Arch Coal
Arch Coal was a St. Louis-based producer and marketer of metallurgical and thermal coal, renamed Arch Resources in 2020. In January 2025 Arch Resources merged with CONSOL Energy in a merger of equals to form Core Natural Resources, Inc. (NYSE: CNR), headquartered in Canonsburg, Pennsylvania. The combined company operates the Pennsylvania Mining Complex, Leer, Leer South, West Elk, Black Thunder, and other mines across six U.S. states with 5,000+ employees, and holds stakes in East Coast marine export terminals. Core Natural Resources does not publish a public developer API. Its external digital surface is a corporate website at corenaturalresources.com plus a separate investor relations portal, both serving HTML and PDF only — the investor portal's /rss and /feed paths were probed on 2026-07-25 and every one returns HTML, not XML. Machine-readable company data is available only through third-party channels, namely the SEC's own EDGAR APIs.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles Arch Coal the way a machine reads it — 18 machine-readable artifacts across 1 API, 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 — Arch Coal scores 15.8/100 (emerging), with a separate agent-readiness read of 3/100 (human only). 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.
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
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<a href="https://providers.apievangelist.com/providers/arch-coal/"
title="Arch Coal on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/arch-coal.svg"
alt="Arch Coal Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/arch-coal/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/arch-coal/"
title="Arch Coal on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/arch-coal/card.svg"
alt="Arch Coal Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Arch Coal
Each block below is one kind of artifact we hold for Arch Coal. 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 1
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.
SEC EDGAR Filings (Core Natural Resources, CIK 1710366)
Machine-readable filing data for Core Natural Resources is available from the U.S. Securities and Exchange Commission, not from the company. The SEC EDGAR submissions API return...
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Arch Coal Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Arch Coal Finops
FINOPSFeatures 6
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Metallurgical Coal
Low-Vol (Beckley, Itmann), High-Vol A (Leer, Leer South), and High-Vol B (Mountain Laurel) metallurgical coals for blast furnace steelmaking — roughly 12 million tons annually.
High Calorific Value Thermal Coal
High CV thermal coal from the Pennsylvania Mining Complex and West Elk mine for power generation, cement, and industrial use — roughly 30 million tons annually.
Powder River Basin Thermal Coal
PRB sub-bituminous coal from Black Thunder and Coal Creek mines in Wyoming.
Marine Export Terminals
Ownership stakes in East Coast marine export terminals, with roughly 25 million tons of owned annual export capacity.
CONSOL Innovations
Advanced materials and critical mineral extraction research turning coal-based carbon into products for aerospace and other industries.
SEC Filings and Investor Reporting
Quarterly earnings, production and sales volume reporting, and SEC filings published as HTML and PDF through the investor relations portal and EDGAR.
Security Posture 1
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.
Use Cases 5
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
Investment Research
Analyze Core Natural Resources (NYSE:CNR) financial performance, production volumes, and market position through EDGAR filings and investor materials.
Merger and Lineage Tracking
Follow the Arch Coal → Arch Resources → Core Natural Resources lineage, including the CONSOL Energy merger of equals completed January 2025.
ESG and Safety Reporting
Access environmental, safety, and governance disclosures published through the corporate sustainability section.
Supply Chain and Procurement
Steel producers, utilities, and suppliers reference product specifications, terms and conditions, and the Supplier Code of Conduct.
Commodity Market Analysis
Track metallurgical and thermal coal production, export capacity, and sales volumes for commodity market research.
Integrations 2
Pre-built integrations with other platforms tell you where this provider already fits in a stack.
Pre-built integrations with other platforms and tools.
SEC EDGAR
All filings for CIK 0001710366 are available through EDGAR and the SEC's public JSON APIs at data.sec.gov.
NYSE
Shares trade on the New York Stock Exchange under the ticker CNR; market data flows through standard exchange and market data providers.
Resources
Every other property we hold for Arch Coal — 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 1
Portal, sign-up, and the first successful call
Access & Security 1
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 6
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/arch-coal · machine-readable index on apis.io
This is an independent, third-party profile of Arch Coal, 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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