---
schema: "interfacedelta-service-md/1"
target_key: "sha256:259d1d6fdb28f1206d4960c9b7065a16b9780bbd29b096506bf9b4d8be1e0386"
origin: "https://paywallcompass.com"
protocols: ["mcp"]
observed_at: "2026-11-12T18:17:58.635Z"
generated_at: "2026-11-13T02:25:10.487Z"
record_url: "https://interfacedelta.com/atlas/sha256:259d1d6fdb28f1206d4960c9b7065a16b9780bbd29b096506bf9b4d8be1e0386"
record_api: "https://interfacedelta.com/api/v1/record/services/sha256:259d1d6fdb28f1206d4960c9b7065a16b9780bbd29b096506bf9b4d8be1e0386"
source: "InterfaceDelta atlas"
license_note: "Use of this record is governed by https://interfacedelta.com/terms."
---

# Service record: https://paywallcompass.com

## Identity
- Origin: https://paywallcompass.com
- Endpoints: https://paywallcompass.com/mcp
- Protocols: mcp
- Registry names: com.paywallcompass/site
- First retained observation: 2026-11-12T18:17:58.635Z
- Latest observation: 2026-11-12T18:17:58.635Z

## Tools
- Tool 1: dataset\_columns (mcp); inputs: none shown; inputs omitted: 0; annotations: {}
- Tool 2: dataset\_compare (mcp); inputs: column, values; inputs omitted: 0; annotations: {}
- Tool 3: dataset\_provenance (mcp); inputs: none shown; inputs omitted: 0; annotations: {}
- Tool 4: dataset\_row (mcp); inputs: column, value; inputs omitted: 0; annotations: {}
- Tool 5: dataset\_search (mcp); inputs: limit, query; inputs omitted: 0; annotations: {}
- Tool 6: dataset\_stats (mcp); inputs: column; inputs omitted: 0; annotations: {}
- Tool 7: dataset\_top (mcp); inputs: ascending, column, limit; inputs omitted: 0; annotations: {}
- Tool 8: enquiry\_describe (mcp); inputs: none shown; inputs omitted: 0; annotations: {}
- Tool 9: enquiry\_fields (mcp); inputs: none shown; inputs omitted: 0; annotations: {}
- Tool 10: submit\_enquiry (mcp); inputs: answers, confirmation, consent; inputs omitted: 0; annotations: {}
Tools omitted: 0.

## Effect readings (AI)
- Tool 1 (dataset\_columns): ◇ AI reading; state: counted; reads (confidence 0.83); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 2 (dataset\_compare): ◇ AI reading; state: counted; reads (confidence 0.86); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 2 purpose: ◇ AI reading; Returns dataset rows whose given column matches any of two to ten listed values, in the order provided, for side-by-side comparisons.; lens: tool-purpose-v1; model: not recorded.
- Tool 3 (dataset\_provenance): ◇ AI reading; state: counted; reads (confidence 0.8); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 3 purpose: ◇ AI reading; Returns attribution details for the PaywallCompass dataset: its origin, computation date, licence and citation.; lens: tool-purpose-v1; model: not recorded.
- Tool 4 (dataset\_row): ◇ AI reading; state: counted; reads (confidence 0.88); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 4 purpose: ◇ AI reading; Returns dataset rows from PaywallCompass whose named column matches a given value, ignoring letter case.; lens: tool-purpose-v1; model: not recorded.
- Tool 5 (dataset\_search): ◇ AI reading; state: counted; reads (confidence 0.92); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 5 purpose: ◇ AI reading; Returns up to 50 rows from the PaywallCompass dataset whose cells match a case-insensitive text query.; lens: tool-purpose-v1; model: not recorded.
- Tool 6 purpose: ◇ AI reading; Summarizes count, minimum, maximum, mean, median and total for one numeric column in the PaywallCompass dataset.; lens: tool-purpose-v1; model: not recorded.
- Tool 7 (dataset\_top): ◇ AI reading; state: counted; reads (confidence 0.92); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 8 (enquiry\_describe): ◇ AI reading; state: counted; none (confidence 0.87); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 8 purpose: ◇ AI reading; Returns details of an enquiry: it is free, buys nothing, promises no quote, and lists recipients, consent text and confirmation.; lens: tool-purpose-v1; model: not recorded.
- Tool 9 (enquiry\_fields): ◇ AI reading; state: counted; reads (confidence 0.86); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 9 purpose: ◇ AI reading; Lists the form fields of an enquiry, with each field's key, label, type, required flag, help text and options.; lens: tool-purpose-v1; model: not recorded.
- Tool 10 purpose: ◇ AI reading; Creates a PaywallCompass enquiry after you confirm a summary and consent; the team sees it only after an emailed link is clicked.; lens: tool-purpose-v1; model: not recorded.

## Change history
No changes recorded in the retained history.

## Payment rails
- Protocols observed: none.
- HTTP 402 seen in retained observations: false.

## Not covered
- We don't call tools.
- We don't rate or certify.
- We don't publish prices.
- We cover only what was observed.

