MCP SERVERDue diligence on any NYC address in plain English — violations, liens, sales and deed history, ownership behind the LLC, permits, rent stabilization, evictions, fire and crime data.
LABSCO SUMMARY
The address-to-BBL step is what makes the rest work, and the README says to call it first for that reason — a lookup on the wrong lot returns clean records for a building you are not buying. analyze_property is the one to reach for when you are screening rather than investigating, since it fans out the sub-queries concurrently instead of costing you a dozen round trips. Two limits worth knowing before you rely on it: rent stabilization data stops at 2017, and the tool reports records only — no valuation, no demographics, no tenant screening.
An MCP server over 20+ New York City public record datasets, loaded into PostgreSQL from nycdb so queries run against a local database rather than a rate-limited open-data API. It answers property questions the way a buyer's checklist does — what is wrong with the building, who owns it, what it sold for, what is owed on it. It is explicitly a due-diligence tool, not an appraisal tool: it surfaces records and does not estimate value.
lookup_propertyget_property_issuesget_hpd_complaints, get_dob_complaintsget_hpd_litigations, get_hpd_registrationget_property_historyget_liens_and_encumbrances, get_tax_infoget_building_permitsget_rent_stabilizationsearch_comps, search_neighborhood_statsget_fdny_fire_incidents, get_311_complaints, get_evictions, get_nypd_crimeanalyze_propertyHosted, with a token: sign up on the project's site for a trial key — 10 queries a day for 30 days, including up to 5 full due-diligence reports — and point a client at the HTTP endpoint with an Authorization: Bearer header. There is also a web chat with 3 free queries and no signup, if you only want to see what it returns. The README also describes self-hosting on PostgreSQL with about 19 million rows from nycdb, but the database dump and seed script it relies on are not in the repository, so the hosted endpoint is the route that works.
One command plus a key — claude mcp add --transport http nyc-property-intel "https://nyc-property-intel-production.up.railway.app/mcp" --header "Authorization: Bearer YOUR_TOKEN" --scope user
USE CASES
Resolve the address, then run the full due-diligence pass in one call and read the risk factors, financials and comps together.
Pull HPD and DOB violations with ECB penalties, filtered by severity and open status, then check the complaints that came before them for what is still building up.
Read the HPD registration for the managing agent and head officer behind the LLC, and check whether that owner is in housing court.
Look at tax lien entries and ACRIS mortgages with lender names and amounts, alongside the current assessment and any exemptions.
Read the sale and deed history back to 2003, then pull comparable sales in the zip code with the quarterly statistics around them.
Check 311 complaints at the address, fire incidents in the building, evictions executed there, and crime complaints within a few blocks.
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
analyze_propertyGenerate a comprehensive due diligence summary for a NYC property.
Combines data from 14 sources concurrently: property profile, HPD/DOB violations, HPD complaints, HPD litigations, HPD registration, evictions, building permits, 311 complaints, sales history, tax assessment, tax liens, ACRIS mortgages, rent stabilization, and comparable sales. Use this when the user wants a complete picture of a property for investment analysis.
get_311_complaintsGet 311 service request complaints filed at or near a property address.
Queries the local 311 database (NYC Open Data). Covers noise, rodents, illegal dumping, graffiti, heat/hot water, illegal parking, street conditions, and ~200 other complaint types.
311 data is a leading-indicator for neighborhood quality and building distress — complaints are filed *before* violations are issued. High complaint volume at an address is a red flag for active tenant issues.
Provide either address OR bbl (not both).
Args: address: Street address, e.g. "37-06 80th Street, Queens". bbl: 10-digit NYC BBL. Resolved to street address via PAD table. complaint_type: Filter by complaint type keyword, e.g. "NOISE", "RODENT", "HEAT", "ILLEGAL PARKING". Case-insensitive. since_year: Return only complaints from this year onward (2010–present). status: Filter by status: "Open" or "Closed". limit: Max complaints to return (1–100, default 30).
get_building_permitsGet DOB building permit filings and job applications for a property.
Shows new building, alteration, and demolition applications with costs, status, proposed changes (stories, units, height), and applicant info. Use this to understand planned or completed construction activity.
get_dob_complaintsGet DOB complaints filed against a property with the Dept of Buildings.
