# Cook County Property Dossier by PIN

> Cook County Property Dossier by PIN is a paid API for AI agents from api.ingest0r.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Returns a comprehensive property dossier for a Cook County, Illinois parcel identified by its 14-digit PIN

## Facts

- Endpoint: GET https://api.ingest0r.com/v1/dossier/:pin
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cook-county-property-dossier-by-pin-202c4ce8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QacqDSIxazIk9oVlTHiG0

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cook-county-property-dossier-by-pin-202c4ce8
```

Example prompt: Pull up the full property dossier for Cook County PIN 14-21-101-017-0000 — I need ownership, assessment, and any recorded details on that parcel.

## When to prefer this

Use this endpoint when you already have a Cook County 14-digit PIN and need full parcel-level property details. If you only have a street address, use the /v1/search sibling endpoint first to resolve the PIN, then call this endpoint. Prefer this over generic property APIs when working specifically with Cook County or City of Chicago parcels, as it is purpose-built for that jurisdiction's data.

## Known failure modes

- Invalid or malformed PIN (not 14 digits) returns an error or empty result
- PIN not found in Cook County records returns 404 or empty dossier
- Payment failure via x402 protocol results in 402 Payment Required
- Rate limiting or upstream data source unavailability returns 5xx error
- PIN provided without dashes vs with dashes may differ — use consistent format

## Output

A structured property dossier containing parcel-level details for the given Cook County PIN, which may include ownership information, assessed values, property characteristics, tax history, and other records associated with that parcel.

## Request schema (JSON Schema)

```json
{
 "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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "pin"
     ],
     "properties": {
      "pin": {
       "type": "string",
       "description": "14-digit Cook County PIN (digits or dashed). Use /v1/search first if you only have a street address."
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "pin": {
       "type": "string"
      },
      "ward": {
       "type": "string"
      },
      "class": {
       "type": "string"
      },
      "permits": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "cost": {
          "type": "number"
         },
         "desc": {
          "type": "string"
         },
         "type": {
          "type": "string"
         },
         "issued": {
          "type": "string"
         }
        }
       }
      },
      "municipality": {
       "type": "string"
      },
      "prop_address": {
       "type": "string"
      },
      "sales_history": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "date": {
          "type": "string"
         },
         "price": {
          "type": "number"
         },
         "doc_no": {
          "type": "string"
         },
         "deed_type": {
          "type": "string"
         }
        }
       }
      },
      "assessment_history": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "year": {
          "type": "integer"
         },
         "board": {
          "type": "number"
         },
         "certified": {
          "type": "number"
         }
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cook-county-property-dossier-by-pin-202c4ce8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.ingest0r.com](https://www.zero.xyz/host/api.ingest0r.com/llms.txt)