537 9th Avenue, Manhattan, NY 10018
BBL 1007370038 (Borough 1, Block 737, Lot 38) · BIN 1013000 · Last updated:
Summary · as of November 6, 2026
537 9th Avenue (Manhattan, NY 10018; tax lot BBL 1007370038) is a 3-unit mixed-use building with apartments and ground-floor commercial space (building class S3: mixed-use: three-family home with one store or office), built around 1900, on a 1,300 sq ft lot zoned C1-7A. City tax records list the owner as 537 9TH AVE, LLC; per ACRIS, a deed to this owner dated February 27, 2019 lists a price of $4,000,000. The Department of Finance's final market value for tax year 2027 is $2,972,000. As of November 6, 2026, NYC Open Data shows two DOB jobs with a permit issued but no sign-off, two active DOB violations and two OATH tickets with an unpaid balance. There was one 311 request 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
- 537 9TH AVE, LLC
- Building class
- S3 · Mixed-use: three-family home with one store or office
- Year built · units
- 1900 · 3 res.
- Lot area · zoning
- 1,300 sq ft · C1-7A
- Market value (DOF)
- $2,972,000 FY2027
- Last priced deed
- $4,000,000 · 2019-02-27
- BBL
- 1007370038
- BIN
- 1013000
- 2Open DOB jobs (permit issued, no sign-off)
- 2Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 2OATH tickets with unpaid balance
How to cite: NYC Property Facts, “537 9th Avenue, Manhattan, NY 10018 (BBL 1007370038)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/manhattan/537-9th-avenue-1007370038. 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)
- 537 9TH AVE, LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- S3 – Mixed-use: three-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
- 1900Often an estimate for older buildings.
- Floors
- 4
- Units
- 3 residential / 4 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,300 sq ft (20 ft × 65 ft)
- Building floor area
- 3,840 sq ft (incl. 940 sq ft commercial)
- Zoning
- C1-7A, HYThe zoning district sets what can be built and used here. Commercial district.
- Built vs. allowed density (FAR)
- 2.95 built / 6.02 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 1007370038 (Borough 1, Block 737, Lot 38) · BIN 1013000BBL 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)
- $2,972,000The 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
- $1,337,400The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $344,187Assessed value minus any exemptions.
- Tax class
- Tax class 2A – residential rental, 4–6 units
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $2,972,000 | $1,337,400 | 2A |
| 2026 | Final | $2,899,000 | $1,304,550 | 2A |
| 2025 | Final | $2,584,000 | $1,162,800 | 2A |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-06
Sales & deed history 9
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 |
|---|---|---|---|---|---|
| 2019-02-27 | DEED | $4,000,000 | 20 Maiden Lane Associates, Llc | 537 9th Ave, Llc | 2019031300711001 |
| 2004-08-05 | DEED | $1,525,000 | Ganezer, Murray; Ganezer, Eileen J | 20 Maiden Lane Associates Llc | 2004081102012001 |
| 1981-01-23 | DEED | $0 / not stated | 537 Ninth Ave Corp | Ganezer, Murray; Ganezer, Eileen | FT_1280008635928 |
| 1980-06-12 | DEED | $0 / not stated | Mid Divesting Corp | 537 Ninth Ave Corp | FT_1200008626520 |
| 1978-12-05 | DEED | $0 / not stated one deed covering 2 lots; price is for all of them | Mid-Central Properties | Weprin, Jack Tr; Leidesdore, Arthur D; Sanders, Martin | FT_1640008599064 |
| 1978-11-28 | DEED | $0 / not stated | Waprin, Jack; Leidesdorf, Arthur D; Sanders, Martin; Mid Central Prop Ltdeta | Mid Divesting Corp | FT_1970008598697 |
