aid: 4r
name: 4R Systems
description: '4R (4R Systems, Inc.) is a Berwyn, Pennsylvania software company founded
  in 1999 that sells a cloud-based intelligent inventory optimization platform and
  planning service to retail chains. Its prescriptive-analytics products cover demand
  planning, replenishment planning, allocation planning, assortment optimization,
  markdown optimization and vendor order optimization, combining statistical and
  machine-learning forecasting with a managed "planning as a service" team. Customers
  reach the platform through a hosted web portal and scheduled data exchanges rather
  than a public developer API; 4R publishes no developer portal, documentation or
  machine-readable API contract on its public site.'
url: https://raw.githubusercontent.com/api-evangelist/4r/refs/heads/main/apis.yml
image: https://4rsystems.com/wp-content/uploads/2021/11/cropped-4R-logo.png
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-09-05'
modified: '2026-09-05'
position: Producing
tags:
- Company
- Retail
- Supply Chain
- Inventory Optimization
- Demand Planning
- Analytics
- Artificial Intelligence
- Software-as-a-Service
tags_raw:
- Company
- Retail
- Supply Chain
- Inventory Optimization
- Demand Planning
- Analytics
- Artificial Intelligence
- SaaS
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://4rsystems.com/
- type: About
  url: https://4rsystems.com/company/
- type: Blog
  url: https://4rsystems.com/blog/
- type: BlogRSS
  url: https://4rsystems.com/feed/
- type: Newsroom
  url: https://4rsystems.com/4r-news/
- type: Support
  url: https://4rsystems.com/contact-4r/
- type: PrivacyPolicy
  url: https://4rsystems.com/4r-privacy-policy/
- type: LinkedIn
  url: https://www.linkedin.com/company/4r-systems
- type: Twitter
  url: https://twitter.com/4RSystems
- type: YouTube
  url: https://www.youtube.com/channel/UCKqhLIeu0tSVow0C0yr7dbA
- type: Login
  url: https://portal.4rsystems.com/
- type: Plans
  url: plans/4r-plans-pricing.yml
- type: LLMsTxt
  url: llms/4r-llms.txt
- type: DomainSecurity
  url: security/4r-domain-security.yml
x-enrichment:
  date: '2026-09-05'
  status: minimal
  artifacts_added: 4
  pass: local-v3
x-coverage:
  state: none
  reason: no-developer-program
  detail: >-
    4R Systems sells a hosted retail inventory optimization platform whose only public
    surfaces are a WordPress marketing site and a Microsoft-identity customer portal at
    portal.4rsystems.com — the site never uses the word API, integration is described
    only as "data exchanges and web portal access", and every spec and /.well-known/
    path probed on all four hosts returned 404.
  evidence:
  - url: https://4rsystems.com/openapi.json
    status: 404
  - url: https://4rsystems.com/.well-known/api-catalog
    status: 404
  - url: https://portal.4rsystems.com/swagger/v1/swagger.json
    status: 404
  - url: https://4rsystems.com/
    status: 200
  checked: '2026-09-05'