Cornerstone Building Brands

Cornerstone Building Brands MCP Server (WordPress MCP Adapter)

A live remote Model Context Protocol server served from the corporate WordPress estate under the `mcp` REST namespace. Two MCP routes are advertised in the route index — mcp-oauth-server and mcp-adapter-default-server — and www.cornerstonebuildingbrands.com publishes both RFC 8414 OAuth authorization-server metadata and RFC 9728 protected-resource metadata naming mcp-oauth-server as the protected resource. Authorization is OAuth 2.1 authorization-code with PKCE (S256), a single `mcp` scope, public clients (token_endpoint_auth_method none) and client-ID metadata documents; there is no dynamic client registration (/oauth/register 404s). The live tool set could not be enumerated: anonymous initialize and tools/list both return HTTP 401 (mcp_unauthorized on the OAuth server, rest_forbidden on the default adapter server), as does the wp-abilities/v1 registry that backs the tools. The server is platform-authored — the WordPress MCP Adapter running under the company's domain — not a Cornerstone-authored tool surface.

GitHub

Documentation

📖
Authentication
https://raw.githubusercontent.com/api-evangelist/cornerstone-building-brands/refs/heads/main/authentication/cornerstone-building-brands-authentication.yml

Other Resources

🔗
MCPServer
https://raw.githubusercontent.com/api-evangelist/cornerstone-building-brands/refs/heads/main/mcp/cornerstone-building-brands-mcp.yml
🔗
ToolCrosswalk
https://raw.githubusercontent.com/api-evangelist/cornerstone-building-brands/refs/heads/main/mcp/cornerstone-building-brands-tool-crosswalk.yml
🔗
OAuthScopes
https://raw.githubusercontent.com/api-evangelist/cornerstone-building-brands/refs/heads/main/scopes/cornerstone-building-brands-scopes.yml

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API entry from apis.yml

apis.yml Raw ↑ 
aid: cornerstone-building-brands:cornerstone-building-brands-mcp
name: Cornerstone Building Brands MCP Server (WordPress MCP Adapter)
description: 'A live remote Model Context Protocol server served from the corporate WordPress estate under
  the `mcp` REST namespace. Two MCP routes are advertised in the route index — mcp-oauth-server and mcp-adapter-default-server
  — and www.cornerstonebuildingbrands.com publishes both RFC 8414 OAuth authorization-server metadata
  and RFC 9728 protected-resource metadata naming mcp-oauth-server as the protected resource. Authorization
  is OAuth 2.1 authorization-code with PKCE (S256), a single `mcp` scope, public clients (token_endpoint_auth_method
  none) and client-ID metadata documents; there is no dynamic client registration (/oauth/register 404s).
  The live tool set could not be enumerated: anonymous initialize and tools/list both return HTTP 401
  (mcp_unauthorized on the OAuth server, rest_forbidden on the default adapter server), as does the wp-abilities/v1
  registry that backs the tools. The server is platform-authored — the WordPress MCP Adapter running under
  the company''s domain — not a Cornerstone-authored tool surface.'
tags:
- MCP
- Agents
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
baseURL: https://www.cornerstonebuildingbrands.com/wp-json/mcp/mcp-oauth-server
humanURL: https://www.cornerstonebuildingbrands.com/wp-json/mcp
properties:
- type: MCPServer
  url: mcp/cornerstone-building-brands-mcp.yml
- type: ToolCrosswalk
  url: mcp/cornerstone-building-brands-tool-crosswalk.yml
- type: OAuthScopes
  url: scopes/cornerstone-building-brands-scopes.yml
- type: Authentication
  url: authentication/cornerstone-building-brands-authentication.yml
x-evidence:
  protected_resource: https://www.cornerstonebuildingbrands.com/.well-known/oauth-protected-resource
  authorization_server: https://www.cornerstonebuildingbrands.com/.well-known/oauth-authorization-server
  http_status: 200
  tools_list_status: 401
  fetched: '2026-09-19'
x-surface: platform-generated
x-platform: wordpress
x-platform-surface: mcp-plugin