355 St Johns Place, Brooklyn, NY 11238
BBL 3011737503 (Borough 3, Block 1173, Lot 7503) · BIN 3029419 · Last updated:
Also recorded in city data as: 353-355 St Johns Pl · 355 St John Pl · 355 St John'S Pl
Summary · as of November 6, 2026
355 St Johns Place (Brooklyn, NY 11238; tax lot BBL 3011737503) is a 16-unit condominium (building class R2: condominium (subtype R2)), built around 1909, on a 5,146 sq ft lot zoned R7A. City tax records list the owner as 355 ST.JOHNS PLACE CONDOMINUM. As of November 6, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off, one active ECB violation and two open HPD violations. There were eight 311 requests in the past 12 months and one HPD complaint since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- 355 ST.JOHNS PLACE CONDOMINUM
- Building class
- R2 · Condominium
- Year built · units
- 1909 · 16 res.
- Lot area · zoning
- 5,146 sq ft · R7A
- Market value (DOF)
- $0 FY2027
- Last priced deed
- —
- BBL
- 3011737503
- BIN
- 3029419
- 1Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violations
- 1Active ECB violations
- 2Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “355 St Johns Place, Brooklyn, NY 11238 (BBL 3011737503)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/355-st-johns-place-3011737503. 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)
- 355 ST.JOHNS PLACE CONDOMINUMThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- R2 – Condominium (subtype R2)The Department of Finance’s category for what kind of building this is.
- Land use
- Multi-family walk-up buildingsCity Planning’s broad category of how the lot is used.
- Year built
- 1909Often an estimate for older buildings. Major alteration recorded: 1984.
- Floors
- 4
- Units
- 16 residential / 16 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 5,146 sq ft (41.67 ft × 123.5 ft)
- Building floor area
- 10,238 sq ft
- Zoning
- R7AThe zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 1.99 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).
- Identifiers
- BBL 3011737503 (Borough 3, Block 1173, Lot 7503) · BIN 3029419BBL 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 2026-11-07; 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)
- $0The 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
- $0The portion of market value that taxes are calculated on (capped by law for small homes).
- Tax class
- Tax class 2 – residential, 4+ units
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $0 | $0 | 2 |
| 2026 | Final | $0 | $0 | 2 |
| 2025 | Final | $0 | $0 | 2 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-07
Sales & deed history 0
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.
No records found in this dataset for this lot.
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-07; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-07; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-07
DOB job filings 1 open of 5
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 Entire · 2025-06-26 | B01244010-I1 DOB NOW | Alteration | 2025-06-19 | — |
| Not open LOC Issued · 2026-01-12 | B01213567-I1 DOB NOW | Alteration | 2025-04-22 | $119,500 |
| Not open LOC Issued · 2025-02-25 | B01087185-I1 DOB NOW | Alteration | 2024-08-07 | $105,002 |
| Not open SIGNED OFF · 2021-06-07 | 322051523 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2019-08-23 | $9,000 |
| Not open SIGNED OFF · 2019-06-06 | 321783557 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2018-01-31 | $34,000 |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-06; data as of 2026-11-07; DOB Job Application Filings (BIS) — city dataset updated 2026-11-05; data as of 2026-11-06
Work permits 6
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 |
|---|---|---|---|---|
| 2025-06-26 | 2026-06-26 | B01244010-I1 DOB NOW | Suspended Scaffold Installation of suspended scaffold for facade work or inspection | Permit Issued |
| 2025-06-12 | 2026-05-15 | B01213567-I1 DOB NOW | General Construction INSTALL NEW ROOF MEMBRANE OVER EXISTING ROOF MEMBRANE. CLAD EXISTING STAIR BULKHEAD WITH CORRUGATED METAL PANELS. INSTALL NEW METAL COPINGS TO EXISTING PARAPET. | Signed-off |
| 2024-08-21 | 2024-11-07 | B01087185-I1 DOB NOW | General Construction Interior renovation to apt. 3A. Work to include non-structural demolition, general construction, and related finishes. No change in use, egress, or occupancy. | Signed-off |
| 2021-01-21 | 2021-06-09 | 322051523 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2018-02-02 | 2019-02-02 | 321783557 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2018-02-02 | 2019-01-26 | 321783557 BIS | Equipment work / Boiler | ISSUED (initial) |
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-06; data as of 2026-11-07; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; data as of 2026-11-07
DOB violations 0 active of 0
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).
