443 Waverly Avenue, Brooklyn, NY 11238
BBL 3019620003 (Borough 3, Block 1962, Lot 3) · BIN 3056017 · Last updated:
Summary · as of November 6, 2026
443 Waverly Avenue (Brooklyn, NY 11238; tax lot BBL 3019620003) is a 3-unit walk-up apartment building (building class C0: three-family walk-up), built around 1868, on a 1,416 sq ft lot zoned R6B. City tax records list the owner as JUTAGIR, AVINAND; per ACRIS, a deed to this owner dated June 12, 2014 lists a price of $1,975,000. The Department of Finance's final market value for tax year 2027 is $3,922,000. As of November 6, 2026, NYC Open Data shows three DOB jobs with a permit issued but no sign-off and two active DOB violations. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- JUTAGIR, AVINAND
- Building class
- C0 · Three-family walk-up
- Year built · units
- 1868 · 3 res.
- Lot area · zoning
- 1,416 sq ft · R6B
- Market value (DOF)
- $3,922,000 FY2027
- Last priced deed
- $1,975,000 · 2014-06-12
- BBL
- 3019620003
- BIN
- 3056017
- 3Open DOB jobs (permit issued, no sign-off)
- 2Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “443 Waverly Avenue, Brooklyn, NY 11238 (BBL 3019620003)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/443-waverly-avenue-3019620003. 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)
- JUTAGIR, AVINANDThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- C0 – Three-family walk-upThe 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
- 1868Often an estimate for older buildings. Major alteration recorded: 2019.
- Floors
- 3
- Units
- 3 residential / 3 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,416 sq ft (19 ft × 74.5 ft)
- Building floor area
- 3,040 sq ft
- Zoning
- R6BThe zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 2.15 built / 2.00 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
- Clinton Hill Historic DistrictExterior changes in a historic district need Landmarks Preservation Commission approval.
- Identifiers
- BBL 3019620003 (Borough 3, Block 1962, Lot 3) · BIN 3056017BBL 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)
- $3,922,000The 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
- $235,320The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $45,875Assessed 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 | $3,922,000 | $235,320 | 1 |
| 2026 | Final | $4,503,000 | $270,180 | 1 |
| 2025 | Final | $3,557,000 | $213,420 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-06
Sales & deed history 2
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 |
|---|---|---|---|---|---|
| 2014-06-12 | DEED | $1,975,000 | White, Henry Jr.; White, Geraldine | Jutagir, Avinand; Rusu, Irene | 2014061800602001 |
| 1985-03-21 | DEED | $0 / not stated | Beachum, Thelma M; Beachum, James A | White, Henry Jr; White, Geraldine | FT_3810001081981 |
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 3 open of 3
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 · 2026-08-31 | B01410869-I1 DOB NOW | Alteration | 2026-06-17 | $25,000 |
| Permitted, not signed off PERMIT ISSUED - ENTIRE JOB/WORK · 2026-10-14 | 321826075 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2018-08-20 | $212,900 |
| Permitted, not signed off PERMIT ISSUED - ENTIRE JOB/WORK · 2021-07-02 | 321464241 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2016-11-15 | $27,000 |
