Roundhouse AI

contextiq.trango-compute.com

Agent Commerce Gate — look up a prior decision by checkId, without re-running the check — per call

InfraLiveeip155:8453Exactvia cdp
https://contextiq.trango-compute.com/api/v1/policy-check/x402-v2/:id
Calls · 30d
6
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 snapshots so far.
$1.50
Verified settled volume
75 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
Listed price
As published in the catalog. Always read the live 402 before paying.
6
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-18 23:53Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x4eba5ea3cf0f3fc307099317e17e54390f7a4c58

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",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4eba5ea3cf0f3fc307099317e17e54390f7a4c58",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://contextiq.trango-compute.com/api/v1/policy-check/x402-v2/:id",
    "mimeType": "*/*",
    "description": "Agent Commerce Gate — look up a prior decision by checkId, without re-running the check — per call"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET"
        },
        "output": {
          "schema": {
            "type": "object",
            "properties": {
              "score": {
                "type": "number"
              },
              "agentId": {
                "type": "string"
              },
              "checkId": {
                "type": "string"
              },
              "network": {
                "type": "string"
              },
              "decision": {
                "type": "string",
                "description": "allow, warn, or block"
              },
              "endpoint": {
                "type": "string"
              },
              "maxScore": {
                "type": "number"
              },
              "createdAt": {
                "type": "string"
              }
            }
          },
          "example": {
            "score": 70,
            "agentId": "1",
            "checkId": "b3f1c2a4-...-a1b2c3d4e5f6",
            "network": "ethereum",
            "decision": "allow",
            "endpoint": "https://api.example.com/paid-resource",
            "maxScore": 100,
            "createdAt": "2026-09-10T12:00:00.000Z"
          }
        }
      },
      "schema": {
        "type": "object",
        "properties": {
          "score": {
            "type": "number"
          },
          "agentId": {
            "type": "string"
          },
          "checkId": {
            "type": "string"
          },
          "network": {
            "type": "string"
          },
          "decision": {
            "type": "string",
            "description": "allow, warn, or block"
          },
          "endpoint": {
            "type": "string"
          },
          "maxScore": {
            "type": "number"
          },
          "createdAt": {
            "type": "string"
          }
        }
      }
    }
  },
  "x402Version": 2
}

Accepts

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

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0x4eba…a4c58. The signed payment is good for 5 minutes.

Paid to
0x4eba…a4c58
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
20000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x4eba5ea3cf0f3fc307099317e17e54390f7a4c58",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "pathParams": {
          "id": "Unique identifier (UUID format)"
        }
      },
      "output": {
        "schema": {
          "type": "object",
          "properties": {
            "score": {
              "type": "number"
            },
            "agentId": {
              "type": "string"
            },
            "checkId": {
              "type": "string"
            },
            "network": {
              "type": "string"
            },
            "decision": {
              "type": "string",
              "description": "allow, warn, or block"
            },
            "endpoint": {
              "type": "string"
            },
            "maxScore": {
              "type": "number"
            },
            "createdAt": {
              "type": "string"
            }
          }
        },
        "example": {
          "score": 70,
          "agentId": "1",
          "checkId": "b3f1c2a4-...-a1b2c3d4e5f6",
          "network": "ethereum",
          "decision": "allow",
          "endpoint": "https://api.example.com/paid-resource",
          "maxScore": 100,
          "createdAt": "2026-09-10T12:00:00.000Z"
        }
      }
    },
    "schema": {
      "type": "object",
      "properties": {
        "score": {
          "type": "number"
        },
        "agentId": {
          "type": "string"
        },
        "checkId": {
          "type": "string"
        },
        "network": {
          "type": "string"
        },
        "decision": {
          "type": "string",
          "description": "allow, warn, or block"
        },
        "endpoint": {
          "type": "string"
        },
        "maxScore": {
          "type": "number"
        },
        "createdAt": {
          "type": "string"
        }
      }
    },
    "routeTemplate": "/api/v1/policy-check/x402-v2/:id"
  }
}

Provenance

Seen in the source catalog
2026-09-18 23:53Z
Last indexed by Roundhouse
2026-09-24 17:50Z
Last enriched (probe, favicon, geo)
2026-09-11 23:16Z
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 snapshots so far. 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 contextiq.trango-compute.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=contextiq.trango-compute.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://contextiq.trango-compute.com/api/v1/policy-check/x402-v2/:id, 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.