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://social.opensource.org/users/osi/statuses/114657860209382955", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-10T07:21:43Z", "url": "https://social.opensource.org/@osi/114657860209382955", "attributedTo": "https://social.opensource.org/users/osi", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://social.opensource.org/users/osi/followers" ], "sensitive": false, "atomUri": "https://social.opensource.org/users/osi/statuses/114657860209382955", "inReplyToAtomUri": null, "conversation": "tag:opensource.org,2025-06-10:objectId=957917:objectType=Conversation", "content": "<p>Open source meets AI at <a href=\"https://social.opensource.org/tags/Viva\" class=\"mention hashtag\" rel=\"tag\">#<span>Viva</span></a> Technology! OSI’s Stefano Maffulli joins the panel: “Shared Progress: How Can Open-Sourcing Speed the AI Race?” <a href=\"https://social.opensource.org/tags/OpenSourceAI\" class=\"mention hashtag\" rel=\"tag\">#<span>OpenSourceAI</span></a> <a href=\"https://vivatechnology.com/sessions/session/316dc0ac-db37-f011-a5f1-6045bda07d25?utm=\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">vivatechnology.com/sessions/se</span><span class=\"invisible\">ssion/316dc0ac-db37-f011-a5f1-6045bda07d25?utm=</span></a></p>", "contentMap": { "en": "<p>Open source meets AI at <a href=\"https://social.opensource.org/tags/Viva\" class=\"mention hashtag\" rel=\"tag\">#<span>Viva</span></a> Technology! OSI’s Stefano Maffulli joins the panel: “Shared Progress: How Can Open-Sourcing Speed the AI Race?” <a href=\"https://social.opensource.org/tags/OpenSourceAI\" class=\"mention hashtag\" rel=\"tag\">#<span>OpenSourceAI</span></a> <a href=\"https://vivatechnology.com/sessions/session/316dc0ac-db37-f011-a5f1-6045bda07d25?utm=\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">vivatechnology.com/sessions/se</span><span class=\"invisible\">ssion/316dc0ac-db37-f011-a5f1-6045bda07d25?utm=</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://social.opensource.org/tags/viva", "name": "#viva" }, { "type": "Hashtag", "href": "https://social.opensource.org/tags/opensourceai", "name": "#opensourceai" } ], "replies": { "id": "https://social.opensource.org/users/osi/statuses/114657860209382955/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://social.opensource.org/users/osi/statuses/114657860209382955/replies?only_other_accounts=true&page=true", "partOf": "https://social.opensource.org/users/osi/statuses/114657860209382955/replies", "items": [] } }, "likes": { "id": "https://social.opensource.org/users/osi/statuses/114657860209382955/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://social.opensource.org/users/osi/statuses/114657860209382955/shares", "type": "Collection", "totalItems": 3 } }