HTML Evidence Pack

Extract one supplied HTML document into machine-readable evidence and cross-check it against itself. Returns title, metadata, canonical, robots directive, JSON-LD, resolved links, tables, readable text and content hashes. Reports a canonical that disagrees with the URL served, an Open Graph title that disagrees with the document title, a noindex directive, and absent title, description or structured data. Scripts are not executed and nothing is fetched.

Tradingofflineeip155:8453Exactvia cdp
Html extractionMetadataStructured dataAgent toolingDeveloper tooling
Settlements · 30d
218↓ 56%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$25.30
Verified settled volume
255 settlements proven x402 by their on-chain EIP-3009 marker.
$0.140
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 2026-10-04 08:14Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x25e8245f07d5e4873987293dad666afbe56a9608

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.

0.14USDC≈ $0.14 USD
on Base · exact scheme

Pay 0.14 USDC on Base to 0x25e8…a9608. The signed payment is good for 1 minute.

USD Coin contract
0x8335…02913
Payment window
1 minute
As published
140000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
    "amount": "140000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "url": "https://example.test/widgets/widget-1",
          "html": "<!doctype html><html><head><title>Widget - Example</title><meta name=\"description\" content=\"A widget.\"><meta property=\"og:title\" content=\"Widget, now cheaper\"><link rel=\"canonical\" href=\"https://example.test/widgets/widget-1?ref=newsletter\"></head><body><h1>Widget</h1><p>One widget.</p><a href=\"/widgets/widget-2\">Widget 2</a><a href=\"https://partner.test/review\">A review</a><table><tr><th>sku</th><th>price</th></tr><tr><td>W-1</td><td>10.00</td></tr></table></body></html>"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "links": {
            "count": 2,
            "items": [
              {
                "href": "https://example.test/widgets/widget-2",
                "text": "Widget 2",
                "external": false,
                "resolved": "https://example.test/widgets/widget-2"
              },
              {
                "href": "https://partner.test/review",
                "text": "A review",
                "external": true,
                "resolved": "https://partner.test/review"
              }
            ],
            "external_count": 1
          },
          "title": "Widget - Example",
          "limits": {
            "maxPages": 50,
            "maxListed": 200,
            "maxCookies": 100,
            "maxHeaders": 200,
            "maxFindings": 500,
            "maxHtmlBytes": 262144,
            "maxSitemapUrls": 10000,
            "maxSitemapBytes": 1048576
          },
          "passed": false,
          "tables": {
            "count": 1,
            "items": [
              [
                [
                  "sku",
                  "price"
                ],
                [
                  "W-1",
                  "10.00"
                ]
              ]
            ]
          },
          "complete": true,
          "findings": [
            {
              "code": "CANONICAL_DISAGREES_WITH_URL",
              "detail": "The page declares https://example.test/widgets/widget-1?ref=newsletter as canonical and was supplied as https://example.test/widgets/widget-1, so a crawler will consolidate signals onto the other URL.",
              "canonical": "https://example.test/widgets/widget-1?ref=newsletter"
            },
            {
              "code": "STRUCTURED_DATA_ABSENT",
              "detail": "No JSON-LD block is present, so nothing machine-readable describes this page."
            },
            {
              "code": "OG_TITLE_DISAGREES_WITH_TITLE",
              "detail": "The Open Graph title and the document title differ, so a shared link will say something different from the page."
            }
          ],
          "markdown": "# Widget\nOne widget.Widget 2A review\nskuprice\nW-110.00",
          "metadata": {
            "og:title": "Widget, now cheaper",
            "description": "A widget."
          },
          "canonical": "https://example.test/widgets/widget-1?ref=newsletter",
          "request_id": "example-request",
          "service_id": "html_evidence_pack",
          "source_url": "https://example.test/widgets/widget-1",
          "assumptions": [
            "The caller supplies the HTML, so nothing is fetched and no robots.txt applies to this call. That is what makes an arbitrary site auditable without widening any egress registry.",
            "Relative links are resolved against the URL supplied, so a wrong URL produces wrong resolutions rather than silently relative ones.",
            "JavaScript is not executed, so anything rendered client-side is absent from this evidence."
          ],
          "fingerprint": {
            "html_bytes": 476,
            "html_sha256": "a8084a378b660d9e831868cb5f6d17cd8d54e16945849d47004490ef5e2b9418",
            "text_sha256": "b5d9a83e4bdfa31c76b8bab39cdaf5ad26b91d6cc1efd4b7d94fddecaa710a21",
            "text_characters": 54
          },
          "limitations": [
            "What the supplied markup declares. Whether a crawler agrees, and what the page looks like after scripting, are outside this.",
            "complete_evidence is true only when the whole document was parsed and every cross-check passed. It is not a quality score."
          ],
          "observed_at": "2026-10-02T00:00:00.000Z",
          "not_examined": [],
          "finding_count": 3,
          "service_version": "1.0.0",
          "structured_data": {
            "types": [],
            "blocks": [],
            "block_count": 0
          },
          "findings_by_code": {
            "STRUCTURED_DATA_ABSENT": 1,
            "CANONICAL_DISAGREES_WITH_URL": 1,
            "OG_TITLE_DISAGREES_WITH_TITLE": 1
          },
          "robots_directive": null,
          "complete_evidence": false
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "html",
                "url"
              ],
              "properties": {
                "url": {
                  "type": "string",
                  "maxLength": 2048
                },
                "html": {
                  "type": "string",
                  "maxLength": 262144
                },
                "include_markdown": {
                  "type": "boolean"
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-04 08:14Z
Last indexed by Roundhouse
2026-10-05 00:20Z
Last enriched (probe, favicon, geo)
2026-10-05 16:46Z
x402 version
2
Max timeout
60s
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 HTML Evidence Pack 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=HTML%20Evidence%20Pack'
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://api.zfinia.com/x402/v1/html-evidence-pack, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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