631 Vanderbilt Avenue, Brooklyn, NY 11238
BBL 3011520009 (Borough 3, Block 1152, Lot 9) · BIN 3028484 · Last updated:
Summary · as of November 6, 2026
631 Vanderbilt Avenue (Brooklyn, NY 11238; tax lot BBL 3011520009) is a 2-unit mixed-use building with apartments and ground-floor commercial space (building class S2: mixed-use: two-family home with one store or office), built around 1870, on a 1,750 sq ft lot zoned R7A. City tax records list the owner as 631 PLAZA LLC; per ACRIS, a deed to this owner dated September 20, 2018 lists a price of $1,977,000. The Department of Finance's final market value for tax year 2027 is $665,000. As of November 6, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off and one active DOB violation. There were nine 311 requests in the past 12 months and no HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- 631 PLAZA LLC
- Building class
- S2 · Mixed-use: two-family home with one store or office
- Year built · units
- 1870 · 2 res.
- Lot area · zoning
- 1,750 sq ft · R7A
- Market value (DOF)
- $665,000 FY2027
- Last priced deed
- $1,977,000 · 2018-09-20
- BBL
- 3011520009
- BIN
- 3028484
- 1Open DOB jobs (permit issued, no sign-off)
- 1Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “631 Vanderbilt Avenue, Brooklyn, NY 11238 (BBL 3011520009)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/631-vanderbilt-avenue-3011520009. Source: NYC Open Data.
Lot & building
Basic facts about the tax lot and building from the city’s PLUTO database.
- Owner (as listed by the city)
- 631 PLAZA LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- S2 – Mixed-use: two-family home with one store or officeThe Department of Finance’s category for what kind of building this is.
- Land use
- Mixed residential & commercialCity Planning’s broad category of how the lot is used.
- Year built
- 1870Often an estimate for older buildings. Major alteration recorded: 2021, 2021.
- Floors
- 1
- Units
- 2 residential / 3 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,750 sq ft (25 ft × 70 ft)
- Building floor area
- 5,350 sq ft (incl. 1,628 sq ft commercial)
- Zoning
- R7A, C1-4The zoning district sets what can be built and used here. Residential district; the overlay (C1/C2…) allows local retail on residential blocks.
- Built vs. allowed density (FAR)
- 3.06 built / 4.00 max residentialFloor Area Ratio = building floor area ÷ lot area. If built FAR is below the maximum, zoning may allow more floor area (other rules apply).
- Historic district
- Prospect Heights Historic DistrictExterior changes in a historic district need Landmarks Preservation Commission approval.
- Identifiers
- BBL 3011520009 (Borough 3, Block 1152, Lot 9) · BIN 3028484BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).
Agency lookups: DOB BIS · ZoLa (zoning map) · ACRIS
Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; data as of 2026-11-06; Building Footprints — city dataset updated 2026-10-25; data as of 2026-11-01
Tax assessment
How the Department of Finance values this lot for property tax.
- Market value (tax year 2027, final roll)
- $665,000The Department of Finance’s estimate of value for tax purposes. It is not an appraisal and is often far from the sale price.
- Assessed value
- $39,900The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $38,562Assessed value minus any exemptions.
- Tax class
- Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $665,000 | $39,900 | 1 |
| 2026 | Final | $614,000 | $36,840 | 1 |
| 2025 | Final | $572,000 | $34,320 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-06
Sales & deed history 5
Deeds recorded with the City Register (ACRIS). A deed transfers ownership. A $0 or very low price usually means a transfer between related parties, an estate, or a refinance-related transfer, not a market sale. This is not a title search; mortgages, liens and other documents are not shown.
| Date | Type | Price | Seller (grantor) | Buyer (grantee) | Doc ID |
|---|---|---|---|---|---|
| 2018-09-20 | DEED | $1,977,000 | 613 Associates Llc | 631 Plaza Llc | 2018092700605001 |
| 2015-01-13 | DEED | $750,000 | Estate Of Fritzie Weiner; Estate Of Lewis Weiner; Joyce Weiner, As Executrix; Stanford Weiner, As Administrator | 613 Associates Llc | 2015012000281001 |
| 1984-04-10 | DEED | $0 / not stated | Vandeer Plumb.& Htngcp | Weiner, Fritzie; Weiner, Lewis | FT_3480001019648 |
| 1978-05-22 | DEED | $0 / not stated | Vandeer Holding Corp | Vandeer Plumbing & Heating Corp | BK_7830099500263 |
| 1971-11-04 | DEED | $0 / not stated | Vandeer Plumbing & Heating Corp | Vandeer Holding Corp | BK_7130051701045 |
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-06; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-06; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-06
DOB job filings 1 open of 26
A “job” is an application to the Department of Buildings to do construction work. A job marked Permitted, not signed off had a work permit issued but the city has no record of final sign-off (inspection/completion). Old jobs left in this state are common and appear in buyer and lender due diligence; the work may or may not have been done.