Queries the DOB Complaints Received dataset (NYC Open Data eabe-havv). Complaints are filed *before* formal violations are issued — they trigger DOB inspections and are the earliest public signal of construction, safety, or code issues at a building.
Key insight: compare this with get_property_issues violations. If a property has many complaints but few violations, DOB may not be inspecting. If complaints are recent and unresolved, it flags active safety concerns.
Common complaint categories: illegal construction (01), elevator (02), plumbing (03), illegal conversion (04), boiler (05), structural (06), facade (07), fire egress (09), work without permit (10), electrical (11).
Provide either address OR bbl (not both).
Args: address: Street address, e.g. "350 5th Ave, Manhattan". bbl: 10-digit NYC BBL. Resolved via BIN lookup for accurate matching. category: Filter by complaint category code, e.g. "01" for construction without permit, "04" for illegal conversion. status: Filter by status keyword, e.g. "OPEN", "CLOSED", "REFERRED TO DA". since_year: Return only complaints from this year onward. limit: Max complaints to return (1–100, default 25).
get_evictionsGet marshal eviction execution records for a property address.
Returns evictions that were *executed* (marshal removed tenant), not just filed. Covers residential and commercial evictions citywide from 2017.
BBL queries use a local indexed database for fast, exact lookups. Address queries use the Socrata API for full 126K-row dataset coverage.
Use this to assess tenant instability and cash-flow risk. Many executed evictions at a building may indicate distressed management, problematic tenants, or an owner pushing out rent-stabilized tenants.
Provide either address OR bbl (not both).
Args: address: Street address, e.g. "123 Main St, Brooklyn". bbl: 10-digit NYC BBL. Queried directly via BBL index. eviction_type: Filter by type: "Residential" or "Commercial". since_year: Return only evictions from this year onward (2017–present). limit: Max records to return (1–100, default 25).
get_fdny_fire_incidentsGet FDNY fire and emergency incident history for a property address.
Queries the local FDNY incident database (NYC Open Data dataset 8m42-w767). Returns fire incidents, structural fires, EMS responses, and other emergency calls associated with a property's zip code and borough. Falls back to the Socrata API for finer-grained address matching if local table unavailable.
Use this to identify fire history, structural fire risk, repeated emergency responses, or patterns of emergency calls at a property's location.
Provide either address OR bbl (not both). If BBL is given, the tool resolves it to a zip code before querying.
Args: address: Street address, e.g. "37-06 80th Street, Queens" or "350 5th Ave, Manhattan". Borough or zip code recommended. bbl: 10-digit NYC BBL, e.g. "4008020015". Alternative to address. incident_type: Filter by incident type keyword, e.g. "FIRE", "STRUCTURAL", "EMS", "MEDICAL". Case-insensitive. since_year: Return only incidents from this year onward, e.g. 2018. Data available from 2013. limit: Max incidents to return (1–100, default 20).
get_hpd_complaintsGet HPD tenant complaints and reported problems for a property.
Complaints are leading indicators of building distress — they show what tenants are reporting before formal violations are issued. Categories include PLUMBING, PAINT/PLASTER, HEAT/HOT WATER, PEST CONTROL, etc. Use this alongside violations to assess a building's condition.
Note on historical depth: our local DB retains all historical HPD complaints, while NYC's live Socrata API rolls older records out of its public feed. As a result, totals reported here may exceed what data.cityofnewyork.us shows for the same BBL — the extra rows are real, just no longer surfaced by NYC Open Data.
get_hpd_litigationsGet HPD litigation history — cases where HPD sued the building owner.
HPD only litigates the worst-offending buildings. This is a strong red flag for investors. Shows case types (heat/services, harassment, tenant protection), harassment findings, open judgements, and penalties. A building with HPD litigation history carries significant regulatory risk.
get_hpd_registrationGet HPD building registration and contact info.
Shows the managing agent, corporate owner, head officer, and site manager for a registered NYC building. Required for buildings with 3+ residential units. Use this to find who manages or owns a building.
get_liens_and_encumbrancesGet tax liens and mortgage/encumbrance records for a property.
