# Cliffs Natural Resources (now Cleveland-Cliffs Inc.) > Cliffs Natural Resources is the legacy corporate name for what is now Cleveland-Cliffs Inc., > a North American mining and steelmaking company that produces iron ore pellets and flat-rolled > steel. The company was renamed Cleveland-Cliffs in 2017; the canonical API Evangelist profile > lives at the cleveland-cliffs repository. This file is generated by API Evangelist from the > catalog record — it is NOT published by the company. ## Status: no public API Cleveland-Cliffs publishes no public developer portal, no API reference, no OpenAPI/AsyncAPI/GraphQL contract, no MCP server, no A2A agent card and no `/llms.txt`. Probed 2026-09-05: `developer.`, `api.` and `docs.clevelandcliffs.com` do not resolve; every `/.well-known/*`, `/openapi.json`, `/swagger.json`, `/api-docs` and `/llms.txt` path on `clevelandcliffs.com` (and `www.`) returns HTTP 404. The legacy `cliffsnaturalresources.com` domain no longer resolves. Business partners integrate through login-gated web portals and email, not a documented API. Do not attempt to construct or guess an endpoint for this company. ## Company - [Cleveland-Cliffs website](https://www.clevelandcliffs.com): Corporate site — products, operations, sustainability. - [Investor Relations](https://www.clevelandcliffs.com/investors): SEC filings, financial reports, earnings materials. - [Newsroom](https://www.clevelandcliffs.com/news): Press releases and company announcements. - [News releases RSS](https://www.clevelandcliffs.com/news/news-releases/rss): Machine-readable press-release feed — the only structured public feed found. - [Privacy Policy](https://www.clevelandcliffs.com/privacy-policy): Corporate privacy notice. - [Contact](https://www.clevelandcliffs.com/contact): Corporate contact routes. ## Partner and supplier portals (login-gated, not APIs) - [Doing Business](https://www.clevelandcliffs.com/doing-business): Entry point for suppliers, customers and carriers. - [For Suppliers](https://www.clevelandcliffs.com/doing-business/for-suppliers): Names the supplier portals and the email-based invoice routes. - [Cliffs CSC](https://cert.cliffssteel.com/): Customer service centre login (mill test certificates); credentials required. ## Optional - [Canonical profile: cleveland-cliffs](https://raw.githubusercontent.com/api-evangelist/cleveland-cliffs/refs/heads/main/apis.yml): The current-name API Evangelist record this legacy alias defers to. - [This record](https://raw.githubusercontent.com/api-evangelist/cliffs-natural-resources/refs/heads/main/apis.yml): APIs.json/apis.yml index for the legacy Cliffs Natural Resources name.