PII Shape Audit

Report personal-data shapes in structured logs, by field and class and never by value. A payment card is confirmed by the Luhn check and an account number by its own mod-97 checksum, so a match is a plausible real value rather than any digit run, which keeps an order number from being reported as a card. A date of birth needs a field named for one as well as a date. Each match reports its field, how many lines carry it and how many distinct values there are.

TradingLiveeip155:8453Exactvia cdp
Personal dataLoggingData hygieneObservabilityDeveloper tooling
Settlements · 30d
219↓ 38%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$25.35
Verified settled volume
256 settlements proven x402 by their on-chain EIP-3009 marker.
$0.180
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 08:33Z
—
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.

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": "0x25e8245f07d5e4873987293dad666afbe56a9608",
      "amount": "180000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.zfinia.com/x402/v1/pii-shape-audit",
    "tags": [
      "personal data",
      "logging",
      "data hygiene",
      "observability",
      "developer tooling"
    ],
    "mimeType": "application/json",
    "description": "Report personal-data shapes in structured logs, by field and class and never by value. A payment card is confirmed by the Luhn check and an account number by its own mod-97 checksum, so a match is a plausible real value rather than any digit run, which keeps an order number from being reported as a card. A date of birth needs a field named for one as well as a date. Each match reports its field, how many lines carry it and how many distinct values there are.",
    "serviceName": "PII Shape Audit"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "logs": "{\"event\":\"signup\",\"user\":{\"email\":\"ada@example.test\",\"ip\":\"203.0.113.9\"},\"order_ref\":\"ORD-100045\"}\n{\"event\":\"payment\",\"card\":\"4111111111111111\",\"amount_cents\":1250,\"customer\":{\"dob\":\"1979-03-12\"}}\n{\"event\":\"payout\",\"iban\":\"GB82WEST12345698765432\",\"phone\":\"+61 2 9876 5432\"}\n{\"event\":\"signup\",\"user\":{\"email\":\"grace@example.test\",\"ip\":\"198.51.100.4\"},\"order_ref\":\"ORD-100046\"}\n",
            "allow_fields": [
              "user.ip"
            ]
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "clean": false,
            "fields": [
              {
                "field": "user.email",
                "lines": 2,
                "shape": "EMAIL_ADDRESS",
                "distinct_values": 2
              },
              {
                "field": "card",
                "lines": 1,
                "shape": "PAYMENT_CARD_NUMBER",
                "distinct_values": 1
              },
              {
                "field": "customer.dob",
                "lines": 1,
                "shape": "DATE_OF_BIRTH_SHAPED",
                "distinct_values": 1
              }
            ],
            "limits": {
              "maxLines": 20000,
              "maxSpans": 10000,
              "maxFields": 500,
              "maxSamples": 20000,
              "maxFindings": 500,
              "maxJsonBytes": 2097152
            },
            "passed": false,
            "complete": false,
            "findings": [
              {
                "code": "EMAIL_ADDRESS",
                "field": "user.email",
                "shape": "EMAIL_ADDRESS",
                "detail": "user.email holds a local part, an at sign and a dotted domain on 2 of 4 line(s), with 2 distinct value(s). No value is reported."
              },
              {
                "code": "PAYMENT_CARD_NUMBER",
                "field": "card",
                "shape": "PAYMENT_CARD_NUMBER",
                "detail": "card holds a 12 to 19 digit run that passes the Luhn check, so it is a plausible card number rather than any digit run on 1 of 4 line(s), with 1 distinct value(s). No value is reported."
              },
              {
                "code": "DATE_OF_BIRTH_SHAPED",
                "field": "customer.dob",
                "shape": "DATE_OF_BIRTH_SHAPED",
                "detail": "customer.dob holds a complete date in a plausible birth range, in a field named for one on 1 of 4 line(s), with 1 distinct value(s). No value is reported."
              }
            ],
            "line_count": 4,
            "request_id": "example-request",
            "service_id": "pii_shape_audit",
            "assumptions": [
              "No value is ever returned. A match is reported as its field, its class, how many lines carry it and how many distinct values there are, because a response that echoed personal data would be the proble...",
              "A card number is checked by the Luhn algorithm and an account number by its own mod-97 checksum, so a match is a plausible real value rather than any run of digits. That is what keeps an order number ...",
              "A date of birth is only a date until a field name says otherwise, so that class needs the field name as well as the value. The classes looked for are published in every response."
            ],
            "limitations": [
              "The lines supplied. clean means no recognised shape was found, which is not a statement that the logs hold no personal data: a name, an address, a free-text note or an encoded value is not found here.",
              "Not a compliance determination. Whether a field is lawful to log, and under which basis, is outside this entirely."
            ],
            "match_count": 6,
            "observed_at": "2026-10-02T00:00:00.000Z",
            "not_examined": [
              "FIELD_ALLOWED: user.ip is in the allow list, so a match there was not reported."
            ],
            "finding_count": 5,
            "shape_classes": [
              {
                "code": "EMAIL_ADDRESS",
                "description": "a local part, an at sign and a dotted domain"
              },
              {
                "code": "PAYMENT_CARD_NUMBER",
                "description": "a 12 to 19 digit run that passes the Luhn check, so it is a plausible card number rather than any digit run"
              },
              {
                "code": "IBAN",
                "description": "an account number whose own mod-97 checksum verifies"
              }
            ],
            "service_version": "1.0.0",
            "findings_by_code": {
              "IBAN": 1,
              "EMAIL_ADDRESS": 1,
              "PAYMENT_CARD_NUMBER": 1,
              "PHONE_NUMBER_SHAPED": 1,
              "DATE_OF_BIRTH_SHAPED": 1
            },
            "unreadable_line_count": 0
          }
        }
      },
      "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": [
                  "logs"
                ],
                "properties": {
                  "logs": {
                    "type": "string",
                    "maxLength": 2097152
                  },
                  "allow_fields": {
                    "type": "array",
                    "items": {
                      "type": "string",
                      "maxLength": 256
                    },
                    "maxItems": 500,
                    "minItems": 1
                  }
                },
                "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"
              }
            }
          }
        }
      }
    }
  },
  "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.

