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://mastodon.social/users/h4ckernews/statuses/114303967643428594", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-04-08T19:22:11Z", "url": "https://mastodon.social/@h4ckernews/114303967643428594", "attributedTo": "https://mastodon.social/users/h4ckernews", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/h4ckernews/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/h4ckernews/statuses/114303967643428594", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-04-08:objectId=967324794:objectType=Conversation", "content": "<p>Solving a &quot;Layton Puzzle&quot; with Prolog</p><p><a href=\"https://buttondown.com/hillelwayne/archive/a48fce5b-8a05-4302-b620-9b26f057f145/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">buttondown.com/hillelwayne/arc</span><span class=\"invisible\">hive/a48fce5b-8a05-4302-b620-9b26f057f145/</span></a></p><p><a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a> <a href=\"https://mastodon.social/tags/Solving\" class=\"mention hashtag\" rel=\"tag\">#<span>Solving</span></a> <a href=\"https://mastodon.social/tags/a\" class=\"mention hashtag\" rel=\"tag\">#<span>a</span></a> <a href=\"https://mastodon.social/tags/Layton\" class=\"mention hashtag\" rel=\"tag\">#<span>Layton</span></a> <a href=\"https://mastodon.social/tags/Puzzle\" class=\"mention hashtag\" rel=\"tag\">#<span>Puzzle</span></a> <a href=\"https://mastodon.social/tags/with\" class=\"mention hashtag\" rel=\"tag\">#<span>with</span></a> <a href=\"https://mastodon.social/tags/Prolog\" class=\"mention hashtag\" rel=\"tag\">#<span>Prolog</span></a> <a href=\"https://mastodon.social/tags/LaytonPuzzle\" class=\"mention hashtag\" rel=\"tag\">#<span>LaytonPuzzle</span></a> <a href=\"https://mastodon.social/tags/Prolog\" class=\"mention hashtag\" rel=\"tag\">#<span>Prolog</span></a> <a href=\"https://mastodon.social/tags/AI\" class=\"mention hashtag\" rel=\"tag\">#<span>AI</span></a> <a href=\"https://mastodon.social/tags/Programming\" class=\"mention hashtag\" rel=\"tag\">#<span>Programming</span></a> <a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a></p>", "contentMap": { "en": "<p>Solving a &quot;Layton Puzzle&quot; with Prolog</p><p><a href=\"https://buttondown.com/hillelwayne/archive/a48fce5b-8a05-4302-b620-9b26f057f145/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">buttondown.com/hillelwayne/arc</span><span class=\"invisible\">hive/a48fce5b-8a05-4302-b620-9b26f057f145/</span></a></p><p><a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a> <a href=\"https://mastodon.social/tags/Solving\" class=\"mention hashtag\" rel=\"tag\">#<span>Solving</span></a> <a href=\"https://mastodon.social/tags/a\" class=\"mention hashtag\" rel=\"tag\">#<span>a</span></a> <a href=\"https://mastodon.social/tags/Layton\" class=\"mention hashtag\" rel=\"tag\">#<span>Layton</span></a> <a href=\"https://mastodon.social/tags/Puzzle\" class=\"mention hashtag\" rel=\"tag\">#<span>Puzzle</span></a> <a href=\"https://mastodon.social/tags/with\" class=\"mention hashtag\" rel=\"tag\">#<span>with</span></a> <a href=\"https://mastodon.social/tags/Prolog\" class=\"mention hashtag\" rel=\"tag\">#<span>Prolog</span></a> <a href=\"https://mastodon.social/tags/LaytonPuzzle\" class=\"mention hashtag\" rel=\"tag\">#<span>LaytonPuzzle</span></a> <a href=\"https://mastodon.social/tags/Prolog\" class=\"mention hashtag\" rel=\"tag\">#<span>Prolog</span></a> <a href=\"https://mastodon.social/tags/AI\" class=\"mention hashtag\" rel=\"tag\">#<span>AI</span></a> <a href=\"https://mastodon.social/tags/Programming\" class=\"mention hashtag\" rel=\"tag\">#<span>Programming</span></a> <a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/hackernews", "name": "#hackernews" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/solving", "name": "#solving" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/a", "name": "#a" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/layton", "name": "#layton" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/puzzle", "name": "#puzzle" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/with", "name": "#with" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/prolog", "name": "#prolog" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/laytonpuzzle", "name": "#laytonpuzzle" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/ai", "name": "#ai" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/programming", "name": "#programming" } ], "replies": { "id": "https://mastodon.social/users/h4ckernews/statuses/114303967643428594/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/h4ckernews/statuses/114303967643428594/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/h4ckernews/statuses/114303967643428594/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/h4ckernews/statuses/114303967643428594/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://mastodon.social/users/h4ckernews/statuses/114303967643428594/shares", "type": "Collection", "totalItems": 1 } }