No records found in this dataset for this lot.
Source: DOB Violations — city dataset updated 2026-11-06; data as of 2026-11-07
ECB violations (DOB) 1 active of 2
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: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2018-09-18 | CLASS - 2 | WORK W/O A PERMIT. IN REVIEW OF PHOTOGRAPHIC EVIDENCE FROM FDNY FIRE SCENE UNIT, BF1 JOB #2017-30560 COVER SHEET DATE 06-22-17 WORK HAS BEEN PERFORMED PRIOR TO AND POST FIRE W/O PERMIT. POST FIRE PHOTOS OF | $1,250 / $1,250 / $0 | 35262020P |
| Active Hearing: IN VIOLATION · Certification: NO COMPLIANCE RECORDED | 2020-01-03 | CLASS - 2 | THE CHIMNEY BASE CLEANOUT DOOR HAS BEEN CEMENTED OVER-THERE IS STORAGE IN THE BOILER ROOM; CORRECT VIOLATION AND SUBMIT THE CERTIFICATE OF CORRECTION | $312 / $314 / $0 | 39015204R |
Source: DOB ECB Violations — city dataset updated 2026-11-06; data as of 2026-11-07
OATH tickets (all agencies) 0 unpaid of 16
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 # |
|---|---|---|---|---|---|---|
| Hearing pending NEW ISSUANCE | 2026-10-23 | Fire Department Of Nyc | ROOFTOP ACCESS AND MEANS OF EGRESS | 355 ST JOHNS PL CONDO | $0 / $0 / $0 | 014281271L |
| No balance due PAID IN FULL | 2026-09-24 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | 355 ST JOHNS PLACE CONDOMINUM | $50 / $50 / $0 | 080059535M |
| No balance due HEARING COMPLETED · IN VIOLATION | 2026-06-11 | Fire Department Of Nyc | INSPECTION AND TESTING | 355 ST JOHNS PL CONDO | $0 / $0 / $0 | 014255240J |
| No balance due PAID IN FULL | 2026-04-30 | Sanitation Others | LOOSE RUBBISH 1ST OCCURRENCE | 355 ST JOHNS PLACE CONDOMINUM | $50 / $50 / $0 | 049718952X |
| No balance due PAID IN FULL | 2026-04-04 | Sanitation Others | FAIL TO RECYCLE ORGANIC WASTE 9 OR MORE DWELLING UNITS 1ST | 355 ST JOHNS PLACE CONDOMINUM | $100 / $100 / $0 | 049718831J |
| No balance due Default PAID IN FULL · DEFAULTED | 2026-02-01 | Sanitation Others | IMPROPER DISPOSAL--BEDDING 1ST OCCURRENCE | 355 ST JOHNS PLACE CONDOMINUM | $300 / $300 / $0 | 049578764R |
| No balance due PAID IN FULL | 2026-01-31 | Sanitation Others | IMPROPER DISPOSAL--BEDDING 1ST OCCURRENCE | 355 ST JOHNS PLACE CONDOMINUM | $50 / $50 / $0 | 049464945K |
| No balance due PAID IN FULL | 2026-01-30 | Dos - Enforcement Agents | IMPROPER DISPOSAL--BEDDING 1ST OCCURRENCE | 355 ST JOHNS PLACE CONDOMINUM | $50 / $50 / $0 | 049589364L |
| No balance due PAID IN FULL | 2024-04-05 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST | C O GOLDEN MGMT | $300 / $300 / $0 | 0803020772 |
| No balance due PAID IN FULL | 2021-09-08 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST | CONDOMINUM | $300 / $300 / $0 | 0802063296 |
| No balance due HEARING COMPLETED · DISMISSED | 2020-12-09 | Fire Department Of Nyc | INSPECTION AND TESTING | 355 ST JOHNS 510 ASSOC | $0 / $0 / $0 | 011749864Z |
| No balance due PAID IN FULL · IN VIOLATION | 2020-01-03 | Dept. Of Buildings | FAIL MAINTAIN BLDG IN COMPLIANT MANNER: SERVICE EQUIPMENT - BOILER | 355 ST JOHNS PLACE CONDOMINUM | $312 / $314 / $0 | 039015204R |
Showing 12 of 16 records. The API and the source dataset have the full list.
