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/cycling_on_rails/statuses/114556617889374144/replies", "type": "Collection", "first": { "id": "https://mastodon.social/users/cycling_on_rails/statuses/114556617889374144/replies?page=true", "type": "CollectionPage", "next": "https://mastodon.social/users/cycling_on_rails/statuses/114556617889374144/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/cycling_on_rails/statuses/114556617889374144/replies", "items": [ { "id": "https://mastodon.social/users/cycling_on_rails/statuses/114556645951173343", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/cycling_on_rails/statuses/114556617889374144", "published": "2025-05-23T10:21:36Z", "url": "https://mastodon.social/@cycling_on_rails/114556645951173343", "attributedTo": "https://mastodon.social/users/cycling_on_rails", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/cycling_on_rails/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/cycling_on_rails/statuses/114556645951173343", "inReplyToAtomUri": "https://mastodon.social/users/cycling_on_rails/statuses/114556617889374144", "conversation": "tag:mastodon.social,2025-03-19:objectId=950216819:objectType=Conversation", "content": "<p>You know you&#39;ve entered a different part of Europe when train stations start to look like this. Budapest Keleti vs. Vienna Hbf. Historic stone building vs. metalic modern building. <a href=\"https://mastodon.social/tags/railway\" class=\"mention hashtag\" rel=\"tag\">#<span>railway</span></a> <a href=\"https://mastodon.social/tags/architecture\" class=\"mention hashtag\" rel=\"tag\">#<span>architecture</span></a></p>", "contentMap": { "en": "<p>You know you&#39;ve entered a different part of Europe when train stations start to look like this. Budapest Keleti vs. Vienna Hbf. Historic stone building vs. metalic modern building. <a href=\"https://mastodon.social/tags/railway\" class=\"mention hashtag\" rel=\"tag\">#<span>railway</span></a> <a href=\"https://mastodon.social/tags/architecture\" class=\"mention hashtag\" rel=\"tag\">#<span>architecture</span></a></p>" }, "updated": "2025-05-23T10:22:28Z", "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/114/556/627/099/075/132/original/4eba9b8de1d1cbd1.jpg", "name": "Budapest Keleti building seen from the side entrance: yellow building with a row of green trees lined up.", "blurhash": "UYG]5XM{kWRk.AM{tRRk.ARjo0WBW@aeM_jZ", "width": 3325, "height": 2494 }, { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/114/556/627/664/631/093/original/6627ed729127a148.jpg", "name": "Vienna main station building from outside at dusk: a glass & metal entrance next to a skyscraper.", "blurhash": "ULBf^n$_ogxw0WRjWXRns*t8jqR%xtM}WAxW", "width": 2494, "height": 3325 }, { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/114/556/627/391/209/751/original/d484b8cedd71cf54.jpg", "name": "Interior of Budapest Keleti building.", "blurhash": "UBGa%h?HrV},Emx]IUE10NR+j]MyveIU%M%2", "width": 2494, "height": 3325 }, { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/114/556/627/881/287/461/original/bedf7b85e5050f31.jpg", "name": "Underground walkway in Vienna main station, with neon lights, glass, metal & other modern materials.", "blurhash": "U9Ef7,9HMxkY0hxbxZt7BMIAM|adt*MwITWT", "width": 3325, "height": 2494 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/railway", "name": "#railway" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/architecture", "name": "#architecture" } ], "replies": { "id": "https://mastodon.social/users/cycling_on_rails/statuses/114556645951173343/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/cycling_on_rails/statuses/114556645951173343/replies?min_id=114573752048770589&page=true", "partOf": "https://mastodon.social/users/cycling_on_rails/statuses/114556645951173343/replies", "items": [ "https://mastodon.social/users/cycling_on_rails/statuses/114573752048770589" ] } }, "likes": { "id": "https://mastodon.social/users/cycling_on_rails/statuses/114556645951173343/likes", "type": "Collection", "totalItems": 9 }, "shares": { "id": "https://mastodon.social/users/cycling_on_rails/statuses/114556645951173343/shares", "type": "Collection", "totalItems": 2 } } ] } }