Dedicated MCP server
Nucleo registers an MCP server with its own functions. Agents work with the permissions of the user who gave consent.
MCP server for WordPress
WordPress MCP: the AI agent builds fast pages
Nucleo is an MCP server for WordPress with OAuth 2.1 authorization. The agent writes pages with blocks, and the quality engine checks the result before they go online.
OAuth 2.1Compiled on saveQuality engineWP-CLI
The problem
Access to content is not enough to build a site
You search for wordpress mcp because you want an AI agent to work on your site. Giving the agent access to content is not enough: you need pages that are orderly, fast and consistent.
Nucleo describes pages as JSON documents. The agent builds them with blocks, the compiler turns them into HTML and CSS on save, and the quality engine checks SEO and accessibility.
Features
What the agent finds in Nucleo
OAuth 2.1
User consent is always required. The token is valid only for the site's server, and the user can narrow the scopes.
Compiled on save
The compiler produces HTML and CSS when you save. The frontend receives a page that is already ready.
Quality engine
It checks SEO and accessibility. It flags, for example, two h1 headings on the same page.
WP-CLI
The wp nucleo commands export, import and sync the site into a folder that you can version with git.
No cost on every visit
The frontend does not contact external services and does not recalculate the page.
How to use it
Connect an agent to WordPress
- 1Install Nucleo
Upload the nucleo folder to wp-content/plugins, or install the zip from Plugins, Add New. The free version requires no license or account.
- 2Authorize the agent
The agent uses OAuth 2.1 with PKCE. You approve the consent screen in wp-admin and choose which scopes to grant.
- 3Sync the site
With WP-CLI you export the site to a folder and bring it back into the database with import or sync. Pages come back recompiled.
Questions
Questions about the WordPress MCP server
What is a WordPress MCP server?
It is an MCP server that exposes WordPress functions to an AI agent. Nucleo registers a dedicated server, with only Nucleo's functions.
Does the Nucleo MCP server require a license?
No. The free version includes the MCP server with OAuth 2.1 and requires no key or account.
How do I connect a WordPress MCP to Cursor?
Nucleo follows the MCP authorization spec with OAuth 2.1. Check the OAuth 2.1 setup in your client before you start.
Does the MCP server slow down the site?
No. Token checks happen only in MCP requests, not on the frontend. The compiler works on save.
Can an agent publish without my knowledge?
No. Each write requires the right scope, and publishing requires the publish permission. Every change stays in the history with its author, human or AI.
Do I need Node or Chrome?
No. Node and Chrome are not required. WordPress 6.9 or later and PHP 8.2 or later are needed.
Start
Install Nucleo and connect your first agent
The free plugin is in the WordPress repository. Nucleo Pro adds WooCommerce, multilingual sites and the CSS purger.