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 26
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 |
|---|---|---|---|---|
| 2026-10-14 | 2027-10-14 | 321826075 BIS | Plumbing / Plumbing | ISSUED (renewal) |
| 2026-09-15 | 2027-08-01 | 321826075 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2026-08-31 | 2027-08-01 | B01410869-I1 DOB NOW | Mechanical Systems SUBSEQUENT FILING FOR MECHANICAL WORK IN CONJUNCTION WITH JOB#321826075. MECHANICAL WORK AS PER PLAN. NO CHANGE IN EGRESS, USE OR OCCUPANCY. | Permit Issued |
| 2026-04-01 | 2026-08-01 | 321826075 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2025-12-05 | 2026-04-01 | 321826075 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2022-01-19 | 2023-01-15 | 321826075 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2022-01-19 | 2023-01-15 | 321826075 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2022-01-19 | 2023-01-15 | 321464241 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2021-12-10 | 2022-12-10 | 321826075 BIS | Plumbing / Plumbing | ISSUED (renewal) |
| 2021-07-02 | 2022-07-02 | 321464241 BIS | Plumbing / Plumbing | ISSUED (renewal) |
| 2021-01-22 | 2022-01-14 | 321826075 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2021-01-22 | 2022-01-14 | 321826075 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
Showing 12 of 26 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 V-DOB VIOLATION - ACTIVE | 2022-07-06 | P-PLUMBING NONE | STOP ALL PLUMBING WORK UNDER ABOVE MENTIONED PERMIT IMMEDIATELY THE BOROUGH COMMISSIONER INTENDS TO REVOKE ALL PLUMBING APPROVALS AND PERMIT ISSUED UNDER JOB # 321464241 DUE TO SUSPENSION OF LICENSE MASTER PLUMBER # 000945 | V070622P22-02095 |
| Active V-DOB VIOLATION - ACTIVE | 2022-07-06 | P-PLUMBING NONE | STOP ALL PLUMBING WORK UNDER ABOVE MENTIONED PERMIT IMMEDIATELY THE BOROUGH COMMISSIONER INTENDS TO REVOKE ALL PLUMBING APPROVALS AND PERMIT ISSUED UNDER JOB # 321826075 DUE TO SUSPENSION OF LICENSE MASTER PLUMBER # 000945 | V070622P22-02094 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2022-12-27 | C-CONSTRUCTION OTHER OPTIONAL | BOROUGH COMMISSIONER HAS ORDERED ALL WORK STOPPED UNDER PERMIT #321826075 DUE TO SPECIAL INSPECTOR WITHDRAWAL. UNABLE TO GAIN ACCESS, SITE CLOSED. WORK APPEARS TO BE 0% COMPLETE. | V*122722C22-04548 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2022-12-27 | C-CONSTRUCTION OTHER OPTIONAL | BOROUGH COMMISSIONER HAS ORDERED ALL WORK STOPPED UNDER PERMIT #321826075 DUE TO SPECIAL INSPECTOR WITHDRAWAL. UNABLE TO GAIN ACCESS, SITE CLOSED. WORK APPEARS TO BE 0% COMPLETE. | V*122722C22-04549 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2017-03-09 | C-CONSTRUCTION OTHER OPTIONAL | V*030917C0205DY |
Source: DOB Violations — city dataset updated 2026-11-05; data as of 2026-11-06
ECB violations (DOB) 0 active of 9
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 | 2019-12-09 | CLASS - 2 | CONSTRUCTION SUPERINTENDENT FIALED TO DO DUTIES PER CODE.AT TIME OF INSPECTION ON 4 STORY ALTERATION SITE IN WHICH THE 3RD AND 4TH FLOORS ARE OCCUPTED OBSERVED NO ENFORCEMENT OF TENANT PROTECTION PLAN IN PLACE | $2,500 / $625 / $0 | 35464524Y |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2019-12-10 | CLASS - 1 | BC3303103-ENFORCEMENT OF TENANT PROTECTOIN PLAN.AT TIME OF INSPECTION ON A 4 STORY ALTERATION SITE CURRENTLY OCCUPIED ON FLOOR 3&4 OBSERVED THAT NO SAFETY MEASURES WERE IN PLACE AS REQUIRED BY TENANT PROTECT PL | $625 / $156 / $0 | 35464522K |
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2019-12-05 | CLASS - 2 | REQUIRED DOCUMENTS. NO TR-1 SUBMITTED STIPULATING STRUCTURAL STEEL,OR WELDING. PLANS INDICATE WELDING NEW COLUMNS TO HEADER BEAM. NO DESIGN DRAWING OR SHORING SCHEDULE PROVIDED FOR TEMPORARY SHORING IN CELLAR | $0 / $0 / $0 | 35464462H |
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2019-12-05 | CLASS - 2 | CONTRARY TO PLAN. OBSERVED HEADER BEAM & COLUMN INSTALLATION IN CELLAROF OCCUPIED LANDMARK STRUCTURE. ACCORDING TO PLANS PROVIDED COLUMN THAT WAS TO REMAIN HAD BEEN REMOVED. NEW COLUMN INSTALLED WHICH WAS NOT | $0 / $0 / $0 | 35457592K |
| Resolved Hearing: DISMISSED · Certification: N/A - DISMISSED | 2016-12-01 | CLASS - 1 | FILED A CERTIFICATE,FORM, APPLICATION ETC CONTAINING A MATERIALS FALSESTATEMENT(S) ON 12-1-16 AT APPRX 4PM I OBSERVED THAT LMD FILED AN E- FILE LAA #340442710 WHICH IS NOT ALLOWED TO BE E-FILED UNDER PROHIBITE | $0 / $0 / $0 | 35203958X |
| Resolved Hearing: DISMISSED · Certification: CERTIFICATE ACCEPTED | 2022-04-06 | CLASS - 2 | WORK NOT CONFORM TO AP CONST. DOCUMENTS : SOE-100.1 OF AP UNDERPINNING NOTES CLEARLY STATES PROVIDE UNDERPINNING AS REQUIRED TO PERMANENTLY SUPPORT ALL EXISTING ADJACENT STRUCTURES WHICH IS THE GC RESPONSIBILIT | $0 / $0 / $0 | 39059788Y |
| Resolved Hearing: DISMISSED · Certification: N/A - DISMISSED | 2016-12-01 | CLASS - 1 | FILED A CERTIFICATE,FORM, APPLICATION ETC CONTAINING A MATERIALS FALSESTATEMENT(S) ON 12-1-16 AT APPRX 4PM I OBSERVED THAT LMD FILED AN E- FILE LAA #340442747 WHICH IS NOT ALLOWED TO BE E-FILED UNDER PROHIBITE | $0 / $0 / $0 | 35203959H |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2019-12-05 | CLASS - 2 | LOGS. AT TIME OF INSPECTION C.S. WAS NOT ON SITE. OWNER OF PROPERTY ADDRESSED MY QUESTION TO THE BEST OF HIS ABILITIES. SPOKE W/C.S. ON PHONE & INFORMED ME THAT LOGS WERE NOT ON SITE. NO LOGS PROVIDED TO IDENTI | $2,500 / $2,572 / $0 | 35457593M |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2019-12-10 | CLASS - 2 | FAILURE TO SAFEGUARD ALL PERSONS AND PROPERTY AFFECTED BY CONSTRUCTIONOPERATIONS.AT TIME OF INSPECTION ON A 4 STORY ALTERATION SITE CURRENTLY OCCUPTED ON FLOORS 3&4 OBSERVED NO SAFETY MEASURES IN PLACE PREVENTI | $5,000 / $1,250 / $0 | 35464523M |
Source: DOB ECB Violations — city dataset updated 2026-11-05; data as of 2026-11-06
OATH tickets (all agencies) 0 unpaid of 15
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 | 2024-10-19 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | JUTAGIR AVINAND | $50 / $50 / $0 | 048475197L |
| No balance due PAID IN FULL | 2022-05-12 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | JUTAGIR AVINAND | $50 / $50 / $0 | 047400009M |
| No balance due HEARING COMPLETED · DISMISSED | 2022-04-06 | Dept. Of Buildings | WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCUMENTS AMENDMENTS | JOHN GOMEZ | $0 / $0 / $0 | 039059788Y |
| No balance due PAID IN FULL · IN VIOLATION | 2019-12-10 | Dept. Of Buildings | FAILURE TO SAFEGUARD ALL PERSONS AND PROPERTY AFFECTED BY CONSTRUCTION | COMPLEX DEVELOPMENT INC | $5,000 / $1,250 / $0 | 035464523M |