| 1973-07-03 | DEED | $0 / not stated one deed covering 5 lots; price is for all of them | Mohr, Lawrence J; Karter, Lawrence B | Mid Central Prop Ltd | FT_1700008522870 |
| 1971-09-13 | DEED | $0 / not stated | Grossman, George | Janice Equities Corp | FT_1510008493951 |
| 1971-09-13 | DEED | $0 / not stated | Janice Equities Corp | Mohr, Lawrence J; Karter, Lawrence B | FT_1530008493953 |
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 2 open of 8
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 · 2021-03-22 | M00476778-I1 DOB NOW | Alteration | 2021-03-12 | $13,000 |
| Permitted, not signed off PERMIT ISSUED - ENTIRE JOB/WORK · 1995-07-11 | 101058944 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 1995-06-15 | $20,000 |
| Not open LOC Issued · 2022-07-14 | M00763359-I1 DOB NOW | Alteration | 2022-06-23 | $5,000 |
| Not open LOC Issued · 2022-10-19 | M00491868-I1 DOB NOW | Alteration | 2021-03-24 | $2,000 |
| Not open SIGNED OFF · 2014-12-26 | 121459778 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2012-12-12 | $3,000 |
| Not open SIGNED OFF · 2015-06-01 | 121142860 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2012-07-06 | $60,000 |
| Not open SIGNED OFF · 2000-08-08 | 102610444 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2000-05-04 | $5,500 |
| Not open SIGNED OFF · 1996-09-05 | 100968339 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 1994-12-15 | $15,000 |
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 17
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 |
|---|---|---|---|---|
| 2022-07-13 | 2023-04-09 | M00763359-I1 DOB NOW | Mechanical Systems FILING TO OBTAIN EQUIPMENT USE PERMITS FOR (3) EXISTING AC COMPRESSORS ON ROOF. NO NEW WORK IS PROPOSED. | Signed-off |
| 2021-03-30 | 2022-03-30 | M00491868-I1 DOB NOW | Construction Fence Filing to Install Temporarily Fence for store front at the existing Commercial space. | Signed-off |
| 2021-03-22 | 2022-03-22 | M00476778-I1 DOB NOW | General Construction Filing for minor interior work at the existing Restaurant, flooring, finishes and carpentry. No change in Use egress or occupancy. | Permit Issued |
| 2015-04-08 | 2016-04-07 | 121142860 BIS | Plumbing / Plumbing | ISSUED (renewal) |
| 2014-06-27 | 2015-06-27 | 121459778 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2012-12-24 | 2013-12-24 | 121459778 BIS | Equipment work / Fire suppression | ISSUED (initial) |
| 2012-08-15 | 2013-08-15 | 121142860 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2012-08-10 | 2013-05-20 | 121142860 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2012-08-10 | 2013-05-20 | 121142860 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (initial) |
| 2000-06-22 | 2001-06-04 | 102610444 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2000-06-22 | 2000-12-31 | 102610444 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (initial) |
| 1995-07-11 | 1996-04-20 | 101058944 BIS | Plumbing / Plumbing | ISSUED (initial) |
Showing 12 of 17 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 2 active of 5
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 VPW-VIOLATION UNSERVED ECB-WORK WITHOUT PERMIT-ACTIVE | 1996-04-29 | C-CONSTRUCTION OTHER OPTIONAL | VPW042996C04B01 | |
| Active VP-VIOLATION UNSERVED ECB-ACTIVE | 1996-04-10 | C-CONSTRUCTION OTHER OPTIONAL | VP041096CB4SI01 | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2023-10-04 | AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE | FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION | V*100423AEUHAZ100192 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1996-04-29 | C-CONSTRUCTION OTHER OPTIONAL | V*042996C04B01 | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1996-04-10 | C-CONSTRUCTION OTHER OPTIONAL | V*041096CB4SI01 |
