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", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" }, "Hashtag": "as:Hashtag" } ], "id": "https://mastodon.social/users/biohacking_village/statuses/114693806376161034", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-16T15:43:18Z", "url": "https://mastodon.social/@biohacking_village/114693806376161034", "attributedTo": "https://mastodon.social/users/biohacking_village", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/biohacking_village/followers", "https://defcon.social/users/defcon" ], "sensitive": false, "atomUri": "https://mastodon.social/users/biohacking_village/statuses/114693806376161034", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-06-16:objectId=1024644734:objectType=Conversation", "content": "<p>🔧 Stay tuned to see what we’re building, breaking, and exploring at <span class=\"h-card\" translate=\"no\"><a href=\"https://defcon.social/@defcon\" class=\"u-url mention\">@<span>defcon</span></a></span>!</p><p>Follow along for updates from the Biohacking Village.</p><p><a href=\"https://mastodon.social/tags/BiohackingVillage\" class=\"mention hashtag\" rel=\"tag\">#<span>BiohackingVillage</span></a> <a href=\"https://mastodon.social/tags/DEFCON\" class=\"mention hashtag\" rel=\"tag\">#<span>DEFCON</span></a> <a href=\"https://mastodon.social/tags/Fediverse\" class=\"mention hashtag\" rel=\"tag\">#<span>Fediverse</span></a> <a href=\"https://mastodon.social/tags/hacker\" class=\"mention hashtag\" rel=\"tag\">#<span>hacker</span></a> <a href=\"https://mastodon.social/tags/Cybersecurity\" class=\"mention hashtag\" rel=\"tag\">#<span>Cybersecurity</span></a> <a href=\"https://mastodon.social/tags/MedicalDevices\" class=\"mention hashtag\" rel=\"tag\">#<span>MedicalDevices</span></a></p>", "contentMap": { "en": "<p>🔧 Stay tuned to see what we’re building, breaking, and exploring at <span class=\"h-card\" translate=\"no\"><a href=\"https://defcon.social/@defcon\" class=\"u-url mention\">@<span>defcon</span></a></span>!</p><p>Follow along for updates from the Biohacking Village.</p><p><a href=\"https://mastodon.social/tags/BiohackingVillage\" class=\"mention hashtag\" rel=\"tag\">#<span>BiohackingVillage</span></a> <a href=\"https://mastodon.social/tags/DEFCON\" class=\"mention hashtag\" rel=\"tag\">#<span>DEFCON</span></a> <a href=\"https://mastodon.social/tags/Fediverse\" class=\"mention hashtag\" rel=\"tag\">#<span>Fediverse</span></a> <a href=\"https://mastodon.social/tags/hacker\" class=\"mention hashtag\" rel=\"tag\">#<span>hacker</span></a> <a href=\"https://mastodon.social/tags/Cybersecurity\" class=\"mention hashtag\" rel=\"tag\">#<span>Cybersecurity</span></a> <a href=\"https://mastodon.social/tags/MedicalDevices\" class=\"mention hashtag\" rel=\"tag\">#<span>MedicalDevices</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "video/mp4", "url": "https://files.mastodon.social/media_attachments/files/114/693/797/386/856/251/original/94dbacc6306e5b33.mp4", "name": null, "blurhash": "UD31W+S{Ufr]R.nPi{bbqeV[cVofoyXQafnl", "width": 1200, "height": 1200 } ], "tag": [ { "type": "Mention", "href": "https://defcon.social/users/defcon", "name": "@defcon@defcon.social" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/biohackingvillage", "name": "#biohackingvillage" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/defcon", "name": "#defcon" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/fediverse", "name": "#fediverse" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/hacker", "name": "#hacker" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/cybersecurity", "name": "#cybersecurity" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/medicaldevices", "name": "#medicaldevices" } ], "replies": { "id": "https://mastodon.social/users/biohacking_village/statuses/114693806376161034/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/biohacking_village/statuses/114693806376161034/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/biohacking_village/statuses/114693806376161034/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/biohacking_village/statuses/114693806376161034/likes", "type": "Collection", "totalItems": 6 }, "shares": { "id": "https://mastodon.social/users/biohacking_village/statuses/114693806376161034/shares", "type": "Collection", "totalItems": 4 } }