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", { "ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount", "Hashtag": "as:Hashtag" } ], "id": "https://mastodon.online/users/zymurgic/statuses/114015271472129787", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-02-16T19:42:57Z", "url": "https://mastodon.online/@zymurgic/114015271472129787", "attributedTo": "https://mastodon.online/users/zymurgic", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.online/users/zymurgic/followers" ], "sensitive": false, "atomUri": "https://mastodon.online/users/zymurgic/statuses/114015271472129787", "inReplyToAtomUri": null, "conversation": "tag:mastodon.online,2025-02-16:objectId=463344019:objectType=Conversation", "content": "<p>Just looked at my .ssh/known_hosts file. There&#39;s systems in there that haven&#39;t existed for 29 years. </p><p>I don&#39;t think I need those entries any more, and ssh-keygen is complaining that they&#39;re in an unknown format.</p><p><a href=\"https://mastodon.online/tags/isp\" class=\"mention hashtag\" rel=\"tag\">#<span>isp</span></a> <a href=\"https://mastodon.online/tags/historical\" class=\"mention hashtag\" rel=\"tag\">#<span>historical</span></a></p>", "contentMap": { "en": "<p>Just looked at my .ssh/known_hosts file. There&#39;s systems in there that haven&#39;t existed for 29 years. </p><p>I don&#39;t think I need those entries any more, and ssh-keygen is complaining that they&#39;re in an unknown format.</p><p><a href=\"https://mastodon.online/tags/isp\" class=\"mention hashtag\" rel=\"tag\">#<span>isp</span></a> <a href=\"https://mastodon.online/tags/historical\" class=\"mention hashtag\" rel=\"tag\">#<span>historical</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.online/tags/isp", "name": "#isp" }, { "type": "Hashtag", "href": "https://mastodon.online/tags/historical", "name": "#historical" } ], "replies": { "id": "https://mastodon.online/users/zymurgic/statuses/114015271472129787/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.online/users/zymurgic/statuses/114015271472129787/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.online/users/zymurgic/statuses/114015271472129787/replies", "items": [] } }, "likes": { "id": "https://mastodon.online/users/zymurgic/statuses/114015271472129787/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mastodon.online/users/zymurgic/statuses/114015271472129787/shares", "type": "Collection", "totalItems": 0 } }