ActivityPub Viewer

A small tool to view real-world ActivityPub objects as JSON! Enter a URL or username from Mastodon or a similar service below, and we'll send a request with the right Accept header to the server to view the underlying object.

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{ "@context": [ "https://www.w3.org/ns/activitystreams", "http://joinmastodon.org/ns" ], "attachment": { "mediaType": "image/gif", "name": "Live stream preview", "type": "Image", "url": "https://watch.thepolarbear.co.uk/preview.gif?us=dQqOpe5HR" }, "attributedTo": "https://watch.thepolarbear.co.uk/federation/user/hamishtpb", "audience": "https://www.w3.org/ns/activitystreams#Public", "content": "<p>Hamish is on the air!</p><p>Music Monday - tunes with Hamish #Radio#Music #Live #Owncast</p><p><a class=\"hashtag\" href=\"https://directory.owncast.online/tags/owncast\">#owncast</a> <a class=\"hashtag\" href=\"https://directory.owncast.online/tags/streaming\">#streaming</a></p><p><a href=\"https://watch.thepolarbear.co.uk\">https://watch.thepolarbear.co.uk</a></p>", "id": "https://watch.thepolarbear.co.uk/federation/vQ3dpe5Hg", "published": "2025-02-24T18:56:26Z", "tag": [ { "href": "https://directory.owncast.online/tags/owncast", "name": "#owncast", "type": "Hashtag" }, { "href": "https://directory.owncast.online/tags/streaming", "name": "#streaming", "type": "Hashtag" }, { "href": "https://directory.owncast.online/tags/owncast", "name": "#owncast", "type": "Hashtag" } ], "to": "https://www.w3.org/ns/activitystreams#Public", "type": "Note" }