Add MCP server

[chriszarate]

Adds an MCP server via WP Feature API + WordPress MCP. This allows us to implement custom functionality and expose it to agentic tools. Here is GitHub Copilot Chat in VS Code using MCP to list the data sources in my local environment, with UUIDs and code snippets:

Screen.Recording.2025-06-10.at.15.08.05.mov

This was an experiment to make sure MCP was possible, but I additional strong use cases don't come immediately to mind. What would you like to see integrated with MCP?

Try it

1. Restart your local environment to pick up the new plugins defined in .wp-env.json.
2. Go to Settings > MCP > Authentication and create a JWT token.
3. Start the MCP server inspector:

npx @modelcontextprotocol/inspector \
  -e WP_API_URL=http://localhost:8888/ \
  -e JWT_TOKEN=your-jwt-token-here \
  npx @automattic/mcp-wordpress-remote@latest

4. Hit "Connect".
5. 4. Navigate to "Tools" and "List tools".
6. Select the wp_feature_list-remote-data-block-data-sources tool, and run.

[github-actions]

Test this PR in WordPress Playground.