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.sdf.org/users/eiZen/statuses/114284923229561300", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.sdf.org/users/eiZen/statuses/114284884041554277", "published": "2025-04-05T10:38:56Z", "url": "https://mastodon.sdf.org/@eiZen/114284923229561300", "attributedTo": "https://mastodon.sdf.org/users/eiZen", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.sdf.org/users/eiZen/followers" ], "sensitive": false, "atomUri": "https://mastodon.sdf.org/users/eiZen/statuses/114284923229561300", "inReplyToAtomUri": "https://mastodon.sdf.org/users/eiZen/statuses/114284884041554277", "conversation": "tag:mastodon.sdf.org,2025-04-05:objectId=256522255:objectType=Conversation", "content": "<p>Japanese CP/M Handbook Æsthetics</p><p><a href=\"https://mastodon.sdf.org/tags/Japanese\" class=\"mention hashtag\" rel=\"tag\">#<span>Japanese</span></a> <a href=\"https://mastodon.sdf.org/tags/RetroTech\" class=\"mention hashtag\" rel=\"tag\">#<span>RetroTech</span></a><br /><a href=\"https://mastodon.sdf.org/tags/CPM\" class=\"mention hashtag\" rel=\"tag\">#<span>CPM</span></a> <a href=\"https://mastodon.sdf.org/tags/RetroComputing\" class=\"mention hashtag\" rel=\"tag\">#<span>RetroComputing</span></a><br /><a href=\"https://mastodon.sdf.org/tags/Typography\" class=\"mention hashtag\" rel=\"tag\">#<span>Typography</span></a></p><p>6/</p>", "contentMap": { "en": "<p>Japanese CP/M Handbook Æsthetics</p><p><a href=\"https://mastodon.sdf.org/tags/Japanese\" class=\"mention hashtag\" rel=\"tag\">#<span>Japanese</span></a> <a href=\"https://mastodon.sdf.org/tags/RetroTech\" class=\"mention hashtag\" rel=\"tag\">#<span>RetroTech</span></a><br /><a href=\"https://mastodon.sdf.org/tags/CPM\" class=\"mention hashtag\" rel=\"tag\">#<span>CPM</span></a> <a href=\"https://mastodon.sdf.org/tags/RetroComputing\" class=\"mention hashtag\" rel=\"tag\">#<span>RetroComputing</span></a><br /><a href=\"https://mastodon.sdf.org/tags/Typography\" class=\"mention hashtag\" rel=\"tag\">#<span>Typography</span></a></p><p>6/</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/890/098/655/931/original/ea34d58ed8e254c8.png", "name": "Chapter page with a big 1", "blurhash": "UQQ,Ezxuj[t800xuWBofD%xuRjofRPxuRjof", "focalPoint": [ -0.61789775, 0.23090655 ], "width": 1080, "height": 1583 }, { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/896/220/225/065/original/b7f5f2043bdeaad0.png", "name": "Skmilar chapter page header closeup, with a 2", "blurhash": "UaO:@S-;fQt79F-;M{t7xut7M{j[~qxuIURj", "focalPoint": [ 0.7104142, 0.40944648 ], "width": 1080, "height": 678 }, { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/897/962/465/281/original/0066108a59caee5b.png", "name": "Three rectangles with text and picture of microcomputer. A white, a light gray and a dark gray one.", "blurhash": "UPM%}}RjWBof~qfQIUj[fQRjj[ofD%ayt7fQ", "focalPoint": [ -0.05326706, 0.49398476 ], "width": 1080, "height": 1662 }, { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/899/997/337/250/original/bfdf21c6666cac6e.png", "name": "Pixel diagram of how a screen is strcutured with lines and rows.", "blurhash": "U6SPX_ay~q-;ayRjj[of?bt7%MIU-;RjM{ay", "width": 1080, "height": 1064 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/japanese", "name": "#japanese" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/retrotech", "name": "#retrotech" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/cpm", "name": "#cpm" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/retrocomputing", "name": "#retrocomputing" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/typography", "name": "#typography" } ], "replies": { "id": "https://mastodon.sdf.org/users/eiZen/statuses/114284923229561300/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.sdf.org/users/eiZen/statuses/114284923229561300/replies?min_id=114284950702025424&page=true", "partOf": "https://mastodon.sdf.org/users/eiZen/statuses/114284923229561300/replies", "items": [ "https://mastodon.sdf.org/users/eiZen/statuses/114284950702025424" ] } } }