WordPress MCP Adapter 🔌 MCP server Open source

What it is

The MCP Adapter is the official WordPress project that turns a WordPress site into an MCP server. It bridges the WordPress Abilities API (actions registered by core, plugins and themes) to MCP tools, resources and prompts, so an AI client can discover and run site actions with WordPress permission checks. It supersedes Automattic's earlier wordpress-mcp plugin, which is now archived.

Key features

• Converts registered abilities into MCP tools, resources and prompts automatically
• Default server at /wp-json/mcp/mcp-adapter-default-server
• HTTP transport and STDIO transport through WP-CLI
• Multiple servers with granular permissions
• Abilities are private by default and must opt in via meta.public
• Pluggable error handling and observability

How to install

Install the plugin from the latest GitHub release, for example wp plugin install https://github.com/WordPress/mcp-adapter/releases/latest/download/mcp-adapter.zip --activate, or add it with composer require wordpress/mcp-adapter. Then connect a client over HTTP to the default server URL or over STDIO with WP-CLI; the repo's CLI guide has Claude Desktop examples. It is not yet on WordPress.org.

Pricing and rights

Free and GPL-2.0-or-later. You need your own WordPress hosting. What the agent can do depends on which abilities your plugins expose and the user role you authenticate as.

Who it is for

WordPress developers and publishers who want Claude or another agent to draft, update and manage content on their own site with proper permissions.

Verdict

The long-term, official path for WordPress and MCP, with sensible private-by-default security. Out of the box the tool set depends on what abilities are registered, so non-developers may find it bare until plugins adopt the Abilities API.