| No balance due PAID IN FULL · IN VIOLATION | 2019-12-10 | Dept. Of Buildings | MISCELLANEOUS VIOLATIONS | COMPLEX DEVELOPMENT INC | $625 / $156 / $0 | 035464522K |
| No balance due PAID IN FULL · IN VIOLATION | 2019-12-09 | Dept. Of Buildings | CONSTRUCTION SUPERINTENDENT FAILED TO PERFORM DUTIES PER CODE | CARLOS RAMIREZ MORALES | $2,500 / $625 / $0 | 035464524Y |
| No balance due PAID IN FULL · IN VIOLATION | 2019-12-05 | Dept. Of Buildings | CONSTRUCTION SUPERINTENDENT FAILED TO PERFORM DUTIES PER CODE | CARLOS RAMIREZ MORALES | $2,500 / $2,572 / $0 | 035457593M |
| No balance due HEARING COMPLETED · IN VIOLATION | 2019-12-05 | Dept. Of Buildings | WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCUMENTS AMENDMENTS | COMPLEX DEVELOPMENT INC | $0 / $0 / $0 | 035457592K |
| No balance due HEARING COMPLETED · IN VIOLATION | 2019-12-05 | Dept. Of Buildings | FAIL TO PROVIDE APPROVED OR ACCEPTED CONSTRUCTION DOCS AT JOB SITE | COMPLEX DEVELOPMENT INC | $0 / $0 / $0 | 035464462H |
| No balance due HEARING COMPLETED · DISMISSED | 2016-12-01 | Dept. Of Buildings | FILED CERT FORM APPLICATION ETC CONTAINING A MATERIAL FALSE STATEMENTS | WORLDWIDE PLBG AND HTG INC | — / — / — | 035203958X |
| No balance due HEARING COMPLETED · DISMISSED | 2016-12-01 | Dept. Of Buildings | FILED CERT FORM APPLICATION ETC CONTAINING A MATERIAL FALSE STATEMENTS | WORLDWIDE PLBG AND HTG INC | — / — / — | 035203959H |
| No balance due PAID IN FULL | 2016-01-12 | Sanitation Dept | LOOSE RUBBISH | JUTAGIR | $100 / $100 / — | 0188768040 |
Showing 12 of 15 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
- 389209
- Last registered
- 2026-10-19
- Registration valid until
- 2027-09-01 CurrentRegistrations must be renewed every year.
| Role | Name | Company | Business city |
|---|---|---|---|
| Jointowner | Irene Rusu | Brooklyn, Ny | |
| Agent | Avinand Jutagir | Brooklyn, Ny | |
| Jointowner | Avinand Jutagir | Brooklyn, Ny | |
| Sitemanager | Avinand Jutagir |
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 3
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 · 2026-05-14 | A | 2026-05-06 | (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 · 2023-12-06 | I | 2023-11-22 | §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 · 2023-01-03 | 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. |
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) 0
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.
No records found in this dataset for this lot.
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 Waverly Ave
- 445 Waverly Avenue (eight open items)
- 441 Waverly Avenue (three open items)
- 447 Waverly Avenue
- 439a Waverly Avenue
- 439 Waverly Avenue (35 open items)
- 448 Waverly Avenue (14 open items)
- 437 Waverly Avenue (one open item)
- 450 Waverly Avenue (13 open items)
- 435 Waverly Avenue
- 434 Waverly Avenue (four open items)
Same tax block (1962)
- 447 Waverly Avenue
- 445 Waverly Avenue (eight open items)
- 441 Waverly Avenue (three open items)
- 439a Waverly Avenue
- 439 Waverly Avenue (35 open items)
- 437 Waverly Avenue (one open item)
- 435 Waverly Avenue
- 433 Waverly Avenue (one open item)
- 431 Waverly Avenue (16 open items)
- 460 Washington Avenue
All properties on Waverly 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