Source: DOB Violations — city dataset updated 2026-11-05; data as of 2026-11-06
ECB violations (DOB) 0 active of 5
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: STIPULATION/IN-VIO · Certification: CERTIFICATE ACCEPTED | 1990-08-09 | Non-Hazardous | ALTERED BUILDING OCCUPIED WITHOUT A VALID CERTIFICATE OF OCCUPANCY ALT 825-88 NEW REAR EXTENSION ADDED TO 1 STORY RETAIL STORE CARPET STORE. REMEDY OBTAIN VALID CERTIFICATE OF OCCUPANCY | $285 / $285 / $0 | 34044201M |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2007-06-16 | Non-Hazardous | FAILURE TO MAINTAIN EXTERIOR BLDG WALL. DEFECT NOTED: APPROX 1/2"WIDE X 3'-0 LONG CRACKS OPEN UP & BRICK MOROTR'S JOINTS ARE MISSING NOTED LOCATION: FRONT FACADE AT 2 & 3 FLS ABOVE SOUTH SIDE WINDOWS LINTEL. | $350 / $350 / $0 | 34572497J |
| Resolved Hearing: STIPULATION/IN-VIO · Certification: CERTIFICATE ACCEPTED | 1989-01-30 | Non-Hazardous | ALTERED BUILDING OCCUPIED WITHOUT A VALID C OF O UNDER ALTERATION #825/88 FOR THRU OLUT REMEDEY DISCONTINUE THE ILLEGAL OCCUPANCY UNTIL A NEW C OF O HAS BEEN OBTAINED FORTHWITH | $250 / $250 / $0 | 34020709R |
| Resolved Hearing: STIPULATION/IN-VIO · Certification: CERTIFICATE ACCEPTED | 1989-01-30 | Non-Hazardous | WORK WITHOUT A PERMIT. WORK NOTED- HAVING ERECTED AN ONE(1) STORY EXTENSION AT REAR ABOUT 14'-0" DEEP 20'-0" WIDE 13'-2" HIGHT WITH 10" CONCRETE BLOCKS,STRUCTURE & PLYWOOD. RDMY-OBTAIN A PERMIT & APPROVALS | $250 / $250 / $0 | 34020710Y |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2023-05-15 | CLASS - 1 | OBSERVED GAS PIPING IN PUBLIC HALLWAY ON THE THIRD FLOOR WHICH CONTRARY TO NYC CODE (14.3.3) C26-1325.0 FGH -E2 ANG FGC404.1. GAS PIPING IS PROHIBITED IN PUBLIC HALLWAYS. ALSO HAVING FUTURE ON GAS LINE WHICH CO | $1,250 / $1,250 / $0 | 39086317L |
Source: DOB ECB Violations — city dataset updated 2026-11-05; data as of 2026-11-06
OATH tickets (all agencies) 2 unpaid of 43
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 # |
|---|---|---|---|---|---|---|
| Unpaid balance Default DEFAULTED · DEFAULTED | 2025-05-19 | Police Department | OPEN CONTAINER CONSUMPTION OF ALCOHOL ON STREETS | SLIVA | $25 / $0 / $25 | 0220112357 |
| Unpaid balance Default DOCKETED · DEFAULTED | 2022-01-03 | Fire Department Of Nyc | AFFIDAVITS, DESIGN INSTALLATION DOCUMENTS, AND OTHER DOCUMENTATION | 537 9TH AVE FOOD CORP | $1,000 / $0 / $1,000 | 011755025Z |
| No balance due PAID IN FULL | 2026-04-30 | Sanitation Others | FAIL TO RECYCLE ORGANIC WASTE 9 OR MORE DWELLING UNITS 1ST | 537 9TH AVE LLC | $100 / $100 / $0 | 049681497R |
| No balance due PAID IN FULL · SETTL IN-VIO | 2025-01-27 | Dos - Enforcement Agents | IMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1ST | 537 9TH AVE LLC | $300 / $181 / $0 | 048773385Y |
| No balance due PAID IN FULL · SETTL IN-VIO | 2024-08-13 | Sanitation Others | STORAGE OF RECEPTACLES PLACED OUT PRIOR TO 8PM WITHOUT A RECEPTACLE | 537 9TH AVE LLC | $300 / $194 / $0 | 048602943N |
| No balance due PAID IN FULL · SETTL IN-VIO | 2023-06-12 | Sanitation Others | STORAGE OF RECEPTACLES PLACED OUT PRIOR TO 8PM WITHOUT A RECEPTACLE | 537 9TH AVE LLC | $300 / $215 / $0 | 046983040L |
| No balance due PAID IN FULL · IN VIOLATION | 2023-05-15 | Dept. Of Buildings | FAILURE TO MAINTAIN BUILDING IN CODE-COMPLIANT MANNER | 537 9TH AVE LLC | $1,250 / $1,250 / $0 | 039086317L |