| Status | Job # | Type | Filed | Est. cost |
|---|---|---|---|---|
| Permitted, not signed off PERMIT ISSUED - PARTIAL JOB · 2017-07-27 | 321629396 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2017-07-27 | $55,000 |
| Not open LOC Issued · 2024-08-27 | B00986471-S1 DOB NOW | Alteration | 2024-01-11 | $7,500 |
| Not open LOC Issued · 2024-07-24 | B00986471-I1 DOB NOW | Alteration | 2024-01-11 | $69,400 |
| Not open Approved · 2023-11-03 | B00358374-P2 DOB NOW | Alteration | 2023-09-27 | $30,000 |
| Not open Approved · 2023-06-14 | B00358357-P2 DOB NOW | Alteration | 2023-06-06 | $28,000 |
| Not open Approved · 2023-07-19 | B00358374-P1 DOB NOW | Alteration | 2023-05-10 | $30,000 |
| Not open Approved · 2023-05-25 | B00358357-P1 DOB NOW | Alteration | 2023-05-10 | $28,000 |
| Not open Approved · 2023-05-16 | B00358408-P1 DOB NOW | Alteration | 2023-05-10 | $20,000 |
| Not open LOC Issued · 2023-09-25 | B00864466-I1 DOB NOW | Alteration | 2023-04-25 | $35,000 |
| Not open LOC Issued · 2023-08-29 | B00864452-I1 DOB NOW | Alteration | 2023-04-25 | $25,000 |
| Not open Filing Withdrawn · 2024-04-17 | B00830768-S1 DOB NOW | Alteration | 2023-03-31 | $50,000 |
| Not open Filing Withdrawn · 2024-04-17 | B00830768-I1 DOB NOW | Alteration | 2023-03-15 | $100,000 |
| Not open LOC Issued · 2023-03-29 | B08024476-I1 DOB NOW | Alteration | 2022-10-20 | $5,000 |
| Not open Approved · 2022-09-15 | B00365035-P2 DOB NOW | Alteration | 2022-09-08 | $1,000 |
| Not open Approved · 2022-07-26 | B00756040-P1 DOB NOW | Alteration | 2022-07-26 | $1,000 |
| Not open LOC Issued · 2023-04-06 | B00756040-I1 DOB NOW | Alteration | 2022-06-13 | $1,000 |
| Not open LOC Issued · 2023-08-29 | B00630504-I1 DOB NOW | Alteration | 2021-11-19 | $10,000 |
| Not open Approved · 2021-11-26 | B00365035-P1 DOB NOW | Alteration | 2021-10-08 | $1,000 |
| Not open LOC Issued · 2023-09-25 | B00365035-I1 DOB NOW | Alteration | 2020-07-13 | $1,000 |
| Not open LOC Issued · 2023-11-14 | B00358374-I1 DOB NOW | Alteration | 2020-07-08 | $30,000 |
Showing 20 of 26 records. The API and the source dataset have the full list.
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-05; data as of 2026-11-06; DOB Job Application Filings (BIS) — city dataset updated 2026-11-05; data as of 2026-11-06
Work permits 30
Individual permits issued under DOB jobs (one job can have several permits, e.g. plumbing and construction). Permit expiration alone does not mean the job was completed or signed off.
