# Cook County / Chicago Property Data (remote · api.ingest0r.com)

Cook County / Chicago property by address or PIN: sales, permits, assessments, comps. Pay via x402.

- Trust score: 75/100 (medium)
- Change this week: +7
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `api.ingest0r.com`: 75/100 (this document), [markdown](https://verifymcp.io/servers/com-ingest0r-api-cook-county-property-data/api.md), [page](https://verifymcp.io/servers/com-ingest0r-api-cook-county-property-data/api)

## Channel facts

- Endpoint: `https://api.ingest0r.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 801 tokens (~160/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http com-ingest0r-api-cook-county-property-data https://api.ingest0r.com/mcp
```

### Codex

```toml
[mcp_servers.com-ingest0r-api-cook-county-property-data]
url = "https://api.ingest0r.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-ingest0r-api-cook-county-property-data": {
      "type": "remote",
      "url": "https://api.ingest0r.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-ingest0r-api-cook-county-property-data --url https://api.ingest0r.com/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-ingest0r-api-cook-county-property-data:
    url: "https://api.ingest0r.com/mcp"
```

### Other

```json
{
  "mcpServers": {
    "com-ingest0r-api-cook-county-property-data": {
      "type": "http",
      "url": "https://api.ingest0r.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 74, +4)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 70, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-29 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-28 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 68, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 68)

First indexed and scored.

## MCP tools (5)

### `get_free_sample` (~51 tokens)

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 anything.

### `search_chicago_property_by_address` (~128 tokens)

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 PIN, then pass a returned
pin to get_cook_county_parcel / get_cook_county_property_dossier /
find_chicago_comparable_sales. FREE — no payment required.

Input parameters:

- `address` (string, required): Full or partial Cook County / Chicago street address, e.g. '1 E 113th St'. Minimum 4 characters.

### `get_cook_county_parcel` (~118 tokens)

Cook County, IL parcel record (address, assessor class, township,
neighborhood, ward, schools, lat/lon) for a 10- or 14-digit PIN.
Costs $0.01 per call (x402, USDC).

Input parameters:

- `pin` (string, required): 10- or 14-digit Cook County PIN (digits; dashes allowed, e.g. 14-08-120-017-0000). If you only have a street address, call search_chicago_property_by_address first.

### `get_cook_county_property_dossier` (~172 tokens)

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 record. Permits
are LINKED to the PIN here (the raw permit open-data has no PIN; links are
derived by address + geo match), so this is a finished record you can't
reproduce with raw open-data queries. Costs $0.03 per call (x402, USDC).

Input parameters:

- `pin` (string, required): 10- or 14-digit Cook County PIN (digits; dashes allowed, e.g. 14-08-120-017-0000). If you only have a street address, call search_chicago_property_by_address first.

### `find_chicago_comparable_sales` (~148 tokens)

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 automated valuation
you won't get from a raw open-data query. Costs $0.10 per call (x402,
USDC) — the highest-value route; try get_free_sample first.

Input parameters:

- `pin` (string, required): 10- or 14-digit Cook County PIN (digits; dashes allowed, e.g. 14-08-120-017-0000). If you only have a street address, call search_chicago_property_by_address first.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-ingest0r-api-cook-county-property-data/api#diagnostics

## Score history

- 2026-08-03: 75
- 2026-08-02: 74
- 2026-08-01: 74
- 2026-07-31: 74
- 2026-07-30: 70
- 2026-07-29: 70
- 2026-07-28: 69
- 2026-07-27: 68
- 2026-07-26: 68

## Links

- Remote endpoint: https://api.ingest0r.com/mcp
- Changelog RSS feed: https://verifymcp.io/servers/com-ingest0r-api-cook-county-property-data/api/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-ingest0r-api-cook-county-property-data/api/changelog.json
- HTML version of this page: https://verifymcp.io/servers/com-ingest0r-api-cook-county-property-data/api