This Metadata Agent is supposed to be an extension to the webhook mechanism. On a metadata refresh it fetches the combined metadata and sends it as POST payload to a given webhook.
The output on the webhook looks something like
Array
(
[payload] => {
"title_sort": "Test",
"title": "Test Movie - The final Movie",
"root_file": "test_movie",
"summary": "I am a dummy summary of a movie",
"event": "metadata",
"ext": ".mp4",
"provider": "com.plexapp.agents.argustv",
"guid": "com.plexapp.agents.none://97c3089b8de993085107dd53c39de81df32a46ea?lang=xn",
"id": "565957"
}
)
Download
Source: https://github.com/daeks/Webhook-Agent.bundle
Installation
See the How do I manually install a channel? support article.