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", "Emoji": "toot:Emoji", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" } } ], "id": "https://fosstodon.org/users/brianb/statuses/114454925184641977", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-05T11:12:40Z", "url": "https://fosstodon.org/@brianb/114454925184641977", "attributedTo": "https://fosstodon.org/users/brianb", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://fosstodon.org/users/brianb/followers" ], "sensitive": false, "atomUri": "https://fosstodon.org/users/brianb/statuses/114454925184641977", "inReplyToAtomUri": null, "conversation": "tag:fosstodon.org,2025-05-05:objectId=313431509:objectType=Conversation", "content": "<p>Today in the classroom:</p><p>First year chemistry is doing prelab for the petri dish battery activity. Students create 5 half cells on a star-shaped piece of filter paper. Each leg gets a metal and its salt with a NaNO3 bridge connecting everything. They calculate the expected value, and then test each cell.</p><p>Second year chem is doing acid/base test corrections before moving into organic naming this week.</p><p><a href=\"https://fosstodon.org/tags/chemistry\" class=\"mention hashtag\" rel=\"tag\">#<span>chemistry</span></a> <a href=\"https://fosstodon.org/tags/teaching\" class=\"mention hashtag\" rel=\"tag\">#<span>teaching</span></a> :cupofcoffee:</p>", "contentMap": { "en": "<p>Today in the classroom:</p><p>First year chemistry is doing prelab for the petri dish battery activity. Students create 5 half cells on a star-shaped piece of filter paper. Each leg gets a metal and its salt with a NaNO3 bridge connecting everything. They calculate the expected value, and then test each cell.</p><p>Second year chem is doing acid/base test corrections before moving into organic naming this week.</p><p><a href=\"https://fosstodon.org/tags/chemistry\" class=\"mention hashtag\" rel=\"tag\">#<span>chemistry</span></a> <a href=\"https://fosstodon.org/tags/teaching\" class=\"mention hashtag\" rel=\"tag\">#<span>teaching</span></a> :cupofcoffee:</p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://fosstodon.org/tags/chemistry", "name": "#chemistry" }, { "type": "Hashtag", "href": "https://fosstodon.org/tags/teaching", "name": "#teaching" }, { "id": "https://fosstodon.org/emojis/809877", "type": "Emoji", "name": ":cupofcoffee:", "updated": "2022-12-26T05:59:47Z", "icon": { "type": "Image", "mediaType": "image/png", "url": "https://cdn.fosstodon.org/custom_emojis/images/000/809/877/original/ed5286f4d91e33e6.png" } } ], "replies": { "id": "https://fosstodon.org/users/brianb/statuses/114454925184641977/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://fosstodon.org/users/brianb/statuses/114454925184641977/replies?only_other_accounts=true&page=true", "partOf": "https://fosstodon.org/users/brianb/statuses/114454925184641977/replies", "items": [] } }, "likes": { "id": "https://fosstodon.org/users/brianb/statuses/114454925184641977/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://fosstodon.org/users/brianb/statuses/114454925184641977/shares", "type": "Collection", "totalItems": 1 } }