The four pieces that already exist
None of this has to be invented. All of it can be installed today.
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Connectors API — in core since WordPress 7.0
One place for the keys to AI services, under Settings → Connectors. Every plugin used to build its own field for that. And a plugin may only use the key once you have approved it.
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MCP Adapter — the door outward
Makes your own WordPress site reachable by an AI agent. This is the official route from the WordPress project itself; the older Automattic plugin that started it has been retired.
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Meta Box — the AI builds the structure
Through the new Abilities an agent can create and fill post types, taxonomies, field groups and field values. Not just writing text — building the frame the content later sits in.
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Etch — the AI works inside the builder
The connector attaches an agent to your open builder tab: create pages, set styles, build components. What you see on screen changes while the agent works.