ScrapeCheck

XML tier (deterministic, no LLM): verifies a claimed value lives at a named path in a public XML document, by independent double re-fetch. Use it for feeds and sitemaps; for JSON use /verify-json, for HTML use /verify. Paths address elements and @attributes (urlset.url[0].loc). String-exact; ambiguous or volatile values return unverifiable, never a guess. First 100 checks per client are free: resend with header X-Use-Free-Allowance: yes and no payment to use them.

SearchLiveeip155:8453Exactvia cdp
VerificationXmlFeedsData-quality
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 28 snapshots so far.
$0.17
Verified settled volume
30 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0020
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.
2
Unique payers · 30d
Last called 2026-08-30 01:55Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x455F20eC147477CAFcd6D77C1604529f3c4Ff665

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.

0.002USDC≈ $0.002 USD
on Base · exact scheme

Pay 0.002 USDC on Base to 0x455F…Ff665. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
2000 smallest units
2000units
on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
0x3c49…c3359
Payment window
5 minutes
2000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
EPjFWd…TDt1v
Payment window
5 minutes
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x455F20eC147477CAFcd6D77C1604529f3c4Ff665",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x455F20eC147477CAFcd6D77C1604529f3c4Ff665",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
    },
    "payTo": "4HuSbgqgKkeUM5jEzAzLGpxtivCGda9eEtYc2Sp1fLpM",
    "amount": "2000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "url": "https://scrapecheck.fly.dev/sitemap.xml",
          "claim": {
            "urlset.url[0].loc": "https://scrapecheck.fly.dev/"
          }
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "engine": "web_field_v1/0.2.0+2ae28205cac4",
          "key_id": "k2",
          "reasons": [
            "claimed value found at path \"urlset.url[0].loc\" (matched element: url)"
          ],
          "verdict": "pass",
          "evidence": {
            "lens_votes": {},
            "refetched_at": "2026-08-28T00:00:00.000Z",
            "refetch_excerpt": "{\"urlset.url[0].loc\":\"https://scrapecheck.fly.dev/\"}",
            "second_fetch_at": "2026-08-28T00:00:01.000Z"
          },
          "signature": "ed25519:…",
          "check_type": "xml_field_v1",
          "confidence": 0.95,
          "verdict_id": "00000000-0000-0000-0000-000000000000",
          "source_hash": "sha256:…",
          "verifier_url": "https://scrapecheck.fly.dev"
        }
      }
    },
    "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": {
              "required": [
                "url",
                "claim"
              ],
              "properties": {
                "url": {
                  "type": "string",
                  "description": "public HTTPS URL"
                },
                "claim": {
                  "type": "object",
                  "description": "see the route description; there is no asked field - this tier adjudicates exactly what it accepts"
                }
              }
            },
            "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",
              "required": [
                "verdict_id",
                "verdict",
                "confidence",
                "reasons",
                "evidence",
                "check_type",
                "engine",
                "key_id",
                "verifier_url",
                "source_hash",
                "signature"
              ],
              "properties": {
                "engine": {
                  "type": "string",
                  "description": "Engine name and version digest that produced the verdict."
                },
                "key_id": {
                  "type": "string",
                  "description": "Identifier of the signing key; resolve against GET /pubkey."
                },
                "reasons": {
                  "type": "array",
                  "items": {
                    "type": "string"
                  },
                  "description": "The stated reasons for the verdict."
                },
                "verdict": {
                  "enum": [
                    "pass",
                    "fail",
                    "unverifiable"
                  ],
                  "type": "string",
                  "description": "One of pass, fail, unverifiable."
                },
                "evidence": {
                  "type": "object",
                  "properties": {
                    "lens_votes": {
                      "type": "object",
                      "properties": {
                        "is_real": {
                          "type": "boolean"
                        },
                        "is_current": {
                          "type": "boolean"
                        },
                        "does_answer": {
                          "type": "boolean"
                        }
                      },
                      "description": "Boolean votes is_real, is_current, does_answer from the judging lenses."
                    },
                    "refetched_at": {
                      "type": "string",
                      "description": "UTC timestamp of the engine's own fetch of the page."
                    },
                    "refetch_excerpt": {
                      "type": "string",
                      "description": "Excerpt of the re-fetched page content the verdict was judged against."
                    }
                  },
                  "description": "What the re-fetch observed."
                },
                "signature": {
                  "type": "string",
                  "description": "ed25519 signature over canonical sorted-key JSON of every field except signature."
                },
                "check_type": {
                  "type": "string",
                  "description": "The check contract used, e.g. web_field_v1."
                },
                "confidence": {
                  "type": "number",
                  "description": "The engine's confidence in the verdict, 0 to 1."
                },
                "verdict_id": {
                  "type": "string",
                  "description": "Unique identifier for this verdict; its issuance is confirmable at GET /verdicts/{verdict_id}."
                },
                "source_hash": {
                  "type": [
                    "string",
                    "null"
                  ],
                  "description": "sha256 of the normalized page text the verdict judged; null when no anchor text was obtained."
                },
                "verifier_url": {
                  "type": "string",
                  "description": "The issuing service's URL; display only, never a trust root."
                }
              }
            }
          }
        }
      }
    }
  },
  "errors": [
    {
      "body": {},
      "name": "Payment Required",
      "note": "the x402 v2 challenge is not in the body; it is base64-encoded JSON in the PAYMENT-REQUIRED response header",
      "when": "any request without valid payment, a free-allowance header, or a service key — including requests with malformed bodies: payment is checked before input validation",
      "status": 402
    },
    {
      "body": {
        "error": "invalid input contract",
        "details": [
          "url: Invalid url",
          "claim: Required",
          "asked: Required"
        ]
      },
      "name": "Bad Request",
      "note": "details lists one entry per failing field, in the form \"<field>: <problem>\"",
      "when": "payment or allowance has cleared but the body does not match the input contract",
      "status": 400
    },
    {
      "body": {
        "error": "rate limit exceeded — try again shortly"
      },
      "name": "Too Many Requests",
      "when": "requests exceed the per-minute rate limit, paid or not",
      "status": 429
    }
  ],
  "errorNote": "A page that cannot be verified is NOT an error: unverifiable (or fail on /verify-presence) is a signed 200 verdict. 4xx means the request never reached the engine."
}

Provenance

Seen in the source catalog
2026-08-30 01:55Z
Last indexed by Roundhouse
2026-09-24 14:50Z
Last enriched (probe, favicon, geo)
2026-09-13 03:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 404
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. 28 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 ScrapeCheck 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=ScrapeCheck'
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://scrapecheck.fly.dev/verify-xml, 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.