0.18USDC≈ $0.18 USD
on Base · exact scheme

Pay 0.18 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
180000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
    "amount": "180000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "logs": "{\"event\":\"signup\",\"user\":{\"email\":\"ada@example.test\",\"ip\":\"203.0.113.9\"},\"order_ref\":\"ORD-100045\"}\n{\"event\":\"payment\",\"card\":\"4111111111111111\",\"amount_cents\":1250,\"customer\":{\"dob\":\"1979-03-12\"}}\n{\"event\":\"payout\",\"iban\":\"GB82WEST12345698765432\",\"phone\":\"+61 2 9876 5432\"}\n{\"event\":\"signup\",\"user\":{\"email\":\"grace@example.test\",\"ip\":\"198.51.100.4\"},\"order_ref\":\"ORD-100046\"}\n",
          "allow_fields": [
            "user.ip"
          ]
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "clean": false,
          "fields": [
            {
              "field": "user.email",
              "lines": 2,
              "shape": "EMAIL_ADDRESS",
              "distinct_values": 2
            },
            {
              "field": "card",
              "lines": 1,
              "shape": "PAYMENT_CARD_NUMBER",
              "distinct_values": 1
            },
            {
              "field": "customer.dob",
              "lines": 1,
              "shape": "DATE_OF_BIRTH_SHAPED",
              "distinct_values": 1
            }
          ],
          "limits": {
            "maxLines": 20000,
            "maxSpans": 10000,
            "maxFields": 500,
            "maxSamples": 20000,
            "maxFindings": 500,
            "maxJsonBytes": 2097152
          },
          "passed": false,
          "complete": false,
          "findings": [
            {
              "code": "EMAIL_ADDRESS",
              "field": "user.email",
              "shape": "EMAIL_ADDRESS",
              "detail": "user.email holds a local part, an at sign and a dotted domain on 2 of 4 line(s), with 2 distinct value(s). No value is reported."
            },
            {
              "code": "PAYMENT_CARD_NUMBER",
              "field": "card",
              "shape": "PAYMENT_CARD_NUMBER",
              "detail": "card holds a 12 to 19 digit run that passes the Luhn check, so it is a plausible card number rather than any digit run on 1 of 4 line(s), with 1 distinct value(s). No value is reported."
            },
            {
              "code": "DATE_OF_BIRTH_SHAPED",
              "field": "customer.dob",
              "shape": "DATE_OF_BIRTH_SHAPED",
              "detail": "customer.dob holds a complete date in a plausible birth range, in a field named for one on 1 of 4 line(s), with 1 distinct value(s). No value is reported."
            }
          ],
          "line_count": 4,
          "request_id": "example-request",
          "service_id": "pii_shape_audit",
          "assumptions": [
            "No value is ever returned. A match is reported as its field, its class, how many lines carry it and how many distinct values there are, because a response that echoed personal data would be the proble...",
            "A card number is checked by the Luhn algorithm and an account number by its own mod-97 checksum, so a match is a plausible real value rather than any run of digits. That is what keeps an order number ...",
            "A date of birth is only a date until a field name says otherwise, so that class needs the field name as well as the value. The classes looked for are published in every response."
          ],
          "limitations": [
            "The lines supplied. clean means no recognised shape was found, which is not a statement that the logs hold no personal data: a name, an address, a free-text note or an encoded value is not found here.",
            "Not a compliance determination. Whether a field is lawful to log, and under which basis, is outside this entirely."
          ],
          "match_count": 6,
          "observed_at": "2026-10-02T00:00:00.000Z",
          "not_examined": [
            "FIELD_ALLOWED: user.ip is in the allow list, so a match there was not reported."
          ],
          "finding_count": 5,
          "shape_classes": [
            {
              "code": "EMAIL_ADDRESS",
              "description": "a local part, an at sign and a dotted domain"
            },
            {
              "code": "PAYMENT_CARD_NUMBER",
              "description": "a 12 to 19 digit run that passes the Luhn check, so it is a plausible card number rather than any digit run"
            },
            {
              "code": "IBAN",
              "description": "an account number whose own mod-97 checksum verifies"
            }
          ],
          "service_version": "1.0.0",
          "findings_by_code": {
            "IBAN": 1,
            "EMAIL_ADDRESS": 1,
            "PAYMENT_CARD_NUMBER": 1,
            "PHONE_NUMBER_SHAPED": 1,
            "DATE_OF_BIRTH_SHAPED": 1
          },
          "unreadable_line_count": 0
        }
      }
    },
    "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": [
                "logs"
              ],
              "properties": {
                "logs": {
                  "type": "string",
                  "maxLength": 2097152
                },
                "allow_fields": {
                  "type": "array",
                  "items": {
                    "type": "string",
                    "maxLength": 256
                  },
                  "maxItems": 500,
                  "minItems": 1
                }
              },
              "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 08:33Z
Last indexed by Roundhouse
2026-10-05 00:20Z
Last enriched (probe, favicon, geo)
2026-10-05 17:45Z
x402 version
2
Max timeout
60s
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

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 PII Shape Audit 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=PII%20Shape%20Audit'
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/pii-shape-audit, 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.