We'll create fresh WordPress site with Open Search installed. You have 20 minutes to test the plugin after that site we'll be deleted.
The plugin creates an OpenSearch Document for your blog.
It supports Google Chromes “Tab to Search” and “search_provider” WebExtension, Firefox’ “OpenSearch plugins”, Safaris “Quick Website Search”, and “custom searches” for Microsofts Edge browser.
From the spec:
Search clients can use OpenSearch description documents to learn about the public interface of a search engine. These description documents contain parameterized URL templates that indicate how the search client should make search requests. Search engines can use the OpenSearch response elements to add search metadata to results in a variety of content formats.
Other integrations and extensions: