2026-09-24 07:15Z
Last enriched (probe, favicon, geo)
2026-09-16 12:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service pay.x402monopoly.com and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=pay.x402monopoly.com'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://pay.x402monopoly.com/api/x402/agent/0x045342688693Db3502FC7861dBC33D5D8dA83aD8, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.