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Tidetech use Leaflet in their client user interface, and there are a number of plugins for Leaflet that enable single-image layers, such as leaflet.wms.
Usage and Permissions
Demonstration WMS Endpoint
The demonstration service is not locked down and can be used to develop systems against. http://wms.tidetech.org/geoserver/public/wms
Production WMS Endpoint
In order to access production data, which is updated multiple times a day, you need to authenticate using an API Key. API keys can be accessed by logging into your Tidetech account on the Tidetech website: https://www.tidetech.org/account/.
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