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.
{
"@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/mdreid/statuses/114248878862874815",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-03-30T01:52:23Z",
"url": "https://mastodon.social/@mdreid/114248878862874815",
"attributedTo": "https://mastodon.social/users/mdreid",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.social/users/mdreid/followers",
"https://mastodon.social/users/katchwreck",
"https://mathstodon.xyz/users/johncarlosbaez"
],
"sensitive": false,
"atomUri": "https://mastodon.social/users/mdreid/statuses/114248878862874815",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.social,2025-03-30:objectId=958948155:objectType=Conversation",
"content": "<p>I did a bit of Javascript hacking this weekend with the excellent `two.js` 2D drawing library to try to create an animated version of a diagram I came up with a while ago about modes and the circle of fifths. </p><p>Thanks to both <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@katchwreck\" class=\"u-url mention\">@<span>katchwreck</span></a></span> and <span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@johncarlosbaez\" class=\"u-url mention\">@<span>johncarlosbaez</span></a></span> for separate discussions here that got me thinking about this.</p><p>Animation and explanation is here: <a href=\"https://mark.reid.name/modes/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">mark.reid.name/modes/</span><span class=\"invisible\"></span></a> </p><p><a href=\"https://mastodon.social/tags/musictheory\" class=\"mention hashtag\" rel=\"tag\">#<span>musictheory</span></a> <a href=\"https://mastodon.social/tags/javascript\" class=\"mention hashtag\" rel=\"tag\">#<span>javascript</span></a></p>",
"contentMap": {
"en": "<p>I did a bit of Javascript hacking this weekend with the excellent `two.js` 2D drawing library to try to create an animated version of a diagram I came up with a while ago about modes and the circle of fifths. </p><p>Thanks to both <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@katchwreck\" class=\"u-url mention\">@<span>katchwreck</span></a></span> and <span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@johncarlosbaez\" class=\"u-url mention\">@<span>johncarlosbaez</span></a></span> for separate discussions here that got me thinking about this.</p><p>Animation and explanation is here: <a href=\"https://mark.reid.name/modes/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">mark.reid.name/modes/</span><span class=\"invisible\"></span></a> </p><p><a href=\"https://mastodon.social/tags/musictheory\" class=\"mention hashtag\" rel=\"tag\">#<span>musictheory</span></a> <a href=\"https://mastodon.social/tags/javascript\" class=\"mention hashtag\" rel=\"tag\">#<span>javascript</span></a></p>"
},
"updated": "2025-03-30T02:00:38Z",
"attachment": [
{
"type": "Document",
"mediaType": "image/png",
"url": "https://files.mastodon.social/media_attachments/files/114/248/863/131/810/624/original/3c4b3d929ed85868.png",
"name": "Screenshot on an animation showing how modes relate to each other on the circle of fifth, a pitch wheel, and a keyboard.",
"blurhash": "UHRypcf8~o%M?bogD%V@IVWE%Lt5%Kaxj]of",
"focalPoint": [
-0.42,
0.23
],
"width": 1932,
"height": 1098
}
],
"tag": [
{
"type": "Mention",
"href": "https://mastodon.social/users/katchwreck",
"name": "@katchwreck"
},
{
"type": "Mention",
"href": "https://mathstodon.xyz/users/johncarlosbaez",
"name": "@johncarlosbaez@mathstodon.xyz"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/musictheory",
"name": "#musictheory"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/javascript",
"name": "#javascript"
}
],
"replies": {
"id": "https://mastodon.social/users/mdreid/statuses/114248878862874815/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.social/users/mdreid/statuses/114248878862874815/replies?only_other_accounts=true&page=true",
"partOf": "https://mastodon.social/users/mdreid/statuses/114248878862874815/replies",
"items": []
}
},
"likes": {
"id": "https://mastodon.social/users/mdreid/statuses/114248878862874815/likes",
"type": "Collection",
"totalItems": 8
},
"shares": {
"id": "https://mastodon.social/users/mdreid/statuses/114248878862874815/shares",
"type": "Collection",
"totalItems": 6
}
}