Starwood Hotels and Resorts website screenshot

Starwood Hotels and Resorts

Starwood Hotels & Resorts Worldwide was a global hotel and leisure company headquartered in Stamford, Connecticut. Prior to its acquisition by Marriott International in September 2016, Starwood operated and franchised hotels, resorts, and residences under iconic brands including Sheraton, Westin, W Hotels, St. Regis, Le Méridien, Four Points, Tribute Portfolio, Design Hotels, Element, and Aloft. The company also operated the Starwood Preferred Guest (SPG) loyalty program, which was later merged into Marriott Bonvoy. At the time of acquisition, Starwood managed over 1,300 properties in approximately 100 countries. Starwood exposed APIs for hotel search, property data, and loyalty program integration that were consumed by travel platforms and partners.

Starwood Hotels and Resorts publishes 3 APIs on the APIs.io network: Availability API, Hotels API, and Properties API.

The Starwood Hotels and Resorts catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Starwood Hotels and Resorts’ developer surface includes engineering blog and 15 more developer resources.

45.2/100 developing ▬ flat Agent 29/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessEnterprise
5 APIs

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 45.2/100 · developing
Contract Quality 16.1 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 2.7 / 13
Governance 8.3 / 12
Discoverability 5.9 / 10
Agent readiness — 29/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/starwood-hotels-and-resorts: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 5

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

SPG Loyalty API

The Starwood Preferred Guest (SPG) Loyalty API provided programmatic access to the SPG loyalty program, enabling partners to query member point balances, redeem Starpoints, look...

Property Data API

The Starwood Property Data API provided detailed information about individual hotel properties including room types, amenities, dining options, meeting and event spaces, photos,...

Starwood Hotels and Resorts Availability API

Rate and availability operations

Starwood Hotels and Resorts Hotels API

Hotel search and property operations

Starwood Hotels and Resorts Properties API

Property detail operations

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Starwood Hotel Search API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

FinOps 1

Cost, billing, and metering signals for API financial operations.

Semantic Vocabularies 1

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

Starwood Hotels And Resorts Context

23 classes · 8 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Starwood Hotels and Resorts API Rules

5 rules · 3 warnings 2 info

SPECTRAL

Starwood Hotels and Resorts API Rules

13 rules · 4 errors 9 warnings

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Hotel

21 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Starwood Hotel Structure

0 properties

JSON STRUCTURE

Examples 1

Example request and response payloads for these APIs.

Security Posture 1

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

Starwood Hotels And Resorts Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Starwood Hotels And Resorts Agentic Access

3 operations

3 operations · 0 acting

AGENTIC

Press 5

Recent news and press coverage referencing this provider.

Document 4 - file: exhibit991-pressreleasexan.htm

2026-05-25

SH HOTELS & RESORTS BECOMES STARWOOD ...

2026-05-25

Starwood Hotels Return and Expansion

2026-05-25

Starwood Hotels new logo and its future under Barry ...

