SL Green Realty Corp.

SL Green Realty Corp. (NYSE: SLG) is "Manhattan's largest office landlord, a fully integrated real estate investment trust, or REIT, that is focused primarily on acquiring, managing and maximizing the value of Manhattan commercial properties." Founded in 1997 by Stephen L. Green (as successor to S.L. Green Properties, established 1980) and headquartered in New York City, SL Green is led by Chairman & CEO Marc Holliday. As of fiscal year-end 2024 the company reported 39 properties totaling approximately 25.3 million square feet, US$886M in revenue, US$10.47B in total assets, and 1,221 employees. The portfolio includes flagship trophy assets One Vanderbilt (1,401 ft, 1.75M sq ft, 62 stories, fully leased; home to Summit One Vanderbilt observation deck) and One Madison Avenue (2026 ULI Award for Excellence in Office Development), plus 420 Lexington Avenue, 1185 Avenue of the Americas, 1350 Avenue of the Americas, 800 Third Avenue, 825 Eighth Avenue, Worldwide Plaza, the Pershing Square Building, and 15 Laight Street in Tribeca. The company is the New York joint-venture partner for Caesars Palace Times Square, the proposed casino/entertainment complex at 1515 Broadway (and adjacent 1185 Avenue of the Americas redevelopment), pending issuance of one of three New York State downstate gaming licenses. Business divisions span leasing, finance, investments, construction, development, hospitality, property management, security & life safety, sustainability, and technology. SL Green publishes no public developer APIs, no OpenAPI/AsyncAPI specs, no SDKs, no developer portal, no public GitHub organization, and no public sandbox. Its tenant-facing technology surface is delivered through third-party platforms — the "My Building" tenant portal, RequestCom for building services, and ADP Workforce for recruitment — none of which expose a programmable interface attributable to SL Green. This profile documents the REIT, its portfolio, leadership, and verified absence of a public API footprint.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

How we profile SL Green Realty Corp.

Each block below is one kind of artifact we hold for SL Green Realty Corp.. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 1

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

SL Green Realty Corp. GraphQL Schema

Conceptual GraphQL schema for SL Green Realty Corp. covering Property, Building, Floor, Suite, Lease, Tenant, Occupancy, Transaction, Contact, AmenityLevel, CertificationLevel, ...

GraphQL 1

Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.

GraphQL schemas published by this provider.

SL Green Realty — GraphQL Schema

SL Green Realty Corp. (NYSE: SLG) is Manhattan's largest office landlord and a fully integrated real estate investment trust (REIT) focused on acquiring, managing, and maximizin...

GRAPHQL

Features 9

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

{"finding"=>"Public developer portal", "status"=>"None — no developer.slgreen.com or equivalent"}

{"finding"=>"Public OpenAPI / AsyncAPI specs", "status"=>"None published"}

{"finding"=>"Public REST or GraphQL APIs", "status"=>"None — tenant services delivered via third-party portals"}

{"finding"=>"SDKs / CLI", "status"=>"None published"}

{"finding"=>"GitHub organization", "status"=>"None — no github.com/slgreen org found"}

{"finding"=>"Status page / changelog", "status"=>"None public"}

{"finding"=>"Sandbox / Console", "status"=>"None"}

{"finding"=>"Tenant technology surface", "status"=>"Vendor-mediated — \"My Building\" portal, RequestCom, ADP Workforce"}

{"finding"=>"Tier rationale", "status"=>"Tier 3 — no-apis. REIT with no programmable public surface."}

Scroll within the panel for all 9 ·

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Sl Green Realty Context

31 classes · 0 properties

JSON-LD

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Sl Green Realty Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Every other property we hold for SL Green Realty Corp. — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

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