# NYC Property Facts (remote · nycpropertyfacts.com)

Public records for any NYC property by address or BBL: permits, violations, sales, owners.

- Trust score: 73/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `nycpropertyfacts.com`: 73/100 (this document), [markdown](https://verifymcp.io/servers/jueluddinsf-nyc-property-facts/nycpropertyfacts.md), [page](https://verifymcp.io/servers/jueluddinsf-nyc-property-facts/nycpropertyfacts)

## Channel facts

- Endpoint: `https://nycpropertyfacts.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-11-05.

- **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. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.
  - 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**: 64/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1120 tokens (~224/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**: 13/100
  - Stability observed for 4 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 97/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 91% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the NYC Property Facts MCP server?

NYC Property Facts is a hosted endpoint at https://nycpropertyfacts.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.

### Claude

```bash
claude mcp add --transport http jueluddinsf-nyc-property-facts 'https://nycpropertyfacts.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "jueluddinsf-nyc-property-facts": {
      "url": "https://nycpropertyfacts.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "jueluddinsf-nyc-property-facts": {
      "type": "http",
      "url": "https://nycpropertyfacts.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.jueluddinsf-nyc-property-facts]
url = "https://nycpropertyfacts.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "jueluddinsf-nyc-property-facts": {
      "type": "remote",
      "url": "https://nycpropertyfacts.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add jueluddinsf-nyc-property-facts --url 'https://nycpropertyfacts.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  jueluddinsf-nyc-property-facts:
    url: "https://nycpropertyfacts.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "jueluddinsf-nyc-property-facts": {
      "Transport": "http",
      "Url": "https://nycpropertyfacts.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add jueluddinsf-nyc-property-facts -t streamable-http -u 'https://nycpropertyfacts.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "jueluddinsf-nyc-property-facts": {
      "type": "http",
      "url": "https://nycpropertyfacts.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.

### 2026-11-04 (score 73, +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.

### 2026-11-02 (score 72, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “get_property” rewrote its description, which is the text the model reads
- [security] Tool “get_sales_history” rewrote its description, which is the text the model reads
- [security] Tool “list_open_issues” rewrote its description, which is the text the model reads
- [security] Tool “lookup_property” rewrote its description, which is the text the model reads
- [security] Tool “search_properties” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 149 → 224
- [functional improvement] Tool coverage: 71% → 91%
- [functional improvement] Stability: unverified → 0.03
- [functional] Schema quality: good → excellent
- [functional] Server version: 0.2.0 → 1.0.0
- [cosmetic] “get_sales_history” added an optional parameter “bin”
- [cosmetic] “get_sales_history” added an optional parameter “borough”
- [cosmetic] “get_sales_history” added an optional parameter “zip”
- [cosmetic] “list_open_issues” added an optional parameter “bin”
- [cosmetic] “list_open_issues” added an optional parameter “borough”
- [cosmetic] “list_open_issues” added an optional parameter “zip”
- [cosmetic] “get_property” reworded the description of “bbl”
- [cosmetic] “get_property” reworded the description of “bin”
- [cosmetic] “get_sales_history” reworded the description of “bbl”
- [cosmetic] “get_sales_history” reworded the description of “limit”
- [cosmetic] “list_open_issues” reworded the description of “bbl”
- [cosmetic] “list_open_issues” reworded the description of “limit”
- [cosmetic] “lookup_property” reworded the description of “zip”
- [cosmetic] “search_properties” reworded the description of “house_number”
- [cosmetic] “search_properties” reworded the description of “street”
- [cosmetic] “search_properties” reworded the description of “zip”

### 2026-11-01 (score 71)

First indexed and scored.

## MCP tools (5)

### `lookup_property` (~184 tokens)

Look up a NYC property by address

Resolve a free-text NYC address to its tax lot (BBL) and return the property facts: summary, owner of record, building, assessment, last priced deed and open-item counts. Returns the best match with a 0-1 confidence, a plain-English confidence_explanation, a machine-readable match_type, the HTML/Markdown/JSON URLs and up to 4 alternatives. Requires "address". Use get_property for a known BBL/BIN.

Input parameters:

- `address` (string, required): NYC street address, e.g. "98 Grattan St, Brooklyn". Units (Apt 3B), borough and ZIP are optional; a 10-digit BBL or 7-digit BIN also works.
