What changed: WooCommerce is removing its old MCP endpoint and the abilities specific to that endpoint. MCP connections will use the active WordPress MCP Adapter plugin, with a WordPress username and application password replacing the WooCommerce REST API key used by the old connection.
Who is affected
Businesses whose MCP clients connect to their stores through the old WooCommerce MCP endpoint using a WooCommerce REST API key are affected. Extension developers relying on the old endpoint’s abilities, filters or MCP classes loaded by WooCommerce are also affected.
What it means for your business
For businesses connecting an AI assistant to a WooCommerce store through the old MCP endpoint, this means changing the connection settings to use the WordPress adapter.
What to do
If you use the old WooCommerce MCP connection, install and activate the MCP Adapter plugin. Create a WordPress application password for a user with only the capabilities your client needs. Set the client endpoint to /wp-json/mcp/mcp-adapter-default-server and configure the username and application password. Complete these changes before testing or upgrading to the new version.
When it takes effect
The change takes effect with WooCommerce 11.3; the source gives no calendar date.
Source: https://developer.woocommerce.com/2026/10/21/woocommerce-11-3-mcp/