Shows DOF tax lien sale list entries and ACRIS recorded documents — mortgages, satisfactions, condo common-charge liens (LOCC), tax lien sale certificates (TLS/ATL/AMTL), and tax-lien discharges (DTL/RTXL) — including party names and amounts. Use this to assess a property's debt profile and lien exposure. Not covered (different filing systems): federal tax liens, mechanic's liens, and court-filed lis pendens.
get_nypd_crimeGet NYPD crime complaints within a radius of a property.
Queries the local NYPD complaint database (NYC Open Data) using a geospatial bounding-box search centered on the property's lat/lon. Returns all complaint types — felonies, misdemeanors, and violations — filed within the specified radius. Falls back to Socrata API if local table is unavailable.
Uses the property's PLUTO coordinates (lot centroid) for accuracy. Default radius of 300 m covers roughly 3 city blocks in any direction.
Use this to assess neighborhood safety for buyers, lenders, or underwriters. Compare felony vs misdemeanor breakdown, trend over years, and dominant offense types (assault, burglary, grand larceny, etc.).
Provide either address OR bbl (not both).
Args: address: Street address, e.g. "350 5th Ave, Manhattan". bbl: 10-digit NYC BBL. Coordinates resolved from PLUTO. radius_meters: Search radius in meters (50–800, default 300 ≈ 3 blocks). law_category: Filter by "FELONY", "MISDEMEANOR", or "VIOLATION". Case-insensitive. offense: Filter by offense keyword, e.g. "ASSAULT", "BURGLARY", "GRAND LARCENY", "ROBBERY". Case-insensitive. since_year: Return only complaints from this year onward (2006–present). limit: Max complaints to return (1–200, default 50).
get_property_historyGet the history of a NYC property including sales and ownership transfers.
Pulls sales from DOF records and ownership transfers from ACRIS deed records. Shows sale prices, dates, buyer/seller names, and document types. Use this to understand a property's transaction history and price trajectory.
get_property_issuesGet HPD housing violations, DOB building code violations, and ECB/OATH violations for a property.
HPD Class C violations are immediately hazardous. ECB violations include penalties and balances due. Returns both summary counts and violation details. Use this to assess a building's regulatory risk profile.
Note on historical depth: our local DB retains all historical HPD violations and complaints, while NYC's live Socrata API rolls older records out of its public feed. As a result, the totals reported here may exceed what data.cityofnewyork.us shows for the same BBL — the extra rows are real, just no longer surfaced by NYC Open Data.
get_rent_stabilizationGet rent stabilization history for a property.
Shows stabilized unit counts from 2007-2017 and whether counts are estimated or confirmed by DHCR. Use this to check if a building is rent-stabilized and track unit count changes over time.
get_tax_infoGet property tax assessment, market value, and exemption details.
Shows assessed and market values (land and total), tax class, taxable value, and any active tax exemptions like 421a, J-51, or STAR.
lookup_propertyLook up a NYC property by address or BBL.
Returns the full property profile including building details, zoning, assessed value, owner, and lot characteristics. This is always the first tool to call — you need a BBL before using other tools.
search_compsFind comparable property sales and neighborhood market statistics.
Can search by zip code, building class, size, and time period. If a reference BBL is provided, uses that property's characteristics as defaults. Returns individual sales with price per sqft and quarterly market trends.
search_neighborhood_statsGet aggregate neighborhood statistics for market research and area analysis.
Combines property stock data, sales market activity, violation patterns, and rent stabilization counts at the zip code or neighborhood level. Use this to compare areas, identify investment hotspots, or understand a neighborhood's character before drilling into individual properties.
At least one of zip_code or neighborhood is required.
BEFORE YOU INSTALL
18 tools when we connected.
A client that can reach a remote MCP server over HTTP
CONTEXT COST
Rated by the size of the 18 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
claude mcp add --transport http nyc-property-intel \
"https://nyc-property-intel-production.up.railway.app/mcp" \
--header "Authorization: Bearer <YOUR_TOKEN>" \
--scope userhttps://nyc-property-intel-production.up.railway.app/mcpAdd this hosted endpoint to your MCP client using the credentials listed under Requirements.
MCP servers
Tianning-lab
LarryWalkerDEV
daejung83
ashev87