Westlake website screenshot

Westlake

Westlake Corporation is a global Fortune 500 manufacturer and supplier of materials and innovative products that enhance life every day. The company produces chemical materials and building products across multiple sectors including packaging, healthcare, automotive, consumer goods, and construction. Westlake operates through two primary segments: Performance and Essential Materials (PEM) and Housing and Infrastructure Products (HIP), with net sales of approximately $11 billion annually.

Westlake is profiled on the APIs.io network. Tagged areas include Chemicals, Polymers, Building Products, Manufacturing, and Fortune 500.

Westlake’s developer surface includes developer portal, engineering blog, and 5 more developer resources.

13.2/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs 5 Features 4 Use Cases
ChemicalsPolymersBuilding ProductsManufacturingFortune 500

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 13.2/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 4.2 / 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/westlake: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Features 5

Notable capabilities this provider offers.

Performance and Essential Materials

Chemical segment producing ethylene, polyethylene, PVC, chlor-alkali, epoxy resins, and related materials for industrial applications.

Housing and Infrastructure Products

Building products segment manufacturing PVC pipe, vinyl siding, windows, doors, and related infrastructure materials.

Global Manufacturing

Manufacturing footprint spanning North America, Europe, and Asia with approximately 15,000 employees and multiple production facilities.

Recycled Materials

Circular economy initiatives producing recycled plastic materials and sustainable chemical feedstocks.

Specialty Compounds

Custom compounding and specialty formulations for Dimex, Global Compounds, and other specialty product lines.

Security Posture 1

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

Westlake Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Use Cases 4

What developers build with this provider.

Industrial Packaging

Polyethylene and PVC resin supply for rigid and flexible packaging applications across consumer goods and industrial markets.

Construction Infrastructure

PVC pipe and fittings systems for water, wastewater, and industrial piping applications in residential and commercial projects.

Vinyl Building Envelope

Vinyl siding, windows, and trim products for energy-efficient residential building envelopes and renovation projects.

Chemical Synthesis

Chlor-alkali and caustic soda products as inputs for chemical synthesis, water treatment, and industrial process chemistry.

Integrations 4

Pre-built integrations with other platforms and tools.

SAP ERP

Enterprise resource planning integration for supply chain, procurement, and financial management across global operations.

Microsoft Azure

Cloud infrastructure services supporting digital transformation and enterprise technology initiatives.

Microsoft Power BI

Business intelligence and analytics platform for operational reporting and financial performance monitoring.

EDI Connectivity

Electronic Data Interchange integration with trading partners for order management and supply chain transactions.

Resources

Get Started 1

Portal, sign-up, and the first successful call

Access & Security 1

Authentication, authorization, and security posture

Commercial 2

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: westlake
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/westlake.png
url: https://raw.githubusercontent.com/api-evangelist/westlake/refs/heads/main/apis.yml
name: Westlake
description: 'Westlake Corporation is a global Fortune 500 manufacturer and supplier of materials and innovative products
  that enhance life every day. The company produces chemical materials and building products across multiple sectors including
  packaging, healthcare, automotive, consumer goods, and construction. Westlake operates through two primary segments: Performance
  and Essential Materials (PEM) and Housing and Infrastructure Products (HIP), with net sales of approximately $11 billion
  annually.'
tags:
- Chemicals
- Polymers
- Building Products
- Manufacturing
- Fortune 500
created: '2026-03-21'
modified: '2026-05-03'
apis: []
common:
- type: DomainSecurity
  url: security/westlake-domain-security.yml
- type: Website
  url: https://www.westlake.com
- type: Portal
  url: https://www.westlake.com/products
- type: Blog
  url: https://www.westlake.com/news
- type: LinkedIn
  url: https://www.linkedin.com/company/westlake-corporation
- type: TermsOfService
  url: https://www.westlake.com/legal
- type: PrivacyPolicy
  url: https://www.westlake.com/privacy-policy
- type: Features
  data:
  - name: Performance and Essential Materials
    description: Chemical segment producing ethylene, polyethylene, PVC, chlor-alkali, epoxy resins, and related materials
      for industrial applications.
  - name: Housing and Infrastructure Products
    description: Building products segment manufacturing PVC pipe, vinyl siding, windows, doors, and related infrastructure
      materials.
  - name: Global Manufacturing
    description: Manufacturing footprint spanning North America, Europe, and Asia with approximately 15,000 employees and
      multiple production facilities.
  - name: Recycled Materials
    description: Circular economy initiatives producing recycled plastic materials and sustainable chemical feedstocks.
  - name: Specialty Compounds
    description: Custom compounding and specialty formulations for Dimex, Global Compounds, and other specialty product lines.
- type: UseCases
  data:
  - name: Industrial Packaging
    description: Polyethylene and PVC resin supply for rigid and flexible packaging applications across consumer goods and
      industrial markets.
  - name: Construction Infrastructure
    description: PVC pipe and fittings systems for water, wastewater, and industrial piping applications in residential and
      commercial projects.
  - name: Vinyl Building Envelope
    description: Vinyl siding, windows, and trim products for energy-efficient residential building envelopes and renovation
      projects.
  - name: Chemical Synthesis
    description: Chlor-alkali and caustic soda products as inputs for chemical synthesis, water treatment, and industrial
      process chemistry.
- type: Integrations
  data:
  - name: SAP ERP
    description: Enterprise resource planning integration for supply chain, procurement, and financial management across global
      operations.
  - name: Microsoft Azure
    description: Cloud infrastructure services supporting digital transformation and enterprise technology initiatives.
  - name: Microsoft Power BI
    description: Business intelligence and analytics platform for operational reporting and financial performance monitoring.
  - name: EDI Connectivity
    description: Electronic Data Interchange integration with trading partners for order management and supply chain transactions.
maintainers:
- FN: API Evangelist
  email: info@apievangelist.com
specificationVersion: '0.19'