## Evidence
- Identity: observed / declared; observation time: 2026-11-12T18:17:58.635Z.
- Tools: declared; observation time: 2026-11-12T18:17:58.635Z.
- Effect readings (AI): AI reading; observation time: 2026-11-12T18:17:58.635Z.
- Change history: observed; observation time: 2026-11-12T18:17:58.635Z; change observation times: none.
- Payment rails: observed; observation time: 2026-11-12T18:17:58.635Z.

```json
{
  "schema": "interfacedelta-service-md/1",
  "target_key": "sha256:259d1d6fdb28f1206d4960c9b7065a16b9780bbd29b096506bf9b4d8be1e0386",
  "origin": "https://paywallcompass.com",
  "protocols": [
    "mcp"
  ],
  "observed_at": "2026-11-12T18:17:58.635Z",
  "generated_at": "2026-11-13T02:25:10.487Z",
  "record_url": "https://interfacedelta.com/atlas/sha256:259d1d6fdb28f1206d4960c9b7065a16b9780bbd29b096506bf9b4d8be1e0386",
  "record_api": "https://interfacedelta.com/api/v1/record/services/sha256:259d1d6fdb28f1206d4960c9b7065a16b9780bbd29b096506bf9b4d8be1e0386",
  "source": "InterfaceDelta atlas",
  "license_note": "Use of this record is governed by https://interfacedelta.com/terms.",
  "identity": {
    "origin": "https://paywallcompass.com",
    "endpoints": [
      "https://paywallcompass.com/mcp"
    ],
    "protocols": [
      "mcp"
    ],
    "registry_names": [
      "com.paywallcompass/site"
    ],
    "first_retained_observation": "2026-11-12T18:17:58.635Z",
    "latest_observation": "2026-11-12T18:17:58.635Z"
  },
  "tools": [
    {
      "name": "dataset_columns",
      "protocol": "mcp",
      "inputs": [],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.83
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "dataset_compare",
      "protocol": "mcp",
      "inputs": [
        "column",
        "values"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.86
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      },
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Returns dataset rows whose given column matches any of two to ten listed values, in the order provided, for side-by-side comparisons.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "dataset_provenance",
      "protocol": "mcp",
      "inputs": [],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.8
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      },
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Returns attribution details for the PaywallCompass dataset: its origin, computation date, licence and citation.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "dataset_row",
      "protocol": "mcp",
      "inputs": [
        "column",
        "value"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.88
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      },
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Returns dataset rows from PaywallCompass whose named column matches a given value, ignoring letter case.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "dataset_search",
      "protocol": "mcp",
      "inputs": [
        "limit",
        "query"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.92
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      },
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Returns up to 50 rows from the PaywallCompass dataset whose cells match a case-insensitive text query.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "dataset_stats",
      "protocol": "mcp",
      "inputs": [
        "column"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": null,
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Summarizes count, minimum, maximum, mean, median and total for one numeric column in the PaywallCompass dataset.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "dataset_top",
      "protocol": "mcp",
      "inputs": [
        "ascending",
        "column",
        "limit"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.92
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "enquiry_describe",
      "protocol": "mcp",
      "inputs": [],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "none",
            "confidence": 0.87
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      },
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Returns details of an enquiry: it is free, buys nothing, promises no quote, and lists recipients, consent text and confirmation.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "enquiry_fields",
      "protocol": "mcp",
      "inputs": [],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.86
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      },
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Lists the form fields of an enquiry, with each field's key, label, type, required flag, help text and options.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "submit_enquiry",
      "protocol": "mcp",
      "inputs": [
        "answers",
        "confirmation",
        "consent"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": null,
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Creates a PaywallCompass enquiry after you confirm a summary and consent; the team sees it only after an emailed link is clicked.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    }
  ],
  "tools_omitted": 0,
  "tools_state": "recorded",
  "changes": [],
  "payment_rails": {
    "protocols": [],
    "http_402_seen": false
  },
  "not_covered": [
    "We don't call tools.",
    "We don't rate or certify.",
    "We don't publish prices.",
    "We cover only what was observed."
  ],
  "evidence": [
    {
      "section": "Identity",
      "classes": [
        "observed",
        "declared"
      ],
      "observed_at": "2026-11-12T18:17:58.635Z"
    },
    {
      "section": "Tools",
      "classes": [
        "declared"
      ],
      "observed_at": "2026-11-12T18:17:58.635Z"
    },
    {
      "section": "Effect readings (AI)",
      "classes": [
        "AI reading"
      ],
      "observed_at": "2026-11-12T18:17:58.635Z"
    },
    {
      "section": "Change history",
      "classes": [
        "observed"
      ],
      "observed_at": "2026-11-12T18:17:58.635Z",
      "observation_times": []
    },
    {
      "section": "Payment rails",
      "classes": [
        "observed"
      ],
      "observed_at": "2026-11-12T18:17:58.635Z"
    }
  ]
}
```