Roundhouse

DopamineDesk AI Marketplace

Audit one public site or compare up to five domains across llms.txt, OpenAPI, robots, sitemap, x402 metadata, and the discovery surfaces autonomous buyers rely on.

SearchLiveeip155:8453Exactvia cdp
https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/x402_market_opportunity_report
x402Buyer demandCompetitor researchMarket opportunityPricing
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 22 snapshots so far.
$8.76
Verified settled volume
236 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-16 01:58Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x8647F7D7a1368a467Ad1FF757fBc2e7167973558

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": "0x8647F7D7a1368a467Ad1FF757fBc2e7167973558",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/x402_market_opportunity_report",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "message": "This route accepts the x402 v2 PAYMENT-SIGNATURE flow on Base Mainnet. The legacy transaction-hash flow remains available for existing clients.",
  "resource": {
    "url": "https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/x402_market_opportunity_report",
    "tags": [
      "buyer demand",
      "competitor research",
      "market opportunity",
      "pricing",
      "discovery"
    ],
    "iconUrl": "https://ai-data-marketplace-1042299154756.us-central1.run.app/favicon.svg",
    "mimeType": "application/json",
    "description": "Research one x402 product idea against live 402index opportunity gaps, 402index competitors, and Coinbase Bazaar discovery, then return saturation, pricing, competitors, and a build recommendation.",
    "serviceName": "Live x402 Buyer Demand and Competition Report"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "queryParams": {
            "query": "vendor risk"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "success": true,
            "decision": "crowded",
            "market_summary": {
              "discovered_competitors": 66,
              "healthy_402index_competitors": 15
            },
            "opportunity_score": 38
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "query"
                ],
                "properties": {
                  "query": {
                    "type": "string",
                    "description": "Product intent, category, or buyer query to research."
                  }
                },
                "additionalProperties": true
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "success",
                  "decision",
                  "opportunity_score",
                  "market_summary"
                ],
                "properties": {
                  "success": {
                    "type": "boolean"
                  },
                  "decision": {
                    "type": "string"
                  },
                  "market_summary": {
                    "type": "object",
                    "required": [
                      "discovered_competitors",
                      "healthy_402index_competitors"
                    ],
                    "properties": {
                      "discovered_competitors": {
                        "type": "integer"
                      },
                      "healthy_402index_competitors": {
                        "type": "integer"
                      }
                    },
                    "additionalProperties": true
                  },
                  "opportunity_score": {
                    "type": "integer"
                  }
                },
                "additionalProperties": true
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2,
  "x402_invoice": {
    "amount": "0.01",
    "currency": "USDC",
    "payment_id": "e28b8b05-5eba-41f5-b80b-02578aa4a123",
    "description": "One request to /api/v1/x402_market_opportunity_report",
    "submit_headers": [
      "x-402-payment-tx",
      "x-402-payment-id"
    ],
    "accepted_networks": [
      {
        "asset": "USDC",
        "network": "base",
        "chain_id": 8453,
        "asset_contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "destination_address": "0x8647F7D7a1368a467Ad1FF757fBc2e7167973558"
      }
    ],
    "expires_in_seconds": 900
  },
  "marketplace_metadata": {
    "source": "402index opportunity and service APIs plus Coinbase x402 Bazaar discovery",
    "billable": true,
    "data_mode": "live_source",
    "availability": "operational"
  }
}

Accepts

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

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x8647…73558. The signed payment is good for 5 minutes.

Paid to
0x8647…73558
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x8647F7D7a1368a467Ad1FF757fBc2e7167973558",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "query": "vendor risk"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "success": true,
          "decision": "crowded",
          "market_summary": {
            "discovered_competitors": 66,
            "healthy_402index_competitors": 15
          },
          "opportunity_score": 38
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "query"
              ],
              "properties": {
                "query": {
                  "type": "string",
                  "description": "Product intent, category, or buyer query to research."
                }
              },
              "additionalProperties": true
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "success",
                "decision",
                "opportunity_score",
                "market_summary"
              ],
              "properties": {
                "success": {
                  "type": "boolean"
                },
                "decision": {
                  "type": "string"
                },
                "market_summary": {
                  "type": "object",
                  "required": [
                    "discovered_competitors",
                    "healthy_402index_competitors"
                  ],
                  "properties": {
                    "discovered_competitors": {
                      "type": "integer"
                    },
                    "healthy_402index_competitors": {
                      "type": "integer"
                    }
                  },
                  "additionalProperties": true
                },
                "opportunity_score": {
                  "type": "integer"
                }
              },
              "additionalProperties": true
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-16 01:58Z
Last indexed by Roundhouse
2026-09-15 01:50Z
Last enriched (probe, favicon, geo)
2026-09-10 06:46Z
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. 22 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 DopamineDesk AI Marketplace 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=DopamineDesk%20AI%20Marketplace'
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://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/x402_market_opportunity_report, 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.