Cook County / Chicago Property Data (free tier, no wallet needed)
REMOTE · API.INGEST0R.COM · SCANNED SEP 20
Cook County / Chicago property by address or PIN: sales, permits, assessments, comps. 25 free/day.
Available components
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. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability65
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1355 tokens (~271/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the Cook County / Chicago Property Data (free tier, no wallet… MCP server?
Cook County / Chicago Property Data (free tier, no wallet… is a hosted endpoint at https://api.ingest0r.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · api.ingest0r.com
claude mcp add --transport http com-ingest0r-api-cook-county-property-data 'https://api.ingest0r.com/mcp'
{
"mcpServers": {
"com-ingest0r-api-cook-county-property-data": {
"url": "https://api.ingest0r.com/mcp"
}
}
} {
"servers": {
"com-ingest0r-api-cook-county-property-data": {
"type": "http",
"url": "https://api.ingest0r.com/mcp"
}
}
} [mcp_servers.com-ingest0r-api-cook-county-property-data] url = "https://api.ingest0r.com/mcp"
{
"$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 mcp add com-ingest0r-api-cook-county-property-data --url 'https://api.ingest0r.com/mcp' --transport streamable-http
mcp_servers:
com-ingest0r-api-cook-county-property-data:
url: "https://api.ingest0r.com/mcp" {
"McpServers": {
"com-ingest0r-api-cook-county-property-data": {
"Transport": "http",
"Url": "https://api.ingest0r.com/mcp"
}
}
} assistant mcp add com-ingest0r-api-cook-county-property-data -t streamable-http -u 'https://api.ingest0r.com/mcp'
{
"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.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 29 Aug 26 −1
- The server rewrote its instructions, which are the text every model session reads security
- Tool “find_chicago_comparable_sales” rewrote its description, which is the text the model reads security
- Tool “get_cook_county_parcel” rewrote its description, which is the text the model reads security
- Tool “get_cook_county_property_dossier” rewrote its description, which is the text the model reads security
- Tool “get_free_sample” rewrote its description, which is the text the model reads security
- Tool “search_chicago_property_by_address” rewrote its description, which is the text the model reads security
- Schema quality: 179 → 271 ▼ functional
- Tool “find_chicago_comparable_sales” changed its title: Chicago comparable sales / AVM (25 free a day) cosmetic
- Tool “get_cook_county_parcel” changed its title: Cook County parcel record (25 free a day) cosmetic
- Tool “get_cook_county_property_dossier” changed its title: Cook County property dossier (25 free a day) cosmetic
- Tool “get_free_sample” changed its title: Free sample of the Chicago / Cook County property data ($0) cosmetic
- Tool “search_chicago_property_by_address” changed its title: Chicago / Cook County address to parcel PIN (always free) cosmetic
- 26 Aug 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 24 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 20 Aug 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Tool “find_chicago_comparable_sales” rewrote its description, which is the text the model reads security
- Tool “get_cook_county_parcel” rewrote its description, which is the text the model reads security
- Tool “get_cook_county_property_dossier” rewrote its description, which is the text the model reads security
- Schema quality: 160 → 179 ▼ functional
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 7 Aug 26 0
- The server no longer declares the “experimental” capability functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Probed https://api.ingest0r.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=ingest0r.com | CN=WE1,O=Google Trust Services,C=US | 10 Aug 2026 | 8 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | e98118d4ba0160ce0e7da5a16c5a89ea |
| SANs: ingest0r.com, *.ingest0r.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of api.ingest0r.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| ingest0r.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| x-content-type-options | nosniff |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.ingest0r.com/mcp | Verified | 200 | |
| http (plaintext) | http://api.ingest0r.com/mcp | HTTPS enforced | 301 | https://api.ingest0r.com/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
find_chicago_comparable_sales Chicago comparable sales / AVM (25 free a day) ~211
FREE for your first 25 calls each day — no wallet, no signup, just call it ($0.10 per call via x402/USDC only after that daily allowance, which resets at 00:00 UTC). Recent arm's-length comparable sales (comps) in the same Cook County assessor neighborhood and property class as the given PIN, each with its distance in metres from the subject, plus an implied low/median/high price range — a derived, lightweight automated valuation (AVM) you won't get from a raw open-data query. Thin markets widen automatically and the response reports which matching rung was used. Comps are NOT normalized for building size or age.
| Name | Type | Req | Description |
|---|---|---|---|
| pin | string | yes | 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. |
No output schema declared.
