Cook County Parcel Sales: Recorded Sale Dates, Prices and Deed Types by PIN

cookcountyopendata/parcel-sales

The recorded sales of one Cook County, Illinois parcel from the Assessor's Parcel Sales dataset, by its 14-digit PIN, newest sale first: sale date, sale price, deed type, document number, the seller and buyer names as recorded, whether the sale covered several parcels, and the Assessor's sale-filter flags. Set how many sales to return (1 to 50, default 10). An empty list means no sale is recorded for the PIN. Cook County Assessor's Office data, passed through unmodified and served by Eden Engine; not an official Cook County product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

Cook County Assessor's Office (Cook County, Illinois)

Data from the Cook County Assessor's Office (Cook County, Illinois) via the Cook County open data portal (datacatalog.cookcountyil.gov), passed through unmodified. Served by Eden Engine; not an official Cook County product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "cookcountyopendata/parcel-sales" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "cookcountyopendata/parcel-sales" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "cookcountyopendata/parcel-sales", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "cookcountyopendata/parcel-sales", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 21, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "pin"
  ],
  "properties": {
    "pin": {
      "type": "string",
      "pattern": "^[0-9]{14}$",
      "description": "The parcel's 14-digit Parcel Index Number (PIN) with no dashes, zero-padded, for example 32213210090000."
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 50,
      "minimum": 1,
      "description": "How many sales to return, 1 to 50; defaults to 10."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "results"
  ],
  "properties": {
    "results": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "pin": {
            "type": "string",
            "description": "The 14-digit parcel index number."
          },
          "nbhd": {
            "type": "string"
          },
          "year": {
            "type": "string",
            "description": "Tax year of the sale, as text."
          },
          "class": {
            "type": "string"
          },
          "doc_no": {
            "type": "string",
            "description": "Recorded document number."
          },
          "row_id": {
            "type": "string"
          },
          "deed_type": {
            "type": "string"
          },
          "sale_date": {
            "type": "string",
            "description": "Sale date, local time with no UTC offset, for example 2023-01-12T00:00:00.000."
          },
          "buyer_name": {
            "type": "string",
            "description": "Buyer name as recorded; may be a person or a company."
          },
          "sale_price": {
            "type": "string",
            "description": "Sale price in dollars, as text."
          },
          "seller_name": {
            "type": "string",
            "description": "Seller name as recorded; may be a person or a company."
          },
          "is_multisale": {
            "type": "boolean",
            "description": "True when the sale covered several parcels."
          },
          "township_code": {
            "type": "string"
          },
          "mydec_deed_type": {
            "type": "string",
            "description": "Deed type as reported on the MyDec form."
          },
          "num_parcels_sale": {
            "type": "string"
          }
        },
        "additionalProperties": true
      },
      "description": "One object per row; every value is a string except where noted."
    }
  },
  "description": "The matching sales, newest sale first. Boolean flags are real booleans; every other value is a string.",
  "additionalProperties": true
}