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/alanboyle/statuses/114554099161922026", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-22T23:33:55Z", "url": "https://mastodon.social/@alanboyle/114554099161922026", "attributedTo": "https://mastodon.social/users/alanboyle", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/alanboyle/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/alanboyle/statuses/114554099161922026", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-05-22:objectId=1004076367:objectType=Conversation", "content": "<p>Add another potential dwarf <a href=\"https://mastodon.social/tags/planet\" class=\"mention hashtag\" rel=\"tag\">#<span>planet</span></a> to the list for our solar system - and this one challenges claims relating to the hypothetical existence of a large world known as <a href=\"https://mastodon.social/tags/PlanetX\" class=\"mention hashtag\" rel=\"tag\">#<span>PlanetX</span></a> or <a href=\"https://mastodon.social/tags/Planet9\" class=\"mention hashtag\" rel=\"tag\">#<span>Planet9</span></a> ... <a href=\"https://cosmiclog.com/2025/05/22/a-cousin-for-pluto-new-dwarf-planet-candidate-found/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cosmiclog.com/2025/05/22/a-cou</span><span class=\"invisible\">sin-for-pluto-new-dwarf-planet-candidate-found/</span></a> <a href=\"https://mastodon.social/tags/2017OF201\" class=\"mention hashtag\" rel=\"tag\">#<span>2017OF201</span></a> <a href=\"https://mastodon.social/tags/PlanetNine\" class=\"mention hashtag\" rel=\"tag\">#<span>PlanetNine</span></a> <a href=\"https://mastodon.social/tags/Space\" class=\"mention hashtag\" rel=\"tag\">#<span>Space</span></a> <a href=\"https://mastodon.social/tags/DwarfPlanet\" class=\"mention hashtag\" rel=\"tag\">#<span>DwarfPlanet</span></a></p>", "contentMap": { "en": "<p>Add another potential dwarf <a href=\"https://mastodon.social/tags/planet\" class=\"mention hashtag\" rel=\"tag\">#<span>planet</span></a> to the list for our solar system - and this one challenges claims relating to the hypothetical existence of a large world known as <a href=\"https://mastodon.social/tags/PlanetX\" class=\"mention hashtag\" rel=\"tag\">#<span>PlanetX</span></a> or <a href=\"https://mastodon.social/tags/Planet9\" class=\"mention hashtag\" rel=\"tag\">#<span>Planet9</span></a> ... <a href=\"https://cosmiclog.com/2025/05/22/a-cousin-for-pluto-new-dwarf-planet-candidate-found/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cosmiclog.com/2025/05/22/a-cou</span><span class=\"invisible\">sin-for-pluto-new-dwarf-planet-candidate-found/</span></a> <a href=\"https://mastodon.social/tags/2017OF201\" class=\"mention hashtag\" rel=\"tag\">#<span>2017OF201</span></a> <a href=\"https://mastodon.social/tags/PlanetNine\" class=\"mention hashtag\" rel=\"tag\">#<span>PlanetNine</span></a> <a href=\"https://mastodon.social/tags/Space\" class=\"mention hashtag\" rel=\"tag\">#<span>Space</span></a> <a href=\"https://mastodon.social/tags/DwarfPlanet\" class=\"mention hashtag\" rel=\"tag\">#<span>DwarfPlanet</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/planet", "name": "#planet" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/planetx", "name": "#planetx" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/planet9", "name": "#planet9" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/2017of201", "name": "#2017of201" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/planetnine", "name": "#planetnine" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/space", "name": "#space" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/dwarfplanet", "name": "#dwarfplanet" } ], "replies": { "id": "https://mastodon.social/users/alanboyle/statuses/114554099161922026/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/alanboyle/statuses/114554099161922026/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/alanboyle/statuses/114554099161922026/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/alanboyle/statuses/114554099161922026/likes", "type": "Collection", "totalItems": 7 }, "shares": { "id": "https://mastodon.social/users/alanboyle/statuses/114554099161922026/shares", "type": "Collection", "totalItems": 9 } }