# My WordPress (WordPress Playground) > My WordPress (`https://my.wordpress.net/`) is a free, private, persistent WordPress instance running entirely in the browser via WebAssembly and Origin Private File System (OPFS), powered by WordPress Playground. ## Browser Agent Integration (WebMCP / `document.modelContext`) When a browser exposes `document.modelContext`, my.wordpress.net registers structured tools for AI agents. Chrome requires the WebMCP origin trial or the `chrome://flags/#enable-webmcp-testing` flag. ChatGPT desktop built-in browser Site Tools require eligible account and model access and a page that provides matching tools: - **PHP & HTTP Execution:** `playground_execute_php`, `playground_request` - **Navigation & Inspection:** `playground_navigate`, `playground_get_current_url`, `playground_get_site_info`, `playground_list_emails` - **Filesystem Management:** `playground_read_file`, `playground_write_file`, `playground_list_files`, `playground_mkdir`, `playground_delete_file`, `playground_delete_directory`, `playground_file_exists` - **Site Management:** `playground_list_sites`, `playground_save_in_browser`, `playground_rename_site`, `playground_get_website_url` - **WordPress Plugin WebMCP Proxy:** WebMCP tools registered inside the WordPress iframe by plugins are automatically proxied onto the top-level `document.modelContext` unless their names conflict with Playground’s built-in tools. ## Related Resources - [WordPress Playground Index (llms.txt)](https://playground.wordpress.net/llms.txt): Full Query API, Blueprints, and developer tool reference - [Documentation Index (llms.txt)](https://wordpress.github.io/wordpress-playground/llms.txt): Complete Markdown index of WordPress Playground documentation - [Source Code](https://github.com/WordPress/wordpress-playground): GitHub repository (GPL-2.0-or-later)