| Issued | Expires | Job # | Work | Permit status |
|---|---|---|---|---|
| 2024-02-02 | 2024-10-09 | B00986471-S1 DOB NOW | Plumbing JOB FILED EXIST. EATING AND DRINKING ESTABLISHMENT INSTALL NEW PLUMBING FIXTURE PER PLAN. NO CHANGE OF USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION. | Signed-off |
| 2024-01-29 | 2024-12-31 | B00986471-I1 DOB NOW | General Construction JOB FILED TO FIT-OUT EXIST EATING AND DRINKING ESTABLISHMENT INCLUDING NEW COUNTER, EQUIPMENT, NEW TILE AND PAINTING AS PER PLAN. NO CHANGE OF USE, EGRESS, OR | Signed-off |
| 2023-07-07 | 2023-10-27 | B00864466-I1 DOB NOW | Mechanical Systems Installation of Mechanical Systems | Signed-off |
| 2023-06-06 | 2024-01-01 | B00358357-I1 DOB NOW | Plumbing PLUMBING WORK IN CONJUNCTION WITH ALT-1 | Signed-off |
| 2023-05-25 | 2023-10-27 | 321982887 BIS | Alteration | ISSUED (renewal) |
| 2023-05-04 | 2024-01-01 | B00864452-I1 DOB NOW | Plumbing Plumbing work gas scope | Signed-off |
| 2022-12-06 | 2023-12-06 | B00358374-I1 DOB NOW | Mechanical Systems MECHANICAL WORK IN CONJUNCTION WITH ALT-1 | Signed-off |
| 2022-12-06 | 2023-10-27 | B00630504-I1 DOB NOW | Construction Fence Construction a new 8 feet high Construction Fence as per the department of buildings code. | Signed-off |
| 2022-10-20 | 2023-10-20 | B08024476-I1 DOB NOW | Supported Scaffold INSTALLATION OF PIPE SCAFFOLDING AS PER PLANS. ALL EQUIPMENT SHALL COMPLY WITH CHAPTER # 33 OF THE 2014 CODE. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS AP | Signed-off |
| 2022-10-19 | 2022-12-03 | B00630504-I1 DOB NOW | Construction Fence Construction a new 8 feet high Construction Fence as per the department of buildings code. | Signed-off |
| 2022-10-19 | 2023-05-23 | 321982887 BIS | Alteration | ISSUED (renewal) |
| 2022-06-22 | 2023-06-22 | B00358408-I1 DOB NOW | Sprinklers INSTALLATION OF NEW SPRINKLER SYSTEM | Signed-off |
Showing 12 of 30 records. The API and the source dataset have the full list.
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-05; data as of 2026-11-06; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31
DOB violations 1 active of 1
Violations issued by the Department of Buildings for building-code or zoning conditions. Active means DOB has not recorded the violation as resolved or dismissed. Many active DOB violations are old (e.g. elevator or boiler inspection paperwork).
| Status | Issued | Type | Description | Number |
|---|---|---|---|---|
| Active V-DOB VIOLATION - ACTIVE | 2023-01-26 | C-CONSTRUCTION OTHER OPTIONAL | PARTIAL VACATE ORDER-OBSERVED BULGING RELIEVING ANGLE BRICK WORK AT EXP4 WEST ELEVATION OF THE NEIGHBORING BLDG 238 ST MARKS AVENUE WHICH DIRECTLY AFFECT THE REAR YARD OF THE BLDG 631 VANDERBILT AVE REMEDY: VACATE THE BUILDING REAR YARD | V012623CFA0804SM |
Source: DOB Violations — city dataset updated 2026-11-05; data as of 2026-11-06
ECB violations (DOB) 0 active of 6
DOB violations that go to a hearing at OATH (formerly the Environmental Control Board) and can carry fines. Active or Resolved follows the DOB violation status field. The hearing status is about the hearing and its penalty: written off means the city stopped collecting the fine, not that the condition was corrected. A balance due is a fine the city says is unpaid.
