Cliffs Natural Resources website screenshot

Cliffs Natural Resources

Cliffs Natural Resources is the legacy corporate name for what is now Cleveland-Cliffs Inc., a major mining and natural resources company that produces iron ore pellets primarily for steelmaking customers in North America. The company was renamed Cleveland-Cliffs in 2017 and the canonical profile lives at the cleveland-cliffs repo. Cliffs Natural Resources / Cleveland-Cliffs does not publish a public developer portal or general-purpose REST API surface.

Cliffs Natural Resources is profiled on the APIs.io network. Tagged areas include Iron Ore, Manufacturing, Mining, Steel, and Steelmaking.

Cliffs Natural Resources’ developer surface includes engineering blog and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
9.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
Iron OreManufacturingMiningSteelSteelmaking

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 9.3/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 2.1 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
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/cliffs-natural-resources: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Cliffs Natural Resources Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Press 5

Recent news and press coverage referencing this provider.

Cliffs Natural Resources Inc. Celebrates 170 Years of Mining

2026-05-25

Cleveland-Cliffs Vs GRAY MEDIA -A: Which is a Better Buy ...

2026-05-25

Cleveland-Cliffs Reports First-Quarter 2026 Results

2026-05-25

Cliffs Natural Resources renames itself Cleveland-Cliffs Inc.

2026-05-25

ANNUAL REPORT 2024

2026-05-25

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy

Company 5

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Investor Relations
Investor Relations
 Newsroom
Newsroom
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

Canonical Profile
Canonical Profile

Source (apis.yml)

apis.yml Raw ↑ 
aid: cliffs-natural-resources
name: Cliffs Natural Resources
url: https://raw.githubusercontent.com/api-evangelist/cliffs-natural-resources/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
created: '2026-03-23'
modified: '2026-04-26'
type: Index
access: 3rd-Party
position: Consumer
specificationVersion: '0.19'
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/cliffs-natural-resources.png
kind: company
tags:
- Iron Ore
- Manufacturing
- Mining
- Steel
- Steelmaking
description: Cliffs Natural Resources is the legacy corporate name for what is now Cleveland-Cliffs Inc., a major mining and
  natural resources company that produces iron ore pellets primarily for steelmaking customers in North America. The company
  was renamed Cleveland-Cliffs in 2017 and the canonical profile lives at the cleveland-cliffs repo. Cliffs Natural Resources
  / Cleveland-Cliffs does not publish a public developer portal or general-purpose REST API surface.
apis: []
artifacts:
- aid: cliffs-natural-resources:website
  name: Cleveland-Cliffs (formerly Cliffs Natural Resources) Website
  tags:
  - Corporate Website
  - Steel
  humanURL: https://www.clevelandcliffs.com
  properties:
  - url: https://www.clevelandcliffs.com
    type: Website
  description: The renamed Cleveland-Cliffs corporate website covering products, operations, sustainability, and investor
    information for the company formerly known as Cliffs Natural Resources.
common:
- type: DomainSecurity
  url: security/cliffs-natural-resources-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/cleveland-cliffs
- type: Website
  url: https://www.clevelandcliffs.com
- type: Investor Relations
  url: https://www.clevelandcliffs.com/investors
- type: Newsroom
  url: https://www.clevelandcliffs.com/news
- type: PrivacyPolicy
  url: https://www.clevelandcliffs.com/privacy-policy
- type: Canonical Profile
  url: https://raw.githubusercontent.com/api-evangelist/cleveland-cliffs/refs/heads/main/apis.yml
- url: https://www.clevelandcliffs.com/news/news-releases/rss
  type: Blog
maintainers:
- FN: Kin Lane
  email: kinlane@gmail.com