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.social/users/benroyce/statuses/114738939125874453", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-24T15:01:09Z", "url": "https://mastodon.social/@benroyce/114738939125874453", "attributedTo": "https://mastodon.social/users/benroyce", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/benroyce/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/benroyce/statuses/114738939125874453", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-06-24:objectId=1031301738:objectType=Conversation", "content": "<p>Last year, astronomers detected a fast radio burst that got them excited as to a new discovery, but confused them as to the signal&#39;s power</p><p>When they pinpointed the signal it turned out to be... a <a href=\"https://mastodon.social/tags/NASA\" class=\"mention hashtag\" rel=\"tag\">#<span>NASA</span></a> satellite that died in 1964</p><p>They have some good theories as to how the zombie satellite fired off some signals but us <a href=\"https://mastodon.social/tags/StarTrek\" class=\"mention hashtag\" rel=\"tag\">#<span>StarTrek</span></a> fans know what&#39;s going on</p><p>V&#39;GER</p><p><a href=\"https://phys.org/news/2025-06-mysterious-fast-radio-dead-nasa.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">phys.org/news/2025-06-mysterio</span><span class=\"invisible\">us-fast-radio-dead-nasa.html</span></a></p><p><a href=\"https://mastodon.social/tags/space\" class=\"mention hashtag\" rel=\"tag\">#<span>space</span></a> <a href=\"https://mastodon.social/tags/frb\" class=\"mention hashtag\" rel=\"tag\">#<span>frb</span></a> <a href=\"https://mastodon.social/tags/astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>astronomy</span></a> <a href=\"https://mastodon.social/tags/radioastronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>radioastronomy</span></a></p>", "contentMap": { "en": "<p>Last year, astronomers detected a fast radio burst that got them excited as to a new discovery, but confused them as to the signal&#39;s power</p><p>When they pinpointed the signal it turned out to be... a <a href=\"https://mastodon.social/tags/NASA\" class=\"mention hashtag\" rel=\"tag\">#<span>NASA</span></a> satellite that died in 1964</p><p>They have some good theories as to how the zombie satellite fired off some signals but us <a href=\"https://mastodon.social/tags/StarTrek\" class=\"mention hashtag\" rel=\"tag\">#<span>StarTrek</span></a> fans know what&#39;s going on</p><p>V&#39;GER</p><p><a href=\"https://phys.org/news/2025-06-mysterious-fast-radio-dead-nasa.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">phys.org/news/2025-06-mysterio</span><span class=\"invisible\">us-fast-radio-dead-nasa.html</span></a></p><p><a href=\"https://mastodon.social/tags/space\" class=\"mention hashtag\" rel=\"tag\">#<span>space</span></a> <a href=\"https://mastodon.social/tags/frb\" class=\"mention hashtag\" rel=\"tag\">#<span>frb</span></a> <a href=\"https://mastodon.social/tags/astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>astronomy</span></a> <a href=\"https://mastodon.social/tags/radioastronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>radioastronomy</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/nasa", "name": "#nasa" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/startrek", "name": "#startrek" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/space", "name": "#space" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/frb", "name": "#frb" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/astronomy", "name": "#astronomy" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/radioastronomy", "name": "#radioastronomy" } ], "replies": { "id": "https://mastodon.social/users/benroyce/statuses/114738939125874453/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/benroyce/statuses/114738939125874453/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/benroyce/statuses/114738939125874453/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/benroyce/statuses/114738939125874453/likes", "type": "Collection", "totalItems": 178 }, "shares": { "id": "https://mastodon.social/users/benroyce/statuses/114738939125874453/shares", "type": "Collection", "totalItems": 100 } }