| Status | Issued | Severity | What it was for | Penalty / paid / balance | ECB # |
|---|---|---|---|---|---|
| Resolved Hearing: DISMISSED · Certification: N/A - DISMISSED | 1997-03-06 | Hazardous | WORK WITHOUT A PERMIT HAZ WORK NOTED (1) PENETRATION OF PARTY BRICKWORK WALL BETWEEN 631 & 633 VANDRBILT AVE AND INSTALLATION OF NON FIREPROOF & NON SELF CLOSING DOOR APPROX 2'-8'X6'-8" (2) INSTALLATIONS WARE | $0 / $0 / $0 | 34151982H |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2022-06-06 | CLASS - 1 | FAILURE TO PERFORM DUTIES OF CONSTRUCTION SUPERINTENDENT.NOTE:AT THE TIME OF INSPECTION,I OBSERVED 3 WORKERS ONSITE NO DESIGNATED COMPETENT PERSON,NO OCCUPANT PROTECTION SAFETY PLAN NO PAPER WORK ONSITE.CODE ST | $10,000 / $10,039 / $0 | 35652654K |
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2022-06-06 | CLASS - 2 | POSTING UNLAWFUL SIGNS,INFORMATION,BUSINESS OR ADVERTISING MASSAGES ONPROTECTIVE STRUCTURE(FENCE).NOTED:DURING THE TIME OF INSPECTION IT WASOBSERVED ILLEGAL BUSINESS INFORMATION AND ADVERTISING POSTED ON CONSTR | $0 / $0 / $0 | 35652655M |
| Resolved Hearing: DISMISSED · Certification: CERTIFICATE ACCEPTED | 2022-08-02 | CLASS - 1 | UPON FURTHER REVIEW IN DOB NOW AND BUILDING INFORMATION SYSTEM, NO SPECIAL AGENCY WAS RETAINED OR ACCEPTED RESPONSIBILITY TO OVERSEE THE INSTALLATION OF C JOIST TO CONFIRM THAT WORK IS COMPLYING WITH APPROVE DO | $0 / $0 / $0 | 39504448K |
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2022-08-02 | CLASS - 2 | 4- SWS NOT PER PLANS, INSTALLATION, EXTENDED, CATCH-ALL - PSWO ABOVE 1 FLOOR - SCAFFOLD COMPANY SWS NOT FULLY EXTENDED ON SIDEWALK . | $0 / $0 / $0 | 39504457M |
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2022-08-02 | CLASS - 2 | FENCE & GATE CONTRARY TO PLANS AT TIME OF INSPECTION OF AN ACTIVE JOB SITE I OBSERVED A ROLLING GATE ,ON SSP IT SHOWS A PLYWOOD FENCE .AMENDED PLANS . | $0 / $0 / $0 | 39504488P |
Source: DOB ECB Violations — city dataset updated 2026-11-05; data as of 2026-11-06
OATH tickets (all agencies) 0 unpaid of 17
Summonses heard at the Office of Administrative Trials and Hearings, from agencies like Sanitation, Buildings, Fire and Health, linked to this lot’s block and lot. Default means the respondent did not appear at the hearing, which typically results in the maximum penalty. Tickets may be issued to tenants or businesses at the address, not just the owner. DOB ECB tickets appear here too.
| Status | Date | Agency | Charge | Respondent | Imposed / paid / balance | Ticket # |
|---|---|---|---|---|---|---|
| No balance due PAID IN FULL | 2026-09-24 | Sanitation Others | FAIL TO CLEAN 18 INCH INTO STREET COMM MAN INDUSTRIAL MIXED USE 1ST | YEMCAFE CORP BONTREE BONTREE | $50 / $50 / $0 | 080059540R |
| No balance due PAID IN FULL | 2026-07-27 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | 631 PLAZA LLC | $50 / $50 / $0 | 049889081X |
| No balance due PAID IN FULL | 2026-01-17 | Dos - Enforcement Agents | SIDEWALK OBSTRUCTION COMM MAN INDUSTRIAL MIXED USE 1ST | BONTREE CAFE | $50 / $50 / $0 | 049519108Z |
| No balance due PAID IN FULL | 2025-09-19 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES PLACED OUT PRIOR TO 6PM | 631 PLAZA LLC | $50 / $50 / $0 | 047512708H |
| No balance due PAID IN FULL | 2025-05-06 | Dos - Enforcement Agents | IMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1ST | 631 PLAZA LLC | $50 / $50 / $0 | 049125908P |
| No balance due PAID IN FULL | 2024-01-02 | Sanitation Others | LOOSE RUBBISH 1ST OCCURRENCE | 631 PLAZA LLC | $50 / $50 / $0 | 048021353H |
| No balance due PAID IN FULL | 2023-04-01 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | 631 PLAZA LLC | $50 / $50 / $0 | 047572563K |
| No balance due HEARING COMPLETED · IN VIOLATION | 2022-08-02 | Dept. Of Buildings | WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCUMENTS AMENDMENTS | ABECO CONSTRUCTION LLC | $0 / $0 / $0 | 039504488P |
| No balance due HEARING COMPLETED · IN VIOLATION | 2022-08-02 | Dept. Of Buildings | WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCUMENTS AMENDMENTS | MNK ENTERPRISES LLC | $0 / $0 / $0 | 039504457M |
| No balance due HEARING COMPLETED · DISMISSED | 2022-08-02 | Dept. Of Buildings | MISCELLANEOUS VIOLATIONS | ABECO CONSTRUCTION LLC | $0 / $0 / $0 | 039504448K |
| No balance due HEARING COMPLETED · IN VIOLATION | 2022-06-06 | Dept. Of Buildings | POSTING OF UNLAWFUL SIGNS INFO PICTURES ADS ON PROTECTIVE STRUCTURES | ABECO CONSTRUCTION LLC | $0 / $0 / $0 | 035652655M |
| No balance due PAID IN FULL · IN VIOLATION | 2022-06-06 | Dept. Of Buildings | CONSTRUCTION SUPERINTENDENT FAILED TO PERFORM DUTIES PER CODE | JAMES WINTER | $10,000 / $10,039 / $0 | 035652654K |
Showing 12 of 17 records. The API and the source dataset have the full list.