- `borough` (string): Optional: Manhattan, Bronx, Brooklyn, Queens or Staten Island
- `zip` (string): Optional 5-digit ZIP, sent as text

### `get_property` (~146 tokens)

Get a NYC property by BBL or BIN

Return the full fact sheet for a tax lot by 10-digit BBL (borough-block-lot, e.g. 3030090016) or by 7-digit DOB building number (BIN). Requires "bbl" or "bin" (if both are sent, bbl is used).

Input parameters:

- `bbl` (string): 10-digit BBL (borough-block-lot), e.g. "3030090016". Send it as text. Required unless "bin" is given.
- `bin` (string): 7-digit DOB building number (BIN), e.g. "3070696". Send it as text. Required unless "bbl" is given.

### `list_open_issues` (~238 tokens)

List open violations, open DOB jobs and unpaid tickets

List every open item for a property: DOB jobs with a permit issued but no sign-off, active DOB and ECB violations, open HPD violations, and OATH tickets with an unpaid balance or a pending hearing. Each record has status, dates, a plain-English description and its source dataset. Requires one of "address", "bbl" or "bin".

Input parameters:

- `address` (string): NYC street address, e.g. "98 Grattan St, Brooklyn". Units (Apt 3B), borough and ZIP are optional; a 10-digit BBL or 7-digit BIN also works.
- `bbl` (string): 10-digit BBL (borough-block-lot), e.g. "3030090016". Send it as text.
- `bin` (string): 7-digit DOB building number (BIN), e.g. "3070696". Send it as text.
- `borough` (string): Optional: Manhattan, Bronx, Brooklyn, Queens or Staten Island
- `limit` (integer): Maximum records per section
- `zip` (string): Optional 5-digit ZIP, sent as text

### `get_sales_history` (~219 tokens)

Deed / sales history (ACRIS)

Deeds recorded with the NYC City Register (ACRIS) for a property: date, stated price (0 = non-market transfer), grantors, grantees, and whether the deed covers several lots. Requires one of "address", "bbl" or "bin".

Input parameters:

- `address` (string): NYC street address, e.g. "98 Grattan St, Brooklyn". Units (Apt 3B), borough and ZIP are optional; a 10-digit BBL or 7-digit BIN also works.
- `bbl` (string): 10-digit BBL (borough-block-lot), e.g. "3030090016". Send it as text.
- `bin` (string): 7-digit DOB building number (BIN), e.g. "3070696". Send it as text.
- `borough` (string): Optional: Manhattan, Bronx, Brooklyn, Queens or Staten Island
- `limit` (integer): Maximum deeds returned
- `zip` (string): Optional 5-digit ZIP, sent as text

### `search_properties` (~174 tokens)

Search NYC properties by street and/or ZIP

List tax lots on a street (prefix match, e.g. "Grattan St") and/or in a ZIP code, with address, building class, units, owner of record and open-item count. Requires "street" and/or "zip"; borough and house_number only narrow the search. Paginate with limit/offset; total is the number of matches.

Input parameters:

- `borough` (string): Optional borough name
- `house_number` (string): Optional house number, sent as text
- `limit` (integer)
- `offset` (integer)
- `street` (string): Street name, e.g. "Grattan St" or "5th Ave". Required unless "zip" is given.
- `zip` (string): 5-digit ZIP, sent as text. Required unless "street" is given.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/jueluddinsf-nyc-property-facts/nycpropertyfacts#diagnostics

## Score history

- 2026-11-05: 73
- 2026-11-04: 73
- 2026-11-03: 72
- 2026-11-02: 72
- 2026-11-01: 71

## Common questions

### What is the NYC Property Facts MCP server?

NYC Property Facts is an MCP server listed in the public MCP registry as io.github.jueluddinsf/nyc-property-facts. Public records for any NYC property by address or BBL: permits, violations, sales, owners. This page covers its hosted endpoint (https://nycpropertyfacts.com/mcp).

### Is the NYC Property Facts MCP server safe to use?

NYC Property Facts scores 73 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 NYC Property Facts MCP server expose?

NYC Property Facts exposes 5 tools: lookup_property, get_property, list_open_issues, get_sales_history, search_properties. Their descriptions and schemas cost roughly 961 tokens of context every time the server is loaded.

### Does the NYC Property Facts MCP server require authentication?

No. We connected to NYC Property Facts without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the NYC Property Facts MCP server still maintained?

NYC Property Facts is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What did VerifyMCP test on the NYC Property Facts MCP server?

VerifyMCP ran 13 checks on NYC Property Facts, covering TLS certificate, Authorization, HTTPS, HSTS header and 9 more. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- Remote endpoint: https://nycpropertyfacts.com/mcp
- Website: https://nycpropertyfacts.com/developers
- Changelog RSS feed: https://verifymcp.io/servers/jueluddinsf-nyc-property-facts/nycpropertyfacts.xml
- Changelog JSON feed: https://verifymcp.io/servers/jueluddinsf-nyc-property-facts/nycpropertyfacts/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/jueluddinsf-nyc-property-facts/nycpropertyfacts.json
- HTML version of this page: https://verifymcp.io/servers/jueluddinsf-nyc-property-facts/nycpropertyfacts