| No balance due PAID IN FULL | 2020-05-05 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | 537 9TH AVE LLC | $100 / $100 / $0 | 0210511611 |
| No balance due PAID IN FULL | 2020-03-10 | Sanitation Others | LOOSE RUBBISH | 537 9TH AVE LLC | $100 / $100 / $0 | 0210516442 |
| No balance due PAID IN FULL | 2014-07-15 | Dos - Enforcement Agents | SIDEWALK OBSTRUCTION | BETTE BEING INC | $100 / $200 / $-100 | 043504130P |
| No balance due Default PAID IN FULL · DEFAULTED | 2013-03-29 | Dep - Bureau Of Cust. Service | NO READING RECEPTACLE FOR REMOTE PAD | PLUMBER ARIANA CONTRACTING INC | $1,000 / $1,467 / $0 | 0181746218 |
| No balance due Default PAID IN FULL · DEFAULTED | 2013-03-29 | Dep - Bureau Of Cust. Service | IMPROPER SETTING OF METER | PLUMBER ARIANA CONTRACTING INC | $1,000 / $1,467 / $0 | 0181746209 |
Showing 12 of 43 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.
- HPD building ID
- 4744
- Last registered
- 2026-10-07
- Registration valid until
- 2027-09-01 CurrentRegistrations must be renewed every year.
| Role | Name | Company | Business city |
|---|---|---|---|
| Agent | Peter Meskouris | 537 9TH AVE LLC | East Elmhurst, Ny |
| Corporateowner | 537 9TH AVE LLC | East Elmhurst, Ny | |
| Shareholder | Peter Meskouris | East Elmhurst, Ny | |
| Headofficer | Chris Meskouris | East Elmhurst, Ny | |
| Officer | Chris Meskouris | East Elmhurst, Ny | |
| Sitemanager | Peter Meskouris |
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 4
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 |
|---|---|---|---|---|
| Closed Violation Dismissed · 2025-06-09 | A | 2025-06-04 | (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 · 2024-04-12 | A | 2024-04-01 | (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 · 2021-04-16 | A | 2021-04-01 | (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 · 2016-12-02 | I | 2016-10-24 | §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 |
Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-05; data as of 2026-11-06
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 |
|---|---|---|---|---|
| 2024-12-26 | CLOSE | 2 | Heat/Hot Water – Apartment Only | The Department of Housing Preservation and Development was not able to gain access to your apartment or others in the building to inspect for a lack of heat or hot water. The complaint has been closed |
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) 1
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 |
|---|---|---|---|---|
| 2026-01-16 | DOT | Sidewalk Condition – Sidewalk Grating - Defective | Closed | 2026-01-20 |
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-06; data as of 2026-11-06
Nearby properties
More in Midtown-Times Square: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
On 9 Ave
- 538 9th Avenue (45 open items)
- 536 9th Avenue (54 open items)
- 535 9th Avenue (three open items)
- 539 9th Avenue (eight open items)
- 534 9th Avenue (26 open items)
- 533 9th Avenue (19 open items)
- 541 9th Avenue (142 open items)
- 532 9th Avenue (85 open items)
- 531 9th Avenue (eight open items)
- 530 9th Avenue (12 open items)
Same tax block (737)
- West 39th Street (one open item)
- West 39th Street
- 413 West 39th Street (eight open items)
- 411 West 39th Street (10 open items)
- 407 West 39th Street (nine open items)
- 405 West 39th Street (one open item)
- 523 9th Avenue (15 open items)
- 525 9th Avenue (10 open items)
- 527 9th Avenue (17 open items)
- 529 9th Avenue (10 open items)
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