2026-05-25

CT-STARWOOD-HOTELS | Business Wire - Via Ritzau

2026-05-25

Resources

Get Started 1

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Access & Security 1

Authentication, authorization, and security posture

Commercial 2

Pricing, plans, and the legal terms of use

Company 4

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: starwood-hotels-and-resorts
accessModel:
  pricing: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/starwood-hotels-and-resorts.png
url: https://raw.githubusercontent.com/api-evangelist/starwood-hotels-and-resorts/refs/heads/main/apis.yml
modified: '2026-05-19'
name: Starwood Hotels and Resorts
description: Starwood Hotels & Resorts Worldwide was a global hotel and leisure company headquartered in Stamford, Connecticut.
  Prior to its acquisition by Marriott International in September 2016, Starwood operated and franchised hotels, resorts,
  and residences under iconic brands including Sheraton, Westin, W Hotels, St. Regis, Le Méridien, Four Points, Tribute Portfolio,
  Design Hotels, Element, and Aloft. The company also operated the Starwood Preferred Guest (SPG) loyalty program, which was
  later merged into Marriott Bonvoy. At the time of acquisition, Starwood managed over 1,300 properties in approximately 100
  countries. Starwood exposed APIs for hotel search, property data, and loyalty program integration that were consumed by
  travel platforms and partners.
apis:
- aid: starwood-hotels-and-resorts:spg-loyalty-api
  name: SPG Loyalty API
  description: The Starwood Preferred Guest (SPG) Loyalty API provided programmatic access to the SPG loyalty program, enabling
    partners to query member point balances, redeem Starpoints, look up member status and tier information, and book award
    nights. The program offered Preferred, Gold, and Platinum status tiers with corresponding benefits. Following the Marriott
    acquisition, SPG was eventually merged into the Marriott Bonvoy loyalty program in 2019.
  humanURL: https://www.starwoodhotels.com/preferredguest/
  baseURL: https://www.starwoodhotels.com/api/spg
  tags:
  - Loyalty
  - Rewards
  - Hotels
  - Travel
  - Hospitality
  properties:
  - type: Documentation
    url: https://www.starwoodhotels.com/preferredguest/
- aid: starwood-hotels-and-resorts:property-data-api
  name: Property Data API
  description: The Starwood Property Data API provided detailed information about individual hotel properties including room
    types, amenities, dining options, meeting and event spaces, photos, geo-coordinates, and contact information. Partners
    used this API to populate travel booking sites and corporate travel management systems with accurate Starwood property
    content.
  humanURL: https://www.starwoodhotels.com/
  baseURL: https://www.starwoodhotels.com/api/properties
  tags:
  - Hotels
  - Properties
  - Travel
  - Content
  - Hospitality
  properties:
  - type: Documentation
    url: https://www.starwoodhotels.com/
- aid: starwood-hotels-and-resorts:starwood-hotels-and-resorts-availability-api
  name: Starwood Hotels and Resorts Availability API
  description: Rate and availability operations
  humanURL: https://www.starwoodhotels.com/
  baseURL: https://www.starwoodhotels.com/api
  tags:
  - Availability
  properties:
  - type: OpenAPI
    url: openapi/starwood-hotels-and-resorts-availability-api-openapi.yml
  - type: Documentation
    url: https://github.com/StayExpert/starwood
- aid: starwood-hotels-and-resorts:starwood-hotels-and-resorts-hotels-api
  name: Starwood Hotels and Resorts Hotels API
  description: Hotel search and property operations
  humanURL: https://www.starwoodhotels.com/
  baseURL: https://www.starwoodhotels.com/api
  tags:
  - Hotels
  properties:
  - type: OpenAPI
    url: openapi/starwood-hotels-and-resorts-hotels-api-openapi.yml
  - type: Documentation
    url: https://github.com/StayExpert/starwood
- aid: starwood-hotels-and-resorts:starwood-hotels-and-resorts-properties-api
  name: Starwood Hotels and Resorts Properties API
  description: Property detail operations
  humanURL: https://www.starwoodhotels.com/
  baseURL: https://www.starwoodhotels.com/api
  tags:
  - Properties
  properties:
  - type: OpenAPI
    url: openapi/starwood-hotels-and-resorts-properties-api-openapi.yml
  - type: Documentation
    url: https://github.com/StayExpert/starwood
common:
- type: AgenticAccess
  url: agentic-access/starwood-hotels-and-resorts-agentic-access.yml
- type: DomainSecurity
  url: security/starwood-hotels-and-resorts-domain-security.yml
- type: Website
  url: https://www.starwoodhotels.com
- type: DeveloperPortal
  url: https://github.com/StayExpert/starwood
- type: LinkedIn
  url: https://www.linkedin.com/company/starwoodhotels
- type: Facebook
  url: https://www.facebook.com/starwood
- type: Blog
  url: https://www.starwoodhotels.com/corporate/
- type: Acquisition
  url: https://marriott.gcs-web.com/news-releases/news-release-details/marriott-international-completes-acquisition-starwood-hotels
- type: TermsOfService
  url: https://www.starwoodhotels.com/corporate/terms.html
- type: PrivacyPolicy
  url: https://www.starwoodhotels.com/corporate/privacy.html
- type: OpenAPI
  url: openapi/starwood-hotel-search-openapi.yml
- type: JSONSchema
  url: json-schema/starwood-hotel-search-schema.json
- type: JSONStructure
  url: json-structure/starwood-hotel-structure.json
- type: JSONLD
  url: json-ld/starwood-hotels-and-resorts-context.jsonld
- type: Vocabulary
  url: vocabulary/starwood-hotels-and-resorts-vocabulary.yml
- type: SpectralRules
  url: rules/starwood-hotels-and-resorts-rules.yml