Simon Property Group

Simon Property Group is the largest retail real estate investment trust (REIT) in the United States, owning, developing, and managing premier shopping, dining, entertainment, and mixed-use destinations. Simon's portfolio includes an interest in 254 properties: traditional malls, premium outlets, Mills centers, lifestyle centers, and other retail properties in North America, Europe, and Asia. The company operates ShopSimon, an e-commerce platform, and Simon Innovation Group to advance retail technology innovation. Simon had trailing twelve-month revenue of approximately $6.36 billion as of 2025 and a market capitalization of approximately $67 billion.

Simon Property Group is listed with 1 API on the APIs.io network. Tagged areas include Commercial Real Estate, E-Commerce, Fortune 500, Malls, and Outlet Centers.

The Simon Property Group catalog on APIs.io includes 1 JSON-LD context.

Simon Property Group’s developer surface includes product news and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

16.1/100 emerging ▬ flat Agent 1/100 human only Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

AccessEnterprise

1 API

Commercial Real Estate E-Commerce Fortune 500MallsOutlet CentersReal Estate REIT Retail

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 16.1/100 · emerging

Contract Quality 2.3 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 0.9 / 17

Operational Transparency 1.7 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.5 / 15

Agent readiness — 1/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/simon-property-group: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
REITs and Real Estate Securities (SEC REIT registrants, EPRA)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 1

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

ShopSimon Retailer API

ShopSimon is Simon's e-commerce platform integrating online and offline retail. The ShopSimon Retailer Hub provides APIs for sellers to integrate product listings, inventory dat...

Pricing Plans 1

Published pricing tiers and plan structures.

Simon Property Group Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Simon Property Group Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

Simon Property Group Finops

FINOPS

Semantic Vocabularies 1

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

Simon Property Group Context

43 classes · 0 properties

JSON-LD

Security Posture 2

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

Simon Property Group Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Simon Property Group Vulnerability Disclosure

security.txt · contact published

SECURITY

Press 5

Recent news and press coverage referencing this provider.

Simon® Takes Holiday Shopping to a New Level Thanks to AI

Simon Property Group has explored converting some mall ...

Simon Property Group - The #1 mall company in the US ...

Simon Property Group Announces the Passing of David ...

Simon Property Group's AI Strategy: Analysis of ...

Resources

Get Started 1

Portal, sign-up, and the first successful call

Business Portal

Business Portal

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

Seller Support

Seller Support

Contact

Contact

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 5

The organization behind the API

LinkedIn

Website

Website

Website

Website

Investor Relations

Investor Relations

News

News

Other 3

Properties that don't map to a standard resource type

ShopSimon

ShopSimon

Innovation Group

Innovation Group

Annual Report

Annual Report

Source (apis.yml)

aid: simon-property-group
name: Simon Property Group
description: 'Simon Property Group is the largest retail real estate investment trust (REIT) in the United States, owning,
  developing, and managing premier shopping, dining, entertainment, and mixed-use destinations. Simon''s portfolio includes
  an interest in 254 properties: traditional malls, premium outlets, Mills centers, lifestyle centers, and other retail properties
  in North America, Europe, and Asia. The company operates ShopSimon, an e-commerce platform, and Simon Innovation Group to
  advance retail technology innovation. Simon had trailing twelve-month revenue of approximately $6.36 billion as of 2025
  and a market capitalization of approximately $67 billion.'
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
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/simon-property-group.png
tags:
- Commercial Real Estate
- E-Commerce
- Fortune 500
- Malls
- Outlet Centers
- Real Estate
- REIT
- Retail
tags_raw:
- Commercial Real Estate
- E-Commerce
- Fortune 500
- Malls
- Outlet Centers
- Real Estate
- REIT
- Retail
- Real-Estate
url: https://raw.githubusercontent.com/api-evangelist/simon-property-group/refs/heads/main/apis.yml
created: '2026-03-24'
modified: '2026-05-02'
specificationVersion: '0.23'
apis:
- aid: simon-property-group:shopsimon
  name: ShopSimon Retailer API
  description: ShopSimon is Simon's e-commerce platform integrating online and offline retail. The ShopSimon Retailer Hub
    provides APIs for sellers to integrate product listings, inventory data, and order management with the ShopSimon marketplace.
    The platform facilitates product catalog sync, offer management, and order fulfillment for retail partners selling on
    ShopSimon.
  humanURL: https://sellersupport.shopsimon.com/
  tags:
  - E-Commerce
  - Inventory
  - Marketplace
  - Order
  - Product
  - Retail
  tags_raw:
  - E-Commerce
  - Inventory
  - Marketplace
  - Orders
  - Products
  - Retail
  properties:
  - type: Documentation
    url: https://sellersupport.shopsimon.com/hc/en-us/articles/9632618154647-API-Integration
  - type: GettingStarted
    url: https://sellersupport.shopsimon.com/hc/en-us/articles/28034776101911-Getting-Started
common:
- type: Plans
  url: plans/simon-property-group-plans-pricing.yml
- type: RateLimits
  url: rate-limits/simon-property-group-rate-limits.yml
- type: FinOps
  url: finops/simon-property-group-finops.yml
- type: VulnerabilityDisclosure
  url: security/simon-property-group-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/simon-property-group-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/simon-property-group
- type: Website
  url: https://www.simon.com
- type: Website
  url: https://www.simonpropertygroup.com
- type: Business Portal
  url: https://business.simon.com
- type: ShopSimon
  url: https://www.shopsimon.com
- type: Seller Support
  url: https://sellersupport.shopsimon.com
- type: Investor Relations
  url: https://investors.simon.com
- type: Innovation Group
  url: https://www.simonpropertygroup.com/simon-innovation-group
- type: Contact
  url: https://www.simon.com/contact
- type: Annual Report
  url: https://investors.simon.com/financial-information/annual-reports
- type: News
  url: https://investors.simon.com/news-releases
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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