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/rexi/statuses/114097044265323885/replies", "type": "Collection", "first": { "id": "https://mastodon.social/users/rexi/statuses/114097044265323885/replies?page=true", "type": "CollectionPage", "next": "https://mastodon.social/users/rexi/statuses/114097044265323885/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/rexi/statuses/114097044265323885/replies", "items": [ { "id": "https://mastodon.social/users/rexi/statuses/114180314099890203", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/rexi/statuses/114097044265323885", "published": "2025-03-17T23:15:27Z", "url": "https://mastodon.social/@rexi/114180314099890203", "attributedTo": "https://mastodon.social/users/rexi", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rexi/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rexi/statuses/114180314099890203", "inReplyToAtomUri": "https://mastodon.social/users/rexi/statuses/114097044265323885", "conversation": "tag:mastodon.social,2024-01-02:objectId=611359690:objectType=Conversation", "content": "<p><a href=\"https://phys.org/news/2025-03-scientists-plastic-simple-inexpensive-catalyst.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">phys.org/news/2025-03-scientis</span><span class=\"invisible\">ts-plastic-simple-inexpensive-catalyst.html</span></a></p><p>(lordy, tell me we could do this with <a href=\"https://mastodon.social/tags/solar\" class=\"mention hashtag\" rel=\"tag\">#<span>solar</span></a> heat energy, and I&#39;ll dance a freakin&#39; jig!)</p><p>researchers used a molybdenum catalyst and activated carbon—both of which are inexpensive, abundant and non-toxic materials. To initiate the process, the researchers added PET to the catalyst and activated carbon and then heated up the mixture</p>", "contentMap": { "en": "<p><a href=\"https://phys.org/news/2025-03-scientists-plastic-simple-inexpensive-catalyst.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">phys.org/news/2025-03-scientis</span><span class=\"invisible\">ts-plastic-simple-inexpensive-catalyst.html</span></a></p><p>(lordy, tell me we could do this with <a href=\"https://mastodon.social/tags/solar\" class=\"mention hashtag\" rel=\"tag\">#<span>solar</span></a> heat energy, and I&#39;ll dance a freakin&#39; jig!)</p><p>researchers used a molybdenum catalyst and activated carbon—both of which are inexpensive, abundant and non-toxic materials. To initiate the process, the researchers added PET to the catalyst and activated carbon and then heated up the mixture</p>" }, "updated": "2025-03-17T23:17:45Z", "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/solar", "name": "#solar" } ], "replies": { "id": "https://mastodon.social/users/rexi/statuses/114180314099890203/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rexi/statuses/114180314099890203/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/rexi/statuses/114180314099890203/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/rexi/statuses/114180314099890203/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://mastodon.social/users/rexi/statuses/114180314099890203/shares", "type": "Collection", "totalItems": 2 } } ] } }