Check NYC building violations in ChatGPT, Claude or any AI assistant
SinoConnection's free lookup works inside AI assistants three ways — a connector, a link, or an API. All read New York City's public records, and the assistant explains them in your language.
Last checked: 2026-09-14 · Based on official NYC websites; sources at the end
What it does
- Finds the building from an address; if one address matches several different buildings, it asks you to choose.
- Shows the building's Department of Buildings (DOB), OATH/ECB and HPD violations, complaints, Stop Work Order summonses and related records — the same data as this site's lookup tool.
- Lists each open record in the City's own wording.
- Explains what a type of violation means, with the City's official source.
Option 1: the connector (ChatGPT, Claude)
https://mcp.sinoconnection.com/nyc/mcpAuthentication: none (No authentication)
Add it in ChatGPT
- Open chatgpt.com in a desktop browser, go to Settings → Connectors, and turn on Developer mode.
- Add a connector with the address above and set authentication to “No authentication”.
- Start a new chat, open the “+” menu next to the message box, enable the connector under Developer mode, and ask your question.
Add it in Claude
- Open claude.ai and go to Settings → Connectors.
- Choose “Add custom connector” and paste the address above.
- Enable it in a chat and ask your question.
Option 2: send a link (any AI that can open a web page)
Gemini, Perplexity, Copilot — and ChatGPT or Claude when they browse — can read a lookup directly. Send a link like this one, with your building's address:
https://www.sinoconnection.com/nyc/en/lookup?address=350+5th+Ave,+ManhattanLookup pages carry no owner names, are not indexed by search engines, and are not counted in this site's analytics.
Option 3: the API (Custom GPTs, developers)
The same lookup is a REST API described in OpenAPI 3.1, ready to import into a Custom GPT's Actions or another agent platform. No key; the same hourly limits as the connector:
https://mcp.sinoconnection.com/nyc/openapi.jsonThings you can ask
- Does 350 5th Ave, Manhattan have any open violations? Explain them simply.
- I paid my ECB fine — why does the violation still show as open?
- What does “Work Without a Permit” mean, and what can it hold up?
What it will not do
- It does not give owner names, contacts or addresses. If you need them, look them up yourself on this site's lookup page or on HPD Online.
- It does not make up deadlines, penalty amounts or step-by-step procedures; explanations come only from content checked against the City's websites.
- When part of the data cannot be read right now, it says so — it never reports that as “no violations”.
- When one address matches several different buildings, it does not guess.
- It is not legal or engineering advice.
Privacy and limits
All three record only operational data: which tool was called, the kind of result (for example “found” or “not found”), the record type requested, a general label for the AI assistant, a daily-rotating hashed network address and a session identifier. They do not record the address you enter or the building number. See the privacy policy.
Lookups use the City's free public data, so all AI access together, and each conversation, have an hourly limit to keep that use polite. If you reach it, use this site's lookup tool directly.
This page is general information, not legal or engineering advice. This website is not affiliated with any New York City government agency. The amounts and deadlines on your own notice take precedence.