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-07; data as of 2026-11-07
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.
- HPD building ID
- 373972
- Last registered
- 2026-08-24
- Registration valid until
- 2027-09-01 CurrentRegistrations must be renewed every year.
| Role | Name | Company | Business city |
|---|---|---|---|
| Sitemanager | Amir Dracini | ||
| Headofficer | Raul Daniel | New York, Ny | |
| Corporateowner | 355 ST. JOHNS PLACE CONDO | New York, Ny | |
| Agent | Thomas Sussewell | CHOICE NY MANAGEMENT | New York, Ny |
Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-07; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-07
HPD housing-code violations 2 open of 17
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.
| Status | Class | Issued | Apt | Condition |
|---|---|---|---|---|
| Open Nov Sent Out · 2026-07-06 | A | 2026-07-06 | § 27-2104 ADM CODE POST AND MAINTAIN A PROPER SIGN ON WALL OF ENTRANCE STORY SHOWING THE REGISTRATION NUMBER ASSIGNED BY THE DEPARTMENT AND THE ADDRESS OF THE BUILDING. AT PUBLIC HALL, 1st STORY | |
| Open Nov Sent Out · 2026-07-06 | A | 2026-07-06 | § 329, M/D LAW AND DEPT. RULES AND REGS. PROVIDE A COMPLETED CERTIFICATE OF INSPECTION VISITS IN A PROPER FRAME AT OR NEAR MAILBOXES, BOTTOM EDGE OF FRAME BETWEEN 48-62 INCHES ABOVE FLOOR MISSING AT PUBLIC HALL, 1st STORY | |
| Closed Violation Dismissed · 2024-12-02 | A | 2024-09-18 | § 27-2045 ADM CODE POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX MISSING AT PUBLIC HALL, 1st STORY | |
| Closed Violation Dismissed · 2024-12-02 | C | 2024-09-18 | § 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM MISSING AT PUBLIC HALL, 1st STORY | |
| Closed Violation Dismissed · 2023-12-12 | A | 2023-03-24 | (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Dismissed · 2022-06-17 | A | 2022-03-02 | (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Dismissed · 2019-02-12 | I | 2018-10-19 | §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE | |
| Closed Violation Closed · 2022-11-16 | A | 2018-08-23 | § 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES THAT SHOULD BE FOLLOWED WHEN A GAS LEAK IS SUSPECTED | |
| Closed Violation Closed · 2022-11-16 | A | 2018-08-23 | § 27-2104 ADM CODE POST AND MAINTAIN A PROPER SIGN ON WALL OF ENTRANCE STORY SHOWING THE REGISTRATION NUMBER ASSIGNED BY THE DEPARTMENT AND THE ADDRESS OF THE BUILDING. AT PUBLIC HALL, 1st STORY | |
| Closed Violation Closed · 2022-11-16 | B | 2018-08-23 | § 27-2005, 2007 ADM CODE AND DEPT. RULES AND REGULATIONS. REMOVE THE ENCUMBRANCE OBSTRUCTING EGRESS FROM FIRE ESCAPES CONSISTING OF AIR CONDITIONER INSTALLED IN WINDOW AT 2ND STORY BALCONY AT FRON OF BUILDING AT FIRE ESCAPE | |
| Closed Violation Closed · 2022-11-16 | A | 2018-08-23 | § 26-1103 ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGENCYS HOUSING INFORMATION GUIDE. A SAMPLE NOTICE CAN BE FOUND AT WWW.NYC.GOV/HPD. AT PUBLIC HALL, 1st STORY | |
| Closed Violation Closed · 2022-11-16 | A | 2018-08-23 | § 27-2046.1 HMC: POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, IN A COMMON AREA OF A CLASS A MULTIPLE DWELLING NEAR INSPECTION CERTIFICATE OR PROVIDE NOTICE TO TENANTS IN A PRIVATE DWELLING. AT P | |
