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",
"https://w3id.org/security/v1",
{
"manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
"toot": "http://joinmastodon.org/ns#",
"featured": {
"@id": "toot:featured",
"@type": "@id"
},
"featuredTags": {
"@id": "toot:featuredTags",
"@type": "@id"
},
"alsoKnownAs": {
"@id": "as:alsoKnownAs",
"@type": "@id"
},
"movedTo": {
"@id": "as:movedTo",
"@type": "@id"
},
"schema": "http://schema.org#",
"PropertyValue": "schema:PropertyValue",
"value": "schema:value",
"discoverable": "toot:discoverable",
"suspended": "toot:suspended",
"memorial": "toot:memorial",
"indexable": "toot:indexable",
"attributionDomains": {
"@id": "toot:attributionDomains",
"@type": "@id"
},
"Hashtag": "as:Hashtag",
"focalPoint": {
"@container": "@list",
"@id": "toot:focalPoint"
}
}
],
"id": "https://tldr.nettime.org/users/katzenberger",
"type": "Person",
"following": "https://tldr.nettime.org/users/katzenberger/following",
"followers": "https://tldr.nettime.org/users/katzenberger/followers",
"inbox": "https://tldr.nettime.org/users/katzenberger/inbox",
"outbox": "https://tldr.nettime.org/users/katzenberger/outbox",
"featured": "https://tldr.nettime.org/users/katzenberger/collections/featured",
"featuredTags": "https://tldr.nettime.org/users/katzenberger/collections/tags",
"preferredUsername": "katzenberger",
"name": "katzenberger",
"summary": "<p>Rolf | ⁂ 🇺🇦🟣 | 🐧 ✊ <a href=\"https://tldr.nettime.org/tags/PenguinRebellion\" class=\"mention hashtag\" rel=\"tag\">#<span>PenguinRebellion</span></a><br />Please be advised that I make only limited use of Content Warnings. I also purge all followers from mastodon.social, from time to time.<br />Private account | English and German</p><p>My posts are licensed under Creative Commons Attribution-NonCommercial-ShareAlike (<a href=\"https://creativecommons.org/licenses/by-nc-sa/4.0/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">creativecommons.org/licenses/b</span><span class=\"invisible\">y-nc-sa/4.0/</span></a>) | <a href=\"https://tldr.nettime.org/tags/NoBot\" class=\"mention hashtag\" rel=\"tag\">#<span>NoBot</span></a> | <a href=\"https://tldr.nettime.org/tags/NoBridge\" class=\"mention hashtag\" rel=\"tag\">#<span>NoBridge</span></a></p><p>Profile picture: "Globe with Meridians" emoji<br />Header picture: Green fern leaves emerging from a black background</p>",
"url": "https://tldr.nettime.org/@katzenberger",
"manuallyApprovesFollowers": false,
"discoverable": true,
"indexable": true,
"published": "2025-04-18T00:00:00Z",
"memorial": false,
"alsoKnownAs": [
"https://mastodon.de/users/katzenberger"
],
"publicKey": {
"id": "https://tldr.nettime.org/users/katzenberger#main-key",
"owner": "https://tldr.nettime.org/users/katzenberger",
"publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqzcJxexGlV9EHAJjq3Ou\noYwlL3+EGUTfMv5HMNsP9IiRC1migbHTEkBJerno2GBEzS5vC42T04huMeTNgt97\n9EdjohtoblEG5AbJAtsIkFxbiK0Hc7IA+R6/cRiN1yqJq+DaVUl6Yw28yVXmswvh\n0wbxZw2Z60oZY3nYEpqVo2hEdDq1qjq+x3NFkviOLwmbwGZYgnmYT71zQias4QvY\n5WrKd3f+p4XeehIFuZVel4OeE4gAfBahZG3kqeFF//IaE1jzpcC1BZyIfQInOdk/\nlaiBI1Qu5VvddwzHc7oGmszI8G+LFq6ladyp5mDG+bjoGatV0krsejaDNXPZVuDH\nDwIDAQAB\n-----END PUBLIC KEY-----\n"
},
"tag": [
{
"type": "Hashtag",
"href": "https://tldr.nettime.org/tags/penguinrebellion",
"name": "#penguinrebellion"
},
{
"type": "Hashtag",
"href": "https://tldr.nettime.org/tags/nobot",
"name": "#nobot"
},
{
"type": "Hashtag",
"href": "https://tldr.nettime.org/tags/nobridge",
"name": "#nobridge"
}
],
"attachment": [
{
"type": "PropertyValue",
"name": "Web",
"value": "<a href=\"https://katzenberger.tel\" target=\"_blank\" rel=\"nofollow noopener noreferrer me\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">katzenberger.tel</span><span class=\"invisible\"></span></a>"
},
{
"type": "PropertyValue",
"name": "Pronouns",
"value": "he/him, er/ihn"
},
{
"type": "PropertyValue",
"name": "Post deletion",
"value": "after 3 months, unless boosted or favorited"
},
{
"type": "PropertyValue",
"name": "Formerly",
"value": "@social.tchncs.de, 2021-09-01 to 2024-06-15; @mastodon.de until 2025-04-18"
}
],
"endpoints": {
"sharedInbox": "https://tldr.nettime.org/inbox"
},
"icon": {
"type": "Image",
"mediaType": "image/png",
"url": "https://tldr.nettime.org/system_nettime/accounts/avatars/114/358/425/045/386/311/original/db43c088d428b860.png"
},
"image": {
"type": "Image",
"mediaType": "image/jpeg",
"url": "https://tldr.nettime.org/system_nettime/accounts/headers/114/358/425/045/386/311/original/0005660cb3f55cdf.jpg"
}
}