This plugin provides everything you need in order to display Ordnance Survey maps on your website.
You simply need to enter your API key in the plugin settings and place a short block of Twig code in your template (see Documentation).
All calls to the OS Maps API are proxied through the plugin, so that the API key remains hidden from the public.
The default configuration uses EPSG:27700 and the Road 27700 layer, however these can easily be changed with the advanced configuration options (see Documentation).
To install this plugin, search for its package name on the Plugin Store and click “Install”.