Marriott International
Marriott International is the world's largest hotel group by room count, headquartered in Bethesda, Maryland, United States, operating and franchising roughly thirty brands from The Ritz-Carlton, St. Regis and W through Marriott Hotels, Sheraton, Westin and Courtyard down to Fairfield, Moxy and StudioRes, plus the Homes & Villas by Marriott Bonvoy home-rental marketplace and the Marriott Bonvoy loyalty program. It sits on the supply side of the travel distribution chain: it publishes rates and availability into every major global distribution system — Marriott's own travel-agent site states it "participates in the following GDS: Amadeus, Sabre, Travelport (Apollo/Galileo, and Worldspan)" — sells through the OTAs, connects short-term-rental supply through a channel-connectivity partner program, and spends heavily to pull demand back to direct booking on Marriott.com and the Bonvoy app. Its API posture is closed. A Broadcom Layer7 developer portal exists at devportalprod.marriott.com and returns HTTP 200, but its anonymous API catalog is literally empty and the portal's own home content returns HTTP 401 — there is no self-serve signup, no public API reference, no published rates/availability/booking API, no sandbox, no SDK, no changelog and no exit path. The only Marriott OpenAPI documents that can be read without a contract are eight internal and partner-facing specifications left publicly readable on SwaggerHub under the "marriott-api" owner; six are mirrored here verbatim as evidence. Everything a developer would actually want is behind a partner relationship, a travel-agent registration, or a GDS or channel-manager contract.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Marriott International the way a machine reads it — 23 machine-readable artifacts across 6 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Marriott International scores 32.4/100 (thin), with a separate agent-readiness read of 32/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
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. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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How we profile Marriott International
Each block below is one kind of artifact we hold for Marriott International. 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 12
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.
Marriott International Actuator API
The Actuator API from Marriott International — 1 operation(s) for actuator.
Marriott International Auth API
Authorization related endpoints.
Marriott International Data API
The Data API from Marriott International — 1 operation(s) for data.
Marriott International Data Collection Event API
The Data Collection Event API from Marriott International — 1 operation(s) for data collection event.
Marriott International FreedomPay Freeway Service API
The FreedomPay Freeway Service API from Marriott International — 1 operation(s) for freedompay freeway service.
Marriott International Guest Validation API
Validates a given RN/LN against a property in cloud PMS.
Marriott International Internet Purchase Update API
Updates the user internet plan purchase in cloud PMS.
Marriott International Landing Page API
Provides the landing page URL based on request inputs.
Marriott International Loyalty API
The Loyalty API from Marriott International — 1 operation(s) for loyalty.
Marriott International Post Preview Submit API
The PostPreviewSubmit API from Marriott International — 1 operation(s) for postpreviewsubmit.
Marriott International Retrieve Configs Monitored By Config Watcher API
The RetrieveConfigsMonitoredByConfigWatcher API from Marriott International — 1 operation(s) for retrieveconfigsmonitoredbyconfigwatcher.
Marriott International Status API
The Status API from Marriott International — 1 operation(s) for status.
Scroll within the panel for all 12 ·
Open Collections 6
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
commerce-payment-processor
OPEN COLLECTIONData Collection API
OPEN COLLECTIONFinance Status Notifier Application
OPEN COLLECTIONHotel Operations ARA - Preview Submit API
OPEN COLLECTIONMerge/Transfer Request API - new TIP MMF Spec for sending Account Merge request to SF CLM
OPEN COLLECTIONTIP Internet Portal
OPEN COLLECTIONSecurity Posture 3
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.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Marriott International — 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.
Get Started 4
Portal, sign-up, and the first successful call
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 8
Authentication, authorization, and security posture
Scroll within the panel for all 8 ·
Operate 1
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Other 8
Properties that don't map to a standard resource type
Scroll within the panel for all 8 ·
← All providers · Data indexed from github.com/api-evangelist/marriott · machine-readable index on apis.io
This is an independent, third-party profile of Marriott International, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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