No examples provided.
get_cook_county_parcel Cook County parcel record (25 free a day) ~221
FREE for your first 25 calls each day — no wallet, no signup, just call it ($0.01 per call via x402/USDC only after that daily allowance, which resets at 00:00 UTC). Cook County, IL parcel record for a 10- or 14-digit PIN. Returns: pin, prop_address, prop_city, prop_zip, class, township_name, nbhd_code, municipality, ward, police_district, census_tract_geoid, school_elementary_district, school_secondary_district, walk_score_cmap, airport_noise_dnl, lat, lon, tax_year. The cheap single-property lookup — use get_cook_county_property_dossier for sales, permits and assessments.
| Name | Type | Req | Description |
|---|---|---|---|
| pin | string | yes | 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. |
No output schema declared.
No examples provided.
get_cook_county_property_dossier Cook County property dossier (25 free a day) ~242
FREE for your first 25 calls each day — no wallet, no signup, just call it ($0.03 per call via x402/USDC only after that daily allowance, which resets at 00:00 UTC). Full Cook County / Chicago property dossier for a PIN: parcel basics, recorded sales & deed history, building permits, property-tax assessment history, and neighborhood / ward / school / walkability context — 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 cannot reproduce with raw open-data queries. Note assessment values are ASSESSED values (~10% of market for most residential classes), not market prices — see assessment_note in the response.
| Name | Type | Req | Description |
|---|---|---|---|
| pin | string | yes | 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. |
No output schema declared.
No examples provided.
get_free_sample Free sample of the Chicago / Cook County property data ($0) ~124
FREE ($0, unlimited, no payment, no wallet): a fixed, representative example of every response shape this server returns for Cook County / Chicago property data — address search, parcel, dossier (recorded sales, building permits, assessment history) and comparable sales. Call this FIRST to validate the data structure before anything else. For REAL verified data at $0, call get_cook_county_property_dossier with one of the always-free example PINs 09253060510000, 09253140190000, 09253050270000.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search_chicago_property_by_address Chicago / Cook County address to parcel PIN (always free) ~232
ALWAYS FREE, unlimited, no wallet and no signup. Resolve a Cook County / Chicago street address (full or partial) to its parcel PIN(s) — ranked candidates with address, city, ZIP, a match score and a match_quality flag. A trailing city/state/ZIP is fine ('1 E 113th St, Chicago, IL 60628'). CHECK match_quality: 'exact' is certain, 'likely' shares the house number, and 'weak' means NO candidate matched the house number — do not rely on a weak hit. 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. Coverage: Cook County, Illinois — Chicago plus 100+ suburbs including Evanston, Oak Park, Cicero and Skokie.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Full or partial Cook County / Chicago street address, e.g. '1 E 113th St'. Minimum 4 characters. |
No output schema declared.
No examples provided.
What is the Cook County / Chicago Property Data (free tier, no wallet… MCP server?
Cook County / Chicago Property Data (free tier, no wallet… is an MCP server listed in the public MCP registry as com.ingest0r.api/cook-county-property-data. Cook County / Chicago property by address or PIN: sales, permits, assessments, comps. 25 free/day. This page covers its hosted endpoint (https://api.ingest0r.com/mcp).
Is the Cook County / Chicago Property Data (free tier, no wallet… MCP server safe to use?
Cook County / Chicago Property Data (free tier, no wallet… scores 86 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Cook County / Chicago Property Data (free tier, no wallet… MCP server expose?
Cook County / Chicago Property Data (free tier, no wallet… exposes 5 tools: get_free_sample, search_chicago_property_by_address, get_cook_county_parcel, get_cook_county_property_dossier, find_chicago_comparable_sales. Their descriptions and schemas cost roughly 1,030 tokens of context every time the server is loaded.
Does the Cook County / Chicago Property Data (free tier, no wallet… MCP server require authentication?
No. We connected to Cook County / Chicago Property Data (free tier, no wallet… without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Cook County / Chicago Property Data (free tier, no wallet… MCP server still maintained?
Cook County / Chicago Property Data (free tier, no wallet… is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.