Cook County / Chicago Property Data
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| search_chicago_property_by_addressA | Resolve a Cook County / Chicago street address to its parcel PIN(s). The no-PIN entry point: when you have a street address but not a 14-digit PIN,
call this FIRST, then pass a returned |
| get_cook_county_parcelA | Look up a single Cook County / Chicago parcel by PIN. Returns the parcel record: street address, city, ZIP, assessor property class, township, neighborhood code, ward/municipality, latitude/longitude, and tax year. The cheap single-property lookup; use get_cook_county_property_dossier when you also need sales, permits, and assessment history. Paid: $0.01 per call via x402. Source: Cook County Assessor, refreshed nightly. |
| get_cook_county_property_dossierA | Full property dossier for a Cook County / Chicago parcel in one call. Returns parcel basics PLUS recorded sales & deed history, building permits, and property-tax assessment history, joined and normalized into one record — the one-call due-diligence answer. Permits are LINKED to the PIN here (the raw permit open-data has no PIN; links are derived by address + geo match) — a join you can't reproduce with raw open-data queries. Use for valuation, underwriting, title and lien research prep, and lead enrichment. Paid: $0.03 per call via x402. Public records only; no owner or occupant personal data. |
| find_chicago_comparable_salesA | Comparable sales (comps) and a lightweight valuation for a Cook County / Chicago property. Returns recent arm's-length sales in the same assessor neighborhood and property class as the subject PIN (last ~18 months), plus an implied low/median/high price range. Non-arm's-length and multi-parcel deeds are filtered out — a derived valuation you won't get from a raw open-data query. Use for valuation, investment screening, and underwriting. Paid: $0.10 per call via x402. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 4 tools
Each tool has a clearly distinct purpose: address resolution, basic parcel lookup, full property dossier, and comparable sales/valuation. No overlap in functionality, and the descriptions explicitly guide usage order.
All tool names follow a consistent verb_noun pattern using snake_case. The verbs (find, get, search) accurately describe the operation, and the objects are specific and descriptive.
4 tools is an appropriate scope for a property data API. It covers the essential workflows (address resolution, parcel lookup, full dossier, and valuation) without unnecessary bloat.
The tool set provides a complete workflow for accessing Cook County property data: address-to-PIN resolution, individual parcel details, a comprehensive dossier with sales/permits/assessments, and comparable sales analysis. No obvious gaps for a read-only data service.