Roundhouse

x402datasource.com

Pay-per-request data API for AI agents. No subscriptions, no API keys — each request is paid using the x402 protocol, settled on-chain. Real-world structured data on demand.

Searchofflineeip155:8453Exactvia cdp
https://x402datasource.com/api/v1/property/tx/harris/lookup
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$1.26
Verified settled volume
46 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-06-18 05:06Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x3B9Ce6236F3973aE3f5BE1b630c76E5eA1153aE9

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.

Accepts

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

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0x3B9C…53aE9. The signed payment is good for 5 minutes.

Paid to
0x3B9C…53aE9
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
50000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x3B9Ce6236F3973aE3f5BE1b630c76E5eA1153aE9",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "address": "123 MAIN ST HOUSTON"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "count": 1,
          "query": "123 MAIN ST HOUSTON",
          "results": [
            {
              "owner": "SMITH JOHN",
              "geo_id": "0571430000001",
              "values": {
                "land": 50000,
                "market": 425000,
                "assessed": 425000,
                "appraised": 425000,
                "improvement": 375000,
                "homestead_cap_savings": null
              },
              "address": {
                "zip": "77002",
                "city": "HOUSTON",
                "full": "123 MAIN ST",
                "street": "123 MAIN ST"
              },
              "property": {
                "land_sqft": 6000,
                "land_acres": 0.1377,
                "year_built": 2003,
                "price_per_sqft": 230,
                "improvement_sqft": 1850
              },
              "data_year": 2026,
              "exemptions": {
                "over_65": false,
                "homestead": false,
                "disabled_person": false,
                "disabled_veteran": false
              },
              "legal_description": "LOT 1 BLK A TEST SUB"
            }
          ],
          "resolved_address": "123 Main St, Houston, TX 77002"
        }
      }
    },
    "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": [
                "address"
              ],
              "properties": {
                "address": {
                  "type": "string",
                  "description": "Address to search for (e.g. \"123 MAIN ST HOUSTON\")."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "count": {
                  "type": "integer",
                  "description": "Number of results."
                },
                "query": {
                  "type": "string",
                  "description": "The search query used."
                },
                "results": {
                  "type": "array",
                  "description": "Matching property records."
                },
                "resolved_address": {
                  "type": "string",
                  "description": "The resolved full address."
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-06-18 05:06Z
Last indexed by Roundhouse
2026-07-17 12:00Z
Last enriched (probe, favicon, geo)
2026-09-21 15:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 0
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 x402datasource.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=x402datasource.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://x402datasource.com/api/v1/property/tx/harris/lookup, 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.