# Cornerstone Building Brands MCP Server (WordPress MCP Adapter)

**Canonical:** https://apis.io/apis/cornerstone-building-brands/cornerstone-building-brands-mcp/  
**Provider:** Cornerstone Building Brands — https://apis.io/providers/cornerstone-building-brands/  
**Base URL:** https://www.cornerstonebuildingbrands.com/wp-json/mcp/mcp-oauth-server  
**Documentation:** https://www.cornerstonebuildingbrands.com/wp-json/mcp

Cornerstone Building Brands MCP Server (WordPress MCP Adapter) is one of 2 APIs that [Cornerstone Building Brands](https://apis.io/providers/cornerstone-building-brands/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include MCP and Agents. The published artifact set on APIs.io includes authentication docs.

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.

## Machine-readable artifacts (4)

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

## Other Cornerstone Building Brands APIs (1)

- [Cornerstone Building Brands Website (WordPress REST)](https://apis.io/apis/cornerstone-building-brands/cornerstonebuildingbrands-com-website-wordpress-rest/)

## Tags

MCP, Agents

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/cornerstone-building-brands/cornerstone-building-brands-mcp/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/cornerstone-building-brands/.