| Closed Violation Closed · 2022-11-16 | A | 2018-08-23 | § 27-2053 ADM CODE POST SIGN ON WALL OF ENTRANCE STORY BEARING NAME, ADDRESS INCLUDING APARTMENT NUMBER IF ANY, AND TELEPHONE NUMBER OF SUPERINTENDENT, JANITOR OR HOUSEKEEPER. AT PUBLIC HALL, 1st STORY | |
| Closed Violation Dismissed · 2019-02-12 | I | 2017-11-29 | §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE | |
| Closed Violation Dismissed · 2019-02-12 | I | 2016-11-15 | §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE | |
| Closed Violation Closed · 2022-11-16 | B | 2008-08-20 | 2A | D26-10.01 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE INTERCOM SYSTEM 2 STY SOUTHWEST APT 2A. , SECTION '' '' |
| Closed Violation Closed · 2022-11-16 | A | 2006-09-12 | § 27-2104 ADM CODE POST AND MAINTAIN A PROPER SIGN ON WALL OF ENTRANCE STORY SHOWING THE REGISTRATION NUMBER ASSIGNED BY THE DEPARTMENT AND THE ADDRESS OF THE BUILDING. AT PUBLIC HALL, 1st STORY |
Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-06; data as of 2026-11-07
HPD complaints 1
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.
| Received | Status | Apt | Problem(s) | Outcome |
|---|---|---|---|---|
| 2026-06-26 | CLOSE | 2D | Unsanitary Condition – Pests | An HPD Inspector was not able to gain access to inspect this complaint. The Inspector left a card at the time of the inspection and a letter was sent from HPD after the inspection attempt to encourage |
Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-07; data as of 2026-11-07
311 requests (last 12 months) 8
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 |
|---|---|---|---|---|
| 2026-08-31 | NYPD | Illegal Parking – Blocked Bike Lane | Closed | 2026-08-31 |
| 2026-08-31 | TLC | For Hire Vehicle Complaint – Driver Complaint - Non Passenger | In Progress | — |
| 2026-07-05 | NYPD | Noise - Street/Sidewalk – Loud Music/Party | Closed | 2026-07-05 |
| 2026-06-26 | HPD | UNSANITARY CONDITION – PESTS | Closed | 2026-07-13 |
| 2026-06-26 | HPD | UNSANITARY CONDITION – PESTS | Closed | 2026-07-13 |
| 2026-05-31 | DPR | Damaged Tree – Tree Alive - in Poor Condition | In Progress | — |
| 2026-03-18 | DOHMH | Rodent – Rat Sighting | Closed | 2026-03-18 |
| 2026-03-10 | NYPD | Noise - Street/Sidewalk – Loud Music/Party | Closed | 2026-03-10 |
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-07; data as of 2026-11-07
Nearby properties
More in Prospect Heights: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
On St Johns Pl
- 356 St Johns Place (21 open items)
- 357 St Johns Place (37 open items)
- 352 St Johns Place (20 open items)
- 349 St Johns Place (58 open items)
- 365 St Johns Place (13 open items)
- 345 St Johns Place (43 open items)
- 369 St Johns Place (12 open items)
- 341 St Johns Place (140 open items)
- 340 St Johns Place (232 open items)
- 372 St Johns Place (55 open items)
Same tax block (1173)
- 203 Underhill Avenue (76 open items)
- 195 Underhill Avenue (11 open items)
- 362 Sterling Place (17 open items)
- 364 Sterling Place (five open items)
- 366 Sterling Place
- 368 Sterling Place (one open item)
- 370 Sterling Place
- 374 Sterling Place
- 376 Sterling Place
- 378 Sterling Place
All properties on St Johns Pl, 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