464 Eastern Parkway, Brooklyn, NY 11225
BBL 3012680009 (Borough 3, Block 1268, Lot 9) · BIN 3032894 · Last updated:
Summary · as of October 31, 2026
464 Eastern Parkway (Brooklyn, NY 11225; tax lot BBL 3012680009) is a 16-unit walk-up apartment building (building class C1: walk-up apartments, more than six families, no stores), built around 1913, on a 6,517 sq ft lot zoned R6. City tax records list the owner as D MESTSI RLTY INC. The Department of Finance's final market value for tax year 2027 is $1,547,000. As of October 31, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off, two active DOB violations and four open HPD violations. There were 32 311 requests in the past 12 months and nine HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- D MESTSI RLTY INC
- Building class
- C1 · Walk-up apartments, more than six families, no stores
- Year built · units
- 1913 · 16 res.
- Lot area · zoning
- 6,517 sq ft · R6
- Market value (DOF)
- $1,547,000 FY2027
- Last priced deed
- —
- BBL
- 3012680009
- BIN
- 3032894
- 1Open DOB jobs (permit issued, no sign-off)
- 2Active DOB violations
- 0Active ECB violations
- 4Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “464 Eastern Parkway, Brooklyn, NY 11225 (BBL 3012680009)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/464-eastern-parkway-3012680009. 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)
- D MESTSI RLTY INCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- C1 – Walk-up apartments, more than six families, no storesThe 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
- 1913Often an estimate for older buildings.
- Floors
- 4
- Units
- 16 residential / 16 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 6,517 sq ft (49 ft × 133 ft)
- Building floor area
- 18,032 sq ft
- Zoning
- R6The zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 2.77 built / 2.43 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 3012680009 (Borough 3, Block 1268, Lot 9) · BIN 3032894BBL 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 2026-11-01; 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)
- $1,547,000The 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
- $696,150The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $579,960Assessed value minus any exemptions.
- Tax class
- Tax class 2 – residential, 4+ units
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $1,547,000 | $696,150 | 2 |
| 2026 | Final | $1,542,000 | $693,900 | 2 |
| 2025 | Final | $981,000 | $441,450 | 2 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-01
Sales & deed history 3
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 |
|---|---|---|---|---|---|
| 1976-11-10 | DEED | $0 / not stated | 217 East 4th St Corp | D Metsi Rlty Inc | BK_7630088300980 |
| 1975-09-24 | DEED | $0 / not stated | Fonvil Carida | 217 E 4st Corp | BK_7530080401160 |
| 1970-09-01 | DEED | $0 / not stated | Saver Fred | Fonvil Carida | BK_7030043200920 |
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-01; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-01; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-01
DOB job filings 1 open of 1
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 - ENTIRE JOB/WORK · 2012-09-05 | 320509446 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2012-07-12 | $10,000 |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-10-31; data as of 2026-11-01; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31
Work permits 4
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 |
|---|---|---|---|---|
| 2012-09-05 | 2013-08-13 | 320509446 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2012-09-05 | 2013-08-13 | 320509446 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (renewal) |
| 2012-07-19 | 2012-09-01 | 320509446 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (initial) |
| 2012-07-19 | 2012-09-01 | 320509446 BIS | Equipment work / Other / general construction | ISSUED (initial) |
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-10-31; data as of 2026-11-01; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31
DOB violations 2 active of 4
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 | 2009-01-01 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V010109LL629120213 | |
| Active V-DOB VIOLATION - ACTIVE | 1993-08-16 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V081693LL629136153 | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2011-12-13 | LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED | VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2010 INSPECTION REPORT | V*121311LBLVIO09280 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1997-02-10 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V*021097LL629119908 |
Source: DOB Violations — city dataset updated 2026-10-31; data as of 2026-11-01
ECB violations (DOB) 0 active of 1
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 | 2018-06-04 | CLASS - 2 | 5B,15,25A,34B,50,50A,50B,50C,50D. 50-COLD WATER THERMO LOOP MISSING FROM MXING VALVE; 50A-VALVE LEAKING ON #1 COIL; 50B-HW TEMPERATURE GAUGE MISSING FROM MXING VALVE; 50C-CHECK VALVE MISSING FROM HAND FEED AND | $312 / $312 / $0 | 32096916H |
Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-01
OATH tickets (all agencies) 0 unpaid of 46
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 | 2026-06-03 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST | D MESTSI RLTY INC | $300 / $300 / $0 | 0803862227 |
| No balance due Default PAID IN FULL · DEFAULTED | 2026-03-30 | Sanitation Others | DIRTY SIDEWALK | D MESTSI RLTY INC | $80 / $80 / $0 | 049620128M |
| No balance due PAID IN FULL | 2025-10-11 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | D MESTSI RLTY INC | $50 / $50 / $0 | 049409486Z |
| No balance due PAID IN FULL | 2025-05-30 | Sanitation Others | SPILLAGE FROM A RECEPTACLE 1ST OFFENSE | D MESTSI RLTY INC | $100 / $100 / $0 | 049116514H |
| No balance due Default PAID IN FULL · DEFAULTED | 2025-04-04 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST | C O BEAVIN LAWRENCE | $330 / $330 / $0 | 0803440550 |
| No balance due PAID IN FULL | 2025-01-31 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | D MESTSI RLTY INC | $50 / $50 / $0 | 048915259Y |
| No balance due PAID IN FULL | 2024-11-27 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | D MESTSI RLTY INC | $50 / $50 / $0 | 048715081J |
| No balance due PAID IN FULL | 2024-10-19 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 2ND | D MESTSI RLTY INC | $600 / $600 / $0 | 0803226995 |
| No balance due PAID IN FULL | 2024-05-04 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST | D MESTSI RLTY INC | $300 / $300 / $0 | 0803055267 |
| No balance due PAID IN FULL | 2024-05-03 | Sanitation Others | DIRTY SIDEWALK | D MESTSI RLTY INC | $50 / $50 / $0 | 048320746Z |
| No balance due PAID IN FULL · SETTL IN-VIO | 2024-04-24 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | D MESTSI RLTY INC | $300 / $181 / $0 | 048320725J |
| No balance due HEARING COMPLETED · DISMISSED | 2023-02-07 | Dos - Enforcement Agents | IMPROPER MISUSED CURBSIDE RECYCLING CONTAINER 9+ DWELLING UNITS | D MESTSI RLTY INC | $0 / $0 / $0 | 047763651M |
Showing 12 of 46 records. The API and the source dataset have the full list.
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-01; data as of 2026-11-01
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
- 287843
- Last registered
- 2026-09-16
- Registration valid until
- 2027-09-01 CurrentRegistrations must be renewed every year.
| Role | Name | Company | Business city |
|---|---|---|---|
| Corporateowner | D. METSI INC | Brooklyn, Ny | |
| Sitemanager | Martin Highland | ||
| Agent | Beavin Lawrence | D. METSI REALTY INC | Brooklyn, Ny |
| Headofficer | Beavin Lawrence | Brooklyn, Ny | |
| Officer | Beavin Lawrence | Brooklyn, Ny |
Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-10-28; data as of 2026-11-01; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-01
HPD housing-code violations 4 open of 14
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 Invalid Certification · 2026-03-27 | C | 2026-03-10 | 4C | § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES AT DOOR IN THE ENTRANCE LOCATED AT APT 4C, 4th STORY, 2nd APARTMENT FROM EAST AT SOUTH |
| Open Nov Sent Out · 2025-12-10 | B | 2025-12-10 | § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE BUILDING ENTRANCE DOOR FRAME. AT PUBLIC HALL | |
| Open Nov Sent Out · 2019-08-13 | B | 2019-08-13 | 2D | § 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE ELECTRIC BELL BUZZER INTERCOM SYSTEM IN THE ENTRANCE LOCATED AT APT 2D, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH |
| Open Nov Sent Out · 2019-08-13 | A | 2019-08-13 | § 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 Dismissed · 2026-10-19 | B | 2026-06-25 | 2D | § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE WOOD BASE CABINET AT SINK IN THE KITCHEN LOCATED AT APT 2D, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH |
| Closed Violation Dismissed · 2026-06-08 | C | 2026-03-10 | 4C | HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4C, 4th STORY, 2nd APARTMENT FROM EAST AT SOUTH |
| Closed Violation Closed · 2026-04-15 | C | 2026-03-10 | § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES AT VESTIBULE DOOR , 1st STORY | |
| Closed Violation Dismissed · 2026-03-04 | C | 2025-12-10 | § 27-2005 ADM CODE PROVIDE HEAVY DUTY MORTISE LOCK AND ASSEMBLY FOR BUILDING ENTRANCE DOOR FROM THE STREET AT PUBLIC HALL | |
| Closed Violation Closed · 2019-09-07 | C | 2019-08-13 | 2D | § 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE DOOR IN THE ENTRANCE LOCATED AT APT 2D, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH |
| Closed Violation Dismissed · 2018-10-31 | I | 2018-10-17 | §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 · 2016-04-13 | C | 2016-03-15 | § 27-2005 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF UNCAPED SHUTOFF RADIATOR VALVE AT WEST WALL AT PUBLIC HALL, 1st STORY | |
| Closed Violation Dismissed · 2016-05-23 | B | 2016-02-09 | 1D | SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF ROACHES LOCATED AT APT 1D, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH |
| Closed Violation Dismissed · 2016-05-23 | B | 2016-02-09 | 1D | SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE LOCATED AT APT 1D, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH |
| Closed Violation Dismissed · 2015-12-07 | A | 2015-07-08 | 1D | SECTION 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE HEAVY DUTY LOCK AT DOOR IN THE ENTRANCE LOCATED AT APT 1D, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH |
Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-10-31; data as of 2026-11-01
HPD complaints 9
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 |
|---|---|---|---|---|
| 2026-10-14 | CLOSE | 4C | Door/Window – Door | HPD called the telephone number on file for this complaint. Someone at that number indicated that the condition was corrected. The complaint has been closed. Please submit a new service request with |
| 2026-06-18 | CLOSE | 2D | General – Cabinet Plumbing – Radiator | HPD inspected this condition so the complaint has been closed. Violations were issued. The law provides the property owner time to correct the condition(s). Violation descriptions and the dates for t |
| 2026-05-26 | CLOSE | 2D | Paint/Plaster – Wall | HPD attempted to conduct an inspection in response to this complaint, but was unable to complete the inspection. Please submit a new service request with 311 if the condition still exists. For more in |
| 2026-04-06 | CLOSE | 2D | Paint/Plaster – Wall | HPD attempted to conduct an inspection in response to this complaint, but was unable to complete the inspection. Please submit a new service request with 311 if the condition still exists. For more in |
| 2026-03-19 | CLOSE | 2D | Paint/Plaster – Wall | HPD attempted to conduct an inspection in response to this complaint, but was unable to complete the inspection. Please submit a new service request with 311 if the condition still exists. For more in |
| 2026-02-11 | CLOSE | 4C | Unsanitary Condition – Mold Paint/Plaster – Ceiling Water Leak – Damp Spot Electric – Outlet/Switch General – Bell/Buzzer/Intercom Plumbing – Bathtub/Shower Water Leak – Slow Leak | The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. |
| 2025-12-03 | CLOSE | 4C | Heat/Hot Water – Apartment Only | HPD responded to a complaint of no heat or hot water in the building. An occupant of the building confirmed heat and hot water had been restored when the Inspector attempted to conduct the inspection |
| 2024-04-09 | CLOSE | 4A | Heat/Hot Water – Apartment Only Plumbing – Water Supply | The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. |
| 2019-08-05 | CLOSE | 2D | Door/Window – Door | HPD inspected this condition so the complaint has been closed. Violations were issued. The law provides the property owner time to correct the condition(s). Violation descriptions and the dates for t |
Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-01; data as of 2026-11-01
311 requests (last 12 months) 32
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 |
|---|---|---|---|---|
| 2026-10-26 | NYPD | Noise - Residential – Loud Music/Party | Closed | 2026-10-26 |
| 2026-10-26 | NYPD | Noise - Residential – Banging/Pounding | Closed | 2026-10-26 |
| 2026-10-22 | NYPD | Noise - Residential – Loud Music/Party | Closed | 2026-10-22 |
| 2026-10-14 | HPD | DOOR/WINDOW – DOOR | Closed | 2026-10-17 |
| 2026-10-08 | NYPD | Noise - Street/Sidewalk – Loud Music/Party | Closed | 2026-10-08 |
| 2026-10-02 | NYPD | Noise - Residential – Loud Music/Party | Closed | 2026-10-02 |
| 2026-09-20 | NYPD | Noise - Residential – Loud Music/Party | Closed | 2026-09-20 |
| 2026-07-30 | NYPD | Noise - Residential – Banging/Pounding | Closed | 2026-07-31 |
| 2026-07-26 | NYPD | Noise - Residential – Banging/Pounding | Closed | 2026-07-26 |
| 2026-07-23 | NYPD | Noise - Residential – Banging/Pounding | Closed | 2026-07-23 |
Showing 10 of 32 records. The API and the source dataset have the full list.
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-01; data as of 2026-11-01
Nearby properties
On Eastern Pkwy
- 465 Eastern Parkway (seven open items)
- 461 Eastern Parkway
- 469 Eastern Parkway (18 open items)
- 459 Eastern Parkway
- 458 Eastern Parkway (30 open items)
- 470 Eastern Parkway (44 open items)
- 457 Eastern Parkway (16 open items)
- 456 Eastern Parkway (four open items)
- 455 Eastern Parkway
- 453 Eastern Parkway (43 open items)
Same tax block (1268)
- 1195 Union Street (20 open items)
- 458 Eastern Parkway (30 open items)
- 470 Eastern Parkway (44 open items)
- 476 Eastern Parkway (24 open items)
- 486 Eastern Parkway (56 open items)
- 500 Eastern Parkway (117 open items)
- 506 Eastern Parkway (10 open items)
- 512 Eastern Parkway (27 open items)
- 516 Eastern Parkway (15 open items)
- 518 Eastern Parkway (111 open items)
All properties on Eastern Pkwy, Brooklyn · All of Brooklyn 11225 (Prospect Lefferts Gardens-Wingate)
Open-item counts as of October 31, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs