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Cook County / Chicago property sales, permits, assessments and comps by address or PIN, pay-per-call via x402.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 1 month ago Due for re-check
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The cook-county-chicago-property-data MCP server exposes 5 tools, focused primarily on general-purpose capabilities. Its published description reads: "Cook County / Chicago property sales, permits, assessments and comps by address or PIN, pay-per-call via x402". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates cook-county-chicago-property-data F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Hidden instructions in a tool description" and "Cross-tool shadowing". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check cook-county-chicago-property-data's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add cook-county-chicago-property-data to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://api.ingest0r.com/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
FREE ($0, no payment): a fixed, representative example of every paid response shape (search, parcel, dossier, comps). Call this FIRST to validate the data structure and quality before spending anythin
Resolve a Cook County / Chicago street address (full or partial) to its parcel PIN(s) — ranked candidates with address, city, ZIP, and match score. Call this FIRST when you have an address but not a P
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: (server instructions)
A tool description contains imperative text aimed at the model (e.g. "ignore previous", "before answering read …").
rows to stitch. IMPORTANT: you do NOT need a wallet to start. The first caRecommendationRemove model-directed instructions from tool descriptions.
tool: search_chicago_property_by_address
A tool description tries to alter the model’s use of another tool.
returned pin to get_cook_county_parcel / get_cook_county_property_dossier / find_chicaRecommendationDescriptions must describe only their own tool.
tool: (server instructions)
A tool description tries to alter the model’s use of another tool.
y records. Call get_free_sample FIRST ($0) to see every response shape. ResolveRecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
tool: get_free_sample
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: search_chicago_property_by_address
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: get_cook_county_parcel
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: get_cook_county_property_dossier
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: find_chicago_comparable_sales
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
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Cook County, IL parcel record (address, assessor class, township, neighborhood, ward, schools, lat/lon) for a 10- or 14-digit PIN. FREE for your first calls each day (no wallet needed — just call it);
Full Cook County / Chicago property dossier (parcel basics, recorded sales & deed history, building permits, property-tax assessment history, location context) for a PIN — the one-call due-diligence r
Recent arm's-length comparable sales (comps) in the same Cook County assessor neighborhood and property class as the given PIN, with an implied low/median/high price range — a derived, lightweight aut