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" } ], "id": "https://sciences.social/users/cmboulanger/statuses/114663954519143416", "type": "Note", "summary": null, "inReplyTo": "https://sciences.social/users/cmboulanger/statuses/114663935935204757", "published": "2025-06-11T09:11:35Z", "url": "https://sciences.social/@cmboulanger/114663954519143416", "attributedTo": "https://sciences.social/users/cmboulanger", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://sciences.social/users/cmboulanger/followers" ], "sensitive": false, "atomUri": "https://sciences.social/users/cmboulanger/statuses/114663954519143416", "inReplyToAtomUri": "https://sciences.social/users/cmboulanger/statuses/114663935935204757", "conversation": "tag:sciences.social,2025-06-11:objectId=75617592:objectType=Conversation", "content": "<p>Slide Summary: <a href=\"https://pad.gwdg.de/s/LjbjSAMyj\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">pad.gwdg.de/s/LjbjSAMyj</span><span class=\"invisible\"></span></a></p>", "contentMap": { "de": "<p>Slide Summary: <a href=\"https://pad.gwdg.de/s/LjbjSAMyj\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">pad.gwdg.de/s/LjbjSAMyj</span><span class=\"invisible\"></span></a></p>" }, "attachment": [], "tag": [], "replies": { "id": "https://sciences.social/users/cmboulanger/statuses/114663954519143416/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://sciences.social/users/cmboulanger/statuses/114663954519143416/replies?only_other_accounts=true&page=true", "partOf": "https://sciences.social/users/cmboulanger/statuses/114663954519143416/replies", "items": [] } }, "likes": { "id": "https://sciences.social/users/cmboulanger/statuses/114663954519143416/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://sciences.social/users/cmboulanger/statuses/114663954519143416/shares", "type": "Collection", "totalItems": 0 } }