KZB Studio

KZB AI Cart Assistant for WooCommerce connects your store to AI systems using the open Model Context Protocol (MCP). It also adds an optional AI-powered chat widget to your storefront, powered by the WordPress AI Client built into WordPress 7.0.
The guiding principle: automation stops at the cart. The plugin never initiates checkout or processes payments — those actions always require a human.
<h4>What the free version includes</h4>
<ul>
<li>MCP server — REST endpoints that expose your product catalog and allow authenticated AI agents to add products to a customer’s cart (<code>add_to_cart</code>) and view cart contents (<code>view_cart</code>)</li>
<li>Storefront chatbot — floating chat widget powered by the WordPress AI Client; customers can ask product questions and add items to their cart through conversation</li>
<li>Bearer token authentication — per-user tokens that let an AI agent act on a specific customer’s behalf</li>
<li>My Account integration — customers can generate and revoke their own tokens from the My Account page</li>
<li>Admin panel — category filters, security limits (max quantity, max cart value), token management, and an audit log of every AI action</li>
<li>Privacy-first — respects the Global Privacy Control (GPC) signal; no API keys are stored by the plugin</li>
</ul>
<h4>Pro version</h4>
The KZB AI Cart Assistant Pro extension unlocks additional MCP tools and support for variable (configurable) products:
<ul>
<li><code>remove_from_cart</code> — remove a specific product from the cart</li>
<li><code>update_cart</code> — change the quantity of a cart item (quantity 0 removes the item)</li>
<li><code>clear_cart</code> — empty the entire cart</li>
<li>Variable product support — add product variants by specifying a variation ID</li>
</ul>
The Pro extension is available at <a href="https://kzbstudio.pl" rel="nofollow ugc">kzbstudio.pl</a>.
<h4>MCP Server</h4>
AI agents discover the MCP endpoint via a <code><link rel="mcp-server"></code> tag automatically injected into your site’s <code><head></code>. The agent can then browse the product catalog (JSON-LD format) and call tools on behalf of an authenticated customer.
Typical agent flow:
<ol>
<li>Agent reads <code><link rel="mcp-server"></code> from your page HTML</li>
<li><code>GET /wp-json/kzbaca/v1/mcp</code> — reads available tools and the product catalog URL</li>
<li><code>GET /wp-json/kzbaca/v1/mcp/resources</code> — fetches the product list</li>
<li><code>POST /wp-json/kzbaca/v1/mcp/tools/add_to_cart</code> — adds a product (Bearer token required)</li>
<li>Agent returns the cart URL to the customer for payment</li>
</ol>
<h4>External Services</h4>
This plugin connects to external AI services only when the chatbot is enabled and an AI provider is configured in WordPress Settings → AI. No data is sent to any external service when the chatbot is disabled (the default state).
WordPress AI Client 
The storefront chatbot uses the WordPress AI Client (built into WordPress 7.0) to communicate with your configured AI provider. The AI provider and its privacy policy are managed in Settings → AI in your WordPress admin — this plugin does not communicate directly with any AI provider. 
Data sent: conversation messages, product catalog summary, cart context.
No data is ever sent to the plugin author’s servers.

KZB AI Cart Assistant for WooCommerce

Allow AI agents and a storefront chatbot to browse your product catalog and add items to customers' carts. Payment is always completed by a human.

Mescio

WebMCP Bridge exposes your WordPress (and WooCommerce) functionality as <a href="https://github.com/webmcp/webmcp-spec" rel="nofollow ugc">WebMCP</a> tools that AI agents can discover and invoke directly in the browser.
Once installed, your site automatically becomes “agent-friendly”:
<ul>
<li>AI agents can search posts, pages, and custom post types</li>
<li>AI agents can browse products, manage the cart, apply coupons (WooCommerce)</li>
<li>AI agents can read navigation menus and site metadata</li>
<li>Developers can register custom tools in minutes via a simple PHP API</li>
</ul>
What is WebMCP?
WebMCP is a new browser-native protocol (currently in Chrome Early Preview) that lets web apps expose their functionality as structured “tools” that AI agents can invoke — without needing to screenshot or parse HTML. Think of your website as an MCP server running entirely client-side.
How it works
<ol>
<li>Install and activate the plugin</li>
<li>Enable the features you want from Settings → WebMCP Bridge</li>
<li>Your tool manifest is immediately available at <code>/wp-json/webmcp-bridge/v1/manifest</code></li>
<li>AI agents (or any JavaScript code) can call your tools via REST API or the native browser WebMCP API</li>
</ol>
Included tools
Core:
<ul>
<li><code>search_posts</code> — Search posts, pages, or custom post types</li>
<li><code>get_post</code> — Retrieve a single post by ID or slug</li>
<li><code>get_menu</code> — Return navigation menu items</li>
<li><code>get_categories</code> — List taxonomy terms</li>
<li><code>get_site_info</code> — Site name, description, URL, language</li>
<li><code>submit_contact_form</code> — Contact Form 7 integration</li>
</ul>
WooCommerce (requires WooCommerce plugin):
<ul>
<li><code>woo_search_products</code> — Search by keyword, category, price range</li>
<li><code>woo_get_product</code> — Full product details including attributes</li>
<li><code>woo_add_to_cart</code> — Add a product to the cart</li>
<li><code>woo_get_cart</code> — Current cart contents and totals</li>
<li><code>woo_remove_from_cart</code> — Remove an item by cart key</li>
<li><code>woo_apply_coupon</code> — Apply a coupon code</li>
<li><code>woo_get_checkout_fields</code> — Return checkout field schema</li>
<li><code>woo_get_product_categories</code> — List all product categories</li>
</ul>
Even more powerful with Mescio for Agents
WebMCP Bridge integrates automatically with the Mescio for Agents plugin. When both plugins are active, two additional tools are unlocked:
<ul>
<li><code>get_markdown_content</code> — Returns any post or page as clean Markdown, the format AI models consume most efficiently. Instead of raw HTML, agents receive structured, token-optimized content ready for reasoning and summarization.</li>
<li><code>get_llms_txt</code> — Exposes the site-wide <code>llms.txt</code> context document (index or full variant), giving agents an instant, structured overview of what the site is about, who it is for, and what content is available — before they even start searching.</li>
</ul>
Together, the two plugins turn your WordPress site into a fully AI-native content source: WebMCP Bridge handles the tool layer (what agents can do), while Mescio for Agents handles the content layer (what agents can read and understand).
Privacy
This plugin does not collect, store, or transmit any user data to external servers. All tool execution happens locally within your WordPress installation. No telemetry, no phone-home, no external API calls.

WebMCP Bridge

Make your WordPress site natively AI-agent friendly via the WebMCP protocol — no backend server required.

KZB AI Cart Assistant for WooCommerce vs WebMCP Bridge