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MCP vs REST API in WordPress

WordPress architecture

MCP vs REST API in WordPress

REST API and MCP solve related problems, but they are not the same. REST exposes resources and endpoints; MCP organizes tools and context for AI clients.

What the REST API provides

The WordPress REST API lets applications query and modify resources through HTTP routes. It is a stable foundation for integrations and automation.

What MCP provides

MCP describes capabilities as tools that a compatible client can discover and use within a conversation or agent workflow.

REST API

Ideal for programmatic integrations based on resources, routes and HTTP operations.

MCP

Ideal for exposing specific actions to assistants and agents through a defined tool contract.

They are not mutually exclusive

An MCP implementation can use existing APIs internally. Birlo Bridge combines specific tools with permissions, scopes, approvals and auditing so the client does not need to know every WordPress endpoint.

When to use each approach