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-06; data as of 2026-11-06
HPD registration & contacts
Owners of most rental buildings must register with the Department of Housing Preservation and Development each year and list an owner and managing agent.
No HPD registration found. Registration is required for buildings with 3 or more apartments (and for 1–2 family homes where neither the owner nor family lives there).
Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-06; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-06
HPD housing-code violations 0 open of 0
Violations HPD inspectors issued for conditions in residential buildings (heat, leaks, mold, pests, lead paint, etc.). Class letters show how serious: Class A – non-hazardous (HPD gives 90 days to correct); Class B – hazardous (30 days to correct); Class C – immediately hazardous (24 hours to correct for most conditions); Class I – information / order (e.g. orders to register, lead or other administrative orders). Open means HPD has not recorded the condition as corrected.
No records found in this dataset for this lot.
Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-05; data as of 2026-11-06
HPD complaints 0
Complaints tenants or others made to HPD (usually via 311) about housing conditions, from 2019 onward. A complaint is not a violation; HPD may inspect and issue one.
No records found in this dataset for this lot.
Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-06; data as of 2026-11-06
311 requests (last 12 months) 9
Recent 311 service requests the city geocoded to this lot: noise, illegal parking, heat, sanitation and more. Anyone can file them, so they describe activity at or near the address, not necessarily the building itself.
| Opened | Agency | Complaint | Status | Closed |
|---|---|---|---|---|
| 2026-07-31 | DOT | Sidewalk Condition – Broken Sidewalk | Closed | 2026-08-20 |
| 2026-06-26 | NYPD | Illegal Parking – Blocked Bike Lane | Closed | 2026-06-27 |
| 2026-06-25 | NYPD | Illegal Parking – Blocked Bike Lane | Closed | 2026-06-25 |
| 2026-04-04 | TLC | For Hire Vehicle Complaint – Driver Complaint - Non Passenger | In Progress | — |
| 2026-04-04 | NYPD | Illegal Parking – Blocked Bike Lane | Closed | 2026-04-04 |
| 2026-03-25 | NYPD | Illegal Parking – Blocked Bike Lane | Closed | 2026-03-25 |
| 2026-03-23 | TLC | For Hire Vehicle Complaint – Driver Complaint - Non Passenger | In Progress | — |
| 2026-03-23 | NYPD | Illegal Parking – Blocked Bike Lane | Closed | 2026-03-23 |
| 2026-02-15 | DCWP | Consumer Complaint – Other Store (Non-Food) | Closed | 2026-02-17 |
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-06; data as of 2026-11-06
Nearby properties
More in Prospect Heights: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
On Vanderbilt Ave
- 632 Vanderbilt Avenue (36 open items)
- 630 Vanderbilt Avenue (one open item)
- 633 Vanderbilt Avenue (two open items)
- 629 Vanderbilt Avenue (51 open items)
- 628 Vanderbilt Avenue (12 open items)
- 635 Vanderbilt Avenue (eight open items)
- 627 Vanderbilt Avenue (four open items)
- 626 Vanderbilt Avenue (nine open items)
- 637a Vanderbilt Avenue (five open items)
- 637 Vanderbilt Avenue (11 open items)
Same tax block (1152)
- 643 Vanderbilt Avenue
- 641 Vanderbilt Avenue (two open items)
- 639 Vanderbilt Avenue (three open items)
- 637a Vanderbilt Avenue (five open items)
- 637 Vanderbilt Avenue (11 open items)
- 635 Vanderbilt Avenue (eight open items)
- 633 Vanderbilt Avenue (two open items)
- 629 Vanderbilt Avenue (51 open items)
- 627 Vanderbilt Avenue (four open items)
- 625 Vanderbilt Avenue (25 open items)
All properties on Vanderbilt Ave, Brooklyn · All of Brooklyn 11238
Open-item counts as of November 6, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs