69 Eldert Street, Brooklyn, NY 11207
BBL 3034090059 (Borough 3, Block 3409, Lot 59) · BIN 3078786 · Last updated: · East New York-New Lots · ZIP 11207
Summary · as of November 6, 2026
69 Eldert Street (Brooklyn, NY 11207; tax lot BBL 3034090059) is a 3-unit walk-up apartment building (building class C0: three-family walk-up), built around 1910, on a 2,000 sq ft lot zoned R6. City tax records list the owner as 69 ELDERT REALTY LLC; per ACRIS, a deed to this owner dated March 20, 2019 lists a price of $1,790,000. The Department of Finance's final market value for tax year 2027 is $2,576,000. As of November 6, 2026, NYC Open Data shows seven open HPD violations and one OATH ticket with an unpaid balance. There was one 311 request in the past 12 months and six HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- 69 ELDERT REALTY LLC
- Building class
- C0 · Three-family walk-up
- Year built · units
- 1910 · 3 res.
- Lot area · zoning
- 2,000 sq ft · R6
- Market value (DOF)
- $2,576,000 FY2027
- Last priced deed
- $1,790,000 · 2019-03-20
- BBL
- 3034090059
- BIN
- 3078786
- 0Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violations
- 0Active ECB violations
- 7Open HPD violations
- 1OATH tickets with unpaid balance
How to cite: NYC Property Facts, “69 Eldert Street, Brooklyn, NY 11207 (BBL 3034090059)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/69-eldert-street-3034090059. 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)
- 69 ELDERT REALTY LLCThe 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
- 1910Often 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
- 2,000 sq ft (20 ft × 100 ft)
- Building floor area
- 4,200 sq ft
- Zoning
- R6The zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 2.10 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 3034090059 (Borough 3, Block 3409, Lot 59) · BIN 3078786BBL 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)
- $2,576,000The 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
- $154,560The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $19,561Assessed 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 | $2,576,000 | $154,560 | 1 |
| 2026 | Final | $2,397,000 | $143,820 | 1 |
| 2025 | Final | $2,191,000 | $131,460 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-07
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 |
|---|---|---|---|---|---|
| 2019-03-20 | DEED | $1,790,000 | Frozen Peguin Llc A/K/A Frozen Penguin Llc | 69 Eldert Realty Llc | 2019032600201001 |
| 2018-01-24 | DEED | $0 / not stated | Crown, Sophia | Frozen Peguin Llc | 2018012600075001 |
| 2016-05-03 | DEED | $1,410,000 | Brick Home Llc | Crown, Sophia | 2016050901417001 |
| 2013-05-21 | DEED | $0 / not stated | Alexander Property Corp. | Brick Home Llc | 2013060600825001 |
| 2013-03-13 | DEED | $385,000 | Rosa, Wanda | Alexander Property Corp. | 2013031900678001 |
| 2013-03-13 | DEED | $360,000 | Estate Of Avis Y. Jones; Carradine, Administrator, Lynette Jones- | Rosa, Wanda | 2013031801358001 |
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 0 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 |
|---|---|---|---|---|
| Not open SIGNED OFF · 2014-05-09 | 320772375 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2013-06-11 | $16,000 |
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 2
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 |
|---|---|---|---|---|
| 2013-06-13 | 2014-06-13 | 320772375 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2013-06-11 | 2013-07-13 | 320772375 BIS | Equipment work / Other / general construction | 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) 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 2026-11-06; data as of 2026-11-07
OATH tickets (all agencies) 1 unpaid of 19
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 DOCKETED · DEFAULTED | 2019-04-03 | Sanitation Others | DIRTY AREA | FROZEN PEGUIN LLC | $300 / $0 / $300 | 0206806885 |
| Hearing pending NEW ISSUANCE | 2026-09-16 | Sanitation Others | IMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1ST | 69 ELDERT REALTY LLC | $50 / $0 / $50 | 049987789K |
| No balance due Default PAID IN FULL · DEFAULTED | 2024-10-16 | Dos - Enforcement Agents | FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS | 69 ELDERT REALTY LLC | $25 / $26 / $0 | 048670361H |
| No balance due PAID IN FULL · SETTL IN-VIO | 2022-04-02 | Sanitation Others | IMPROPER DISPOSAL--BEDDING 1ST OCCURRENCE | 69 ELDERT REALTY LLC | $300 / $223 / $0 | 047447936L |
| No balance due PAID IN FULL · SETTL IN-VIO | 2019-11-21 | Sanitation Others | DIRTY AREA | 69 ELDERT REALTY LLC | $300 / $300 / $0 | 0209769423 |
| No balance due Default PAID IN FULL · DEFAULTED | 2019-06-26 | Dos - Enforcement Agents | FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS | 69 ELDERT REALTY LLC | $25 / $38 / $0 | 044365287M |
| No balance due Default PAID IN FULL · DEFAULTED | 2019-04-07 | Dos - Enforcement Agents | IMPROPER RECEPTACLES 1ST OFFENSE | FROZEN PEGUIN LLC | $130 / $100 / $0 | 041926216N |
| No balance due PAID IN FULL | 2017-05-10 | Sanitation Others | IMPROPER DISPOSAL BEDDING 1ST OFFENSE | CROWN | $100 / $100 / $0 | 0195561989 |
| No balance due PAID IN FULL | 2015-11-14 | Sanitation Recycling | DIRTY SIDEWALK DIRTY AREA | BRICK HOME LLC | $100 / $100 / — | 040516181Y |
| No balance due PAID IN FULL | 2015-04-01 | Sanitation Dept | RECYC PLACED FOR COLLECTION W NON-RECYC 1 TO 8 DWELLING UNITS | BRICK HOME LLC | $25 / $25 / — | 041407848R |
| No balance due PAID IN FULL | 2015-03-28 | Sanitation Dept | RECYC PLACED FOR COLLECTION W NON-RECYC 1 TO 8 DWELLING UNITS | BRICK HOME LLC | $25 / $25 / — | 041688055K |
| No balance due PAID IN FULL | 2014-12-24 | Sanitation Dept | RECYC PLACED FOR COLLECTION W NON-RECYC 1 TO 8 DWELLING UNITS | BRICK HOME LLC | $25 / $25 / — | 041857277K |
Showing 12 of 19 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
- 288600
- Last registered
- 2026-09-18
- Registration valid until
- 2027-09-01 CurrentRegistrations must be renewed every year.
| Role | Name | Company | Business city |
|---|---|---|---|
| Shareholder | Penelope Zagalis | Whitestone, Ny | |
| Officer | Penelope Zagalis | Whitestone, Ny | |
| Shareholder | 0, Ny | ||
| Shareholder | James | 0, Ny | |
| Corporateowner | 69 Eldert Street Realty LLC | Glen Head, Ny | |
| Headofficer | James Pappas | Glen Head, Ny | |
| Agent | James Pappas | 69 ELDERT STREET REALTY | Whitestone, Ny |
| Sitemanager | James Pappas |
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 7 open of 20
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 · 2019-12-12 | A | 2019-12-12 | § 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. | |
| Open Nov Sent Out · 2019-12-12 | A | 2019-12-12 | § 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. | |
| Open Nov Sent Out · 2019-12-12 | A | 2019-12-12 | § 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 1ST STORY PUBLIC HALL | |
| Open Nov Sent Out · 2019-12-12 | C | 2019-12-12 | § 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM DOOR TO THE CELLAR LOCKED AT 1ST STORY PUBLIC HALL | |
| Open Nov Sent Out · 2019-12-12 | A | 2019-12-12 | § 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 | |
| Open Nov Sent Out · 2019-12-12 | A | 2019-12-12 | § 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 1ST STORY PUBLIC HALL | |
| Open Nov Sent Out · 2019-12-12 | C | 2019-12-12 | § 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 1ST STORY PUBLIC HALL | |
| Closed Violation Dismissed · 2025-11-21 | I | 2025-11-18 | §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 · 2026-01-02 | A | 2025-06-09 | (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 · 2025-11-21 | 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 · 2026-01-02 | A | 2024-04-10 | (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 · 2025-11-21 | I | 2023-11-17 | §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 Dismissed · 2026-01-02 | A | 2023-03-22 | (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 · 2025-11-21 | I | 2022-11-07 | §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 · 2025-11-21 | I | 2022-02-24 | §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 | |
| Closed Violation Dismissed · 2026-01-02 | A | 2022-02-24 | (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 · 2025-11-21 | I | 2021-04-08 | §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 · 2026-01-02 | A | 2021-04-08 | (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 · 2025-11-21 | I | 2019-10-30 | §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 · 2015-08-24 | I | 2015-02-20 | 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 2026-11-06; data as of 2026-11-07
HPD complaints 6
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 |
|---|---|---|---|---|
| 2025-08-10 | CLOSE | 2 | Plumbing – Water Supply | 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 |
| 2023-03-05 | CLOSE | 1STFLO | Heat/Hot Water – Apartment Only | The Department of Housing Preservation and Development responded to a complaint of no heat or hot water and was advised by a tenant in the building that heat and hot water had been restored. If the co |
| 2020-09-23 | CLOSE | BLDG | Unsanitary Condition – Garbage/Recycling Storage | The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. |
| 2020-09-22 | CLOSE | BLDG | Unsanitary Condition – Garbage/Recycling Storage | The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. |
| 2019-11-11 | CLOSE | BLDG | Unsanitary Condition – Garbage/Recycling Storage | The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. |
| 2019-11-03 | CLOSE | BLDG | Unsanitary Condition – Garbage/Recycling Storage | 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 2026-11-07; data as of 2026-11-07
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 |
|---|---|---|---|---|
| 2026-06-11 | DSNY | Street Sweeping Complaint – Inadequate Sweeping | Closed | 2026-06-11 |
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-07; data as of 2026-11-07
Nearby properties
More in East New York-New Lots: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
On Eldert St
- 29 Eldert Street (two open items)
- 30 Eldert Street (12 open items)
- 31 Eldert Street (six open items)
- 32 Eldert Street (15 open items)
- 33 Eldert Street (27 open items)
- 34 Eldert Street
Same tax block (3409)
- 99 Eldert Street (17 open items)
- 97 Eldert Street (one open item)
- 95 Eldert Street (six open items)
- 93 Eldert Street (35 open items)
- 81 Eldert Street (two open items)
- 79 Eldert Street (two 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