This plugin allows Moodle to use Elasticsearch as the search engine for Moodle's Global Search.
The following features are provided by this plugin: Multiple versions of Elasticsearch, File indexing, Request signing, compatible with Amazon Web Services (AWS), Respects Moodle Proxy settings, Image recognition and webservices.
This plugin provides Algolia integration for Moodle's Global Search.
Algolia is a hosted Search as a Service provider making it easy for websites to integrate search without any need to install/maintain additional servers.
It currently offers a free plan with 10k records and 100k API calls per month.