cook-county-property-data

Cook County / Chicago, Illinois **property records** for AI agents: resolve a street address to a parcel PIN (**free**), then fetch parcel records, a full **property dossier** (recorded sales & deed history, building permits, property-tax assessment history), or **comparable sales** with an implied valuation range. These are joined, derived answers the raw county open data can't return — permits are linked to PINs here (the city permit feed has no PIN field), addresses are joined to parcels, and comps are arm's-length filtered. ~1.9M parcels, refreshed nightly. Public records only — no owner or occupant personal data. **Tools:** `get_free_sample` ($0) · `search_chicago_property_by_address` (free) · `get_cook_county_parcel` ($0.01) · `get_cook_county_property_dossier` ($0.03) · `find_chicago_comparable_sales` ($0.10) Paid tools use [x402](https://x402.org) (USDC on Base or Solana) — no signup, no API key. Try the free sample and the [free live example parcels](https://api.ingest0r.com/pricing) before paying. Remote endpoint: `https://api.ingest0r.com/mcp` (streamable-http, nothing to install). Use cases: real-estate due diligence, automated valuation/comps, title research prep, lead enrichment.

First seen 2 Oct 2026. Evidence as of 5 Oct 2026.