hyperionxmota/cook-county-property-mcp

A hosted, **pay-per-call** Model Context Protocol (MCP) server for **Cook County, Illinois — including the City of Chicago** — property records: parcels, recorded sales & deed history, building permits, and property-tax assessment history, joined and normalized into one answer. Plus comparable sales (comps) and a lightweight automated valuation.
No signup, no API key — pay per call via the x402 protocol (USDC on Base or Solana).
What this adds over raw open data
This returns **finished, joined answers** — not raw rows you have to query and stitch. The county open data (Socrata) can't give you:
- **Building permits linked to a PIN.** The Chicago permits feed has **no PIN field** — the permit→parcel link is *derived here* (exact address match + nearest-parcel geo match). You can't reproduce this with a raw SoQL query.
- **A street address on a parcel.** Parcel Universe has **no address**; it's joined in from a separate dataset here.
- **Comparable-sales valuation.** Arm's-length filtering, same-neighborhood/class matching, and an implied low/median/high range — derived analysis, not a row fetch.
So one call returns a normalized property record; against raw open data you'd orchestrate multiple datasets and rebuild joins that don't exist upstream.
Connect
- **Remote MCP endpoint:** https://api.ingest0r.com/mcp (streamable-http — add it to any MCP client; nothing to install)
- **PulseMCP:** cook-county-property-data
- **Official MCP Registry:** com.ingest0r.api/cook-county-property-data
- **Website / HTTP API:** https://api.ingest0r.com
- **Free example response (no payment):** https://api.ingest0r.com/v1/sample
Tools
| Tool | Price | Description |
|------|-------|-------------|
| get_free_sample | **FREE** | Fixed example of every response shape — evaluate before paying. |
| search_chicago_property_by_address | **FREE** | Resolve a street address → parcel PIN(s). The no-PIN entry point. |
| get_cook_county_parcel | $0.01 | Single parcel record by 14-digit PIN. |
| get_cook_county_property_dossier | $0.03 | Full dossier: address, sales & deed history, permits, assessment history. |
| find_chicago_comparable_sales | $0.10 | Comparable sales + implied low/median/high valuation. |
The PIN tools return an HTTP **402** with machine-readable x402 payment terms; pay in USDC and retry. Search and the sample are free — and three real parcels are served **free on the paid routes** (live data you can verify against the county's own portals): 09253050270000 · 09253060510000 · 09253140190000.