523 3rd Street, Brooklyn, NY 11215
BBL 3010780065 (Borough 3, Block 1078, Lot 65) · BIN 3025333 · Last updated:
Summary · as of October 31, 2026
523 3rd Street (Brooklyn, NY 11215; tax lot BBL 3010780065) is a 3-unit walk-up apartment building (building class C0: three-family walk-up), built around 1899, on a 1,900 sq ft lot zoned R6B. City tax records list the owner as RAITEN, GREGORY KARL; per ACRIS, a deed to this owner dated October 27, 2021 lists a price of $4,475,000. The Department of Finance's final market value for tax year 2027 is $4,325,000. As of October 31, 2026, NYC Open Data shows two OATH tickets with an unpaid balance. There were two 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
- RAITEN, GREGORY KARL
- Building class
- C0 · Three-family walk-up
- Year built · units
- 1899 · 3 res.
- Lot area · zoning
- 1,900 sq ft · R6B
- Market value (DOF)
- $4,325,000 FY2027
- Last priced deed
- $4,475,000 · 2021-10-27
- BBL
- 3010780065
- BIN
- 3025333
- 0Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 2OATH tickets with unpaid balance
How to cite: NYC Property Facts, “523 3rd Street, Brooklyn, NY 11215 (BBL 3010780065)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/523-3rd-street-3010780065. 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)
- RAITEN, GREGORY KARLThe 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
- 1899Often an estimate for older buildings.
- Floors
- 3
- Units
- 3 residential / 3 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,900 sq ft (20 ft × 95 ft)
- Building floor area
- 3,960 sq ft
- Zoning
- R6BThe zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 2.08 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
- Park Slope Historic DistrictExterior changes in a historic district need Landmarks Preservation Commission approval.
- Identifiers
- BBL 3010780065 (Borough 3, Block 1078, Lot 65) · BIN 3025333BBL 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 2026-11-02; 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)
- $4,325,000The 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
- $259,500The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $78,684Assessed 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 | $4,325,000 | $259,500 | 1 |
| 2026 | Final | $4,965,000 | $297,900 | 1 |
| 2025 | Final | $4,747,000 | $284,820 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-02
Sales & deed history 6
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 |
|---|---|---|---|---|---|
| 2021-10-27 | DEED | $4,475,000 | Milius, Robert H; Milius, Elena | Raiten, Gregory Karl; Raiten, Chelsea Dawn | 2021110301047001 |
| 2003-12-15 | DEED | $1,725,000 | Rosee, F/K/A Marilyn; Rosee, Marilyn; Siegal, Sandra | Milus, Elena; Milius, Robert H | 2003121700137002 |
| 1997-06-26 | DEED | $0 / not stated | Rosee, Marilyn; Levenson, Marilyn; Levinson, Marilyn/Aka; Siegal, Sandra | Levinson, Marilyn/Aka; Levenson, Marilyn; Rosee, Marilyn; Siegal, Sandra | FT_3800005740480 |
| 1987-10-14 | DEED | $0 / not stated | Levenson, Marilyn; Siegal, Sandra | Siegal, Sandra; Levenson, Marilyn | FT_3770001322477 |
| 1986-09-11 | DEED | $0 / not stated | Kinzler, Carol A; Kinzler, Thomas B | Levenson, Marilyn; Levinson, Marilyn Aka; Siegal, Sandra | FT_3110001201711 |
| 1982-01-20 | DEED | $0 / not stated | Lasala, Anthony J. | Kinzler, Thomas B.; Kinzler, Carol A. | FT_3350000897335 |
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-02
DOB job filings 0 open of 19
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 |
|---|---|---|---|---|
| Not open Approved · 2026-08-26 | B01038461-A3 DOB NOW | Alteration CO | 2026-08-24 | $66,000 |
| Not open Approved · 2026-05-15 | B01038461-P9 DOB NOW | Alteration CO | 2026-04-01 | $66,000 |
| Not open Approved · 2026-04-10 | B01038461-A2 DOB NOW | Alteration CO | 2026-03-27 | $51,600 |
| Not open Approved · 2026-05-19 | B01038461-A1 DOB NOW | Alteration CO | 2026-03-27 | $52,125 |
| Not open Approved · 2026-03-17 | B01038461-P8 DOB NOW | Alteration CO | 2026-02-20 | $64,200 |
| Not open Approved · 2026-01-12 | B01038461-P7 DOB NOW | Alteration CO | 2026-01-06 | $51,600 |
| Not open LOC Issued · 2026-02-03 | B01246757-I1 DOB NOW | Alteration | 2025-07-02 | $75,058 |
| Not open Approved · 2025-06-04 | B01038461-P6 DOB NOW | Alteration CO | 2025-05-08 | $570,146 |
| Not open Approved · 2025-04-24 | B01038461-P5 DOB NOW | Alteration CO | 2025-04-21 | $64,200 |
| Not open Approved · 2024-11-22 | B01038461-P4 DOB NOW | Alteration CO | 2024-11-20 | $51,600 |
| Not open Approved · 2024-12-20 | B01038461-P3 DOB NOW | Alteration CO | 2024-11-18 | $570,146 |
| Not open Approved · 2024-10-24 | B01038461-P2 DOB NOW | Alteration CO | 2024-10-15 | $570,146 |
| Not open LOC Issued · 2026-07-21 | B01038461-S2 DOB NOW | Alteration CO | 2024-09-17 | $52,125 |
| Not open LOC Issued · 2026-04-20 | B01038461-S4 DOB NOW | Alteration CO | 2024-08-26 | $51,600 |
| Not open LOC Issued · 2026-08-28 | B01038461-S3 DOB NOW | Alteration CO | 2024-07-25 | $66,000 |
| Not open LOC Issued · 2026-05-20 | B01038461-S1 DOB NOW | Alteration CO | 2024-05-06 | $64,200 |
| Not open CO Issued · 2026-10-23 | B01038461-I1 DOB NOW | Alteration CO | 2024-04-30 | $570,146 |
| Not open PLAN EXAM - DISAPPROVED · 2008-04-26 | 310111232 BIS | A1 – Major alteration (changes use, egress or occupancy) | 2008-04-02 | $87,000 |
| Not open SIGNED OFF · 2003-10-07 | 301642499 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2003-09-15 | $2,000 |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-02; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31
Work permits 14
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 |
|---|---|---|---|---|
| 2026-02-18 | 2027-02-18 | B01038461-S4 DOB NOW | Sprinklers PROVIDE FIRE SPRINKLER SYSTEM THROUGHOUT TWO FAMILY RESIDENTIAL BUILDING IN CONJUNCTION WITH ALTERATION #B01038461-I1. | Signed-off |
| 2025-10-14 | 2026-10-11 | B01038461-S3 DOB NOW | Mechanical Systems INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED | Signed-off |
| 2025-07-09 | 2026-03-31 | B01246757-I1 DOB NOW | Solar INSTALL SOLAR PV ON EXISTING ROOFTOP. NO CHANGE IN USE, OCCUPANCY, OR EGRESS. | Signed-off |
| 2025-07-08 | 2026-07-08 | B01038461-S2 DOB NOW | Foundation Structural & foundation work in conjunction with ALT/CO application. New framing, steel dunnage and lintels, concrete slab in cellar. | Signed-off |
| 2025-07-08 | 2026-07-08 | B01038461-S2 DOB NOW | Structural Structural & foundation work in conjunction with ALT/CO application. New framing, steel dunnage and lintels, concrete slab in cellar. | Signed-off |
| 2025-07-08 | 2026-07-08 | B01038461-S2 DOB NOW | General Construction Structural & foundation work in conjunction with ALT/CO application. New framing, steel dunnage and lintels, concrete slab in cellar. | Signed-off |
| 2025-07-08 | 2026-07-08 | B01038461-I1 DOB NOW | General Construction RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. CHANGE OCCUPANCY FROM 3 FAMILIES TO 2 FAMILY. NEW WINDOWS, ENLARGE OPENING AT REAR OF FIRST FLOOR | Permit Issued |
| 2025-03-20 | 2026-03-20 | B01038461-S4 DOB NOW | Sprinklers PROVIDE FIRE SPRINKLER SYSTEM THROUGHOUT TWO FAMILY RESIDENTIAL BUILDING IN CONJUNCTION WITH ALTERATION #B01038461-I1. | Signed-off |
| 2024-11-18 | 2025-07-06 | B01038461-S2 DOB NOW | General Construction Structural & foundation work in conjunction with ALT/CO application. New framing, steel dunnage and lintels, concrete slab in cellar. | Signed-off |
| 2024-11-18 | 2025-07-06 | B01038461-S2 DOB NOW | Foundation Structural & foundation work in conjunction with ALT/CO application. New framing, steel dunnage and lintels, concrete slab in cellar. | Signed-off |
| 2024-11-18 | 2025-07-06 | B01038461-S2 DOB NOW | Structural Structural & foundation work in conjunction with ALT/CO application. New framing, steel dunnage and lintels, concrete slab in cellar. | Signed-off |
| 2024-10-24 | 2025-07-06 | B01038461-I1 DOB NOW | General Construction RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. CHANGE OCCUPANCY FROM 3 FAMILIES TO 2 FAMILY. NEW WINDOWS, ENLARGE OPENING AT REAR OF FIRST FLOOR | Permit Issued |
Showing 12 of 14 records. The API and the source dataset have the full list.
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-02; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31
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 2026-11-02; data as of 2026-11-02
ECB violations (DOB) 0 active of 0
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.
No records found in this dataset for this lot.
Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-02
OATH tickets (all agencies) 2 unpaid of 10
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 | 2025-03-25 | Asbestos Control Program | FAIL TO ENSURE PERSONS IN WORK AREA WEAR PROPER BOOTS PPE | SERVICE INC | $14,400 / $0 / $15,840 | 051010557Y |
| Unpaid balance Default DEFAULTED · DEFAULTED | 2025-03-25 | Asbestos Control Program | FAILED TO PROPERLY CORDON OFF AND RESTRICT ACCESS TO WORK AREA | RAITEN | $7,200 / $0 / $7,920 | 051010556M |
| No balance due PAID IN FULL | 2026-06-20 | Sanitation Others | RECYC PLACED FOR COLLECTION W NON-RECYC 1 TO 8 DWELLING UNITS | RAITEN GREGORY KARL | $25 / $25 / $0 | 049819017H |
| No balance due PAID IN FULL | 2024-04-27 | Sanitation Others | LOOSE RUBBISH 1ST OCCURRENCE | RAITEN GREGORY KARL | $50 / $50 / $0 | 048265892H |
| No balance due Default PAID IN FULL · DEFAULTED | 2012-06-11 | Dos - Enforcement Agents | IMPROPER DISPOSAL BEDDING 1ST OFFENSE | MILIUS | $300 / $380 / $0 | 041695450X |
| No balance due HEARING COMPLETED · DISMISSED | 2009-04-22 | Sanitation Others | STORAGE OF RECEPTACLES | MILIUS | — / — / — | 0172750876 |
| No balance due HEARING COMPLETED · IN VIOLATION | 2008-02-13 | Fire Department Of Nyc | FAILED TO PROVIDE LIGHTING DEVICES | ROBEERT MILIUS | — / — / — | 011040670M |
| No balance due PAID IN FULL · IN VIOLATION | 2007-05-09 | Fire Department Of Nyc | FAILED TO PROVIDE FIREPROOF PARTITIONS | ROBERT MILIUS | $875 / $875 / — | 011023834P |
| No balance due PAID IN FULL | 2003-12-17 | $25 / $25 / — | 0136245149 | |||
| No balance due PAID IN FULL | 2001-04-14 | $25 / $25 / — | 0114463544 |
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-02
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
- 128752
- Last registered
- 2025-11-12
- Registration valid until
- 2026-09-01 ExpiredRegistrations must be renewed every year.
| Role | Name | Company | Business city |
|---|---|---|---|
| Jointowner | Gregory Raiten | Brooklyn, Ny | |
| Agent | Gregory Raiten | Brooklyn, Ny | |
| Sitemanager | Chelsea Raiten | ||
| Jointowner | Chelsea Raiten | Brooklyn, Ny |
Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-10-28; data as of 2026-11-02; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-02
HPD housing-code violations 0 open of 10
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 · 2026-04-03 | A | 2025-06-05 | (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 · 2025-11-13 | I | 2024-11-26 | §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 · 2023-08-18 | A | 2023-03-17 | (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 · 2023-08-18 | A | 2022-02-18 | (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 · 2021-07-14 | A | 2021-04-05 | (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 · 2021-06-29 | I | 2021-04-05 | §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 · 2021-06-29 | I | 2019-10-28 | §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 · 2018-12-05 | I | 2018-10-12 | §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 · 2017-11-22 | I | 2017-11-15 | §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 Dismissed · 2016-01-20 | I | 2015-10-06 | SECTION27-2107 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 P |
Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-02; data as of 2026-11-02
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 |
|---|---|---|---|---|
| 2021-11-01 | CLOSE | FLOOR | Plumbing – Water Supply | The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. |
Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-02; data as of 2026-11-02
311 requests (last 12 months) 2
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 |
|---|---|---|---|---|
| 2025-11-10 | NYPD | Illegal Parking – Blocked Hydrant | Closed | 2025-11-10 |
| 2025-11-10 | NYPD | Illegal Parking – Double Parked Blocking Vehicle | Closed | 2025-11-10 |
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-02; data as of 2026-11-02
Nearby properties
On 3 St
- 522 3rd Street (two open items)
- 524 3rd Street (one open item)
- 525 3rd Street
- 521 3rd Street (one open item)
- 520 3rd Street
- 526 3rd Street
- 527 3rd Street
- 519 3rd Street (one open item)
- 518 3rd Street
- 528 3rd Street
Same tax block (1078)
- 203 7th Avenue (31 open items)
- 197 7th Avenue (three open items)
- 195 7th Avenue (14 open items)
- 193 7th Avenue (seven open items)
- 189 7th Avenue (17 open items)
- 514 2nd Street (two open items)
- 518 2nd Street
- 520 2nd Street (49 open items)
- 522 2nd Street (seven open items)
- 524 2nd Street
All properties on 3 St, Brooklyn · All of Brooklyn 11215 (Park Slope)
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