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.online/users/umplus/statuses/114677596938436904", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-13T19:01:01Z", "url": "https://mastodon.online/@umplus/114677596938436904", "attributedTo": "https://mastodon.online/users/umplus", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.online/users/umplus/followers" ], "sensitive": false, "atomUri": "https://mastodon.online/users/umplus/statuses/114677596938436904", "inReplyToAtomUri": null, "conversation": "tag:mastodon.online,2025-06-13:objectId=522868361:objectType=Conversation", "content": "<p><a href=\"https://mastodon.online/tags/UMPlus\" class=\"mention hashtag\" rel=\"tag\">#<span>UMPlus</span></a> - EUVST Mission</p><p><a href=\"https://www.universomagico.net/2025/06/mision-euvst.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">universomagico.net/2025/06/mis</span><span class=\"invisible\">ion-euvst.html</span></a></p><p>EUVST is a solar telescope designed to study how solar winds are released from our star, creating space weather in the Solar System. The mission consists of a high-performance extreme ultraviolet spectroscopic telescope called EUVST, and will change how scientists study the Sun, space, and Earth as an.....<br /><a href=\"https://mastodon.online/tags/astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>astronomy</span></a> <a href=\"https://mastodon.online/tags/space\" class=\"mention hashtag\" rel=\"tag\">#<span>space</span></a> <a href=\"https://mastodon.online/tags/astrophysics\" class=\"mention hashtag\" rel=\"tag\">#<span>astrophysics</span></a> <a href=\"https://mastodon.online/tags/astrophotography\" class=\"mention hashtag\" rel=\"tag\">#<span>astrophotography</span></a></p>", "contentMap": { "es": "<p><a href=\"https://mastodon.online/tags/UMPlus\" class=\"mention hashtag\" rel=\"tag\">#<span>UMPlus</span></a> - EUVST Mission</p><p><a href=\"https://www.universomagico.net/2025/06/mision-euvst.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">universomagico.net/2025/06/mis</span><span class=\"invisible\">ion-euvst.html</span></a></p><p>EUVST is a solar telescope designed to study how solar winds are released from our star, creating space weather in the Solar System. The mission consists of a high-performance extreme ultraviolet spectroscopic telescope called EUVST, and will change how scientists study the Sun, space, and Earth as an.....<br /><a href=\"https://mastodon.online/tags/astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>astronomy</span></a> <a href=\"https://mastodon.online/tags/space\" class=\"mention hashtag\" rel=\"tag\">#<span>space</span></a> <a href=\"https://mastodon.online/tags/astrophysics\" class=\"mention hashtag\" rel=\"tag\">#<span>astrophysics</span></a> <a href=\"https://mastodon.online/tags/astrophotography\" class=\"mention hashtag\" rel=\"tag\">#<span>astrophotography</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.online/media_attachments/files/114/677/596/397/772/917/original/fbb661fc15ee9a70.jpg", "name": "EUVST Mission", "blurhash": "UO7xeBS8NitUkEi@RikEDzoGxoRiV=R-xtoH", "focalPoint": [ 0, 0 ], "width": 500, "height": 391 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.online/tags/UMPlus", "name": "#UMPlus" }, { "type": "Hashtag", "href": "https://mastodon.online/tags/astronomy", "name": "#astronomy" }, { "type": "Hashtag", "href": "https://mastodon.online/tags/space", "name": "#space" }, { "type": "Hashtag", "href": "https://mastodon.online/tags/astrophysics", "name": "#astrophysics" }, { "type": "Hashtag", "href": "https://mastodon.online/tags/astrophotography", "name": "#astrophotography" } ], "replies": { "id": "https://mastodon.online/users/umplus/statuses/114677596938436904/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.online/users/umplus/statuses/114677596938436904/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.online/users/umplus/statuses/114677596938436904/replies", "items": [] } }, "likes": { "id": "https://mastodon.online/users/umplus/statuses/114677596938436904/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mastodon.online/users/umplus/statuses/114677596938436904/shares", "type": "Collection", "totalItems": 0 } }