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://social.epfl.ch/users/MatMat",
"type": "Person",
"following": "https://social.epfl.ch/users/MatMat/following",
"followers": "https://social.epfl.ch/users/MatMat/followers",
"inbox": "https://social.epfl.ch/users/MatMat/inbox",
"outbox": "https://social.epfl.ch/users/MatMat/outbox",
"featured": "https://social.epfl.ch/users/MatMat/collections/featured",
"featuredTags": "https://social.epfl.ch/users/MatMat/collections/tags",
"preferredUsername": "MatMat",
"name": "MatMat",
"summary": "<p>Mathematics for materials modelling (MatMat) <a href=\"https://social.epfl.ch/tags/research\" class=\"mention hashtag\" rel=\"tag\">#<span>research</span></a> group at <a href=\"https://social.epfl.ch/tags/EPFL\" class=\"mention hashtag\" rel=\"tag\">#<span>EPFL</span></a>.</p><p>We work at the edge of <a href=\"https://social.epfl.ch/tags/mathematics\" class=\"mention hashtag\" rel=\"tag\">#<span>mathematics</span></a>, <a href=\"https://social.epfl.ch/tags/chemistry\" class=\"mention hashtag\" rel=\"tag\">#<span>chemistry</span></a>, <a href=\"https://social.epfl.ch/tags/physics\" class=\"mention hashtag\" rel=\"tag\">#<span>physics</span></a> and <a href=\"https://social.epfl.ch/tags/computerscience\" class=\"mention hashtag\" rel=\"tag\">#<span>computerscience</span></a> to understand uncertainties in <a href=\"https://social.epfl.ch/tags/materials\" class=\"mention hashtag\" rel=\"tag\">#<span>materials</span></a> simulations and make modelling of materials faster and more reliable !</p>",
"url": "https://social.epfl.ch/@MatMat",
"manuallyApprovesFollowers": false,
"discoverable": true,
"indexable": true,
"published": "2025-02-24T00:00:00Z",
"memorial": false,
"publicKey": {
"id": "https://social.epfl.ch/users/MatMat#main-key",
"owner": "https://social.epfl.ch/users/MatMat",
"publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAycpTKv5FNrq44Fdx9SQW\nss2qSaOUBgWl026ivAS84VsOtaa6ycO0/LIVPS/ZvRjkA3unM/QitgwvPt326H9a\nUFq9JSGO1mjIN6pQlk8aCA9+bezVC9364P2P8yNaS7CKNZhwC15gXB+Q2nM7Ymtc\nJXlevXUW6p05DUDOiOd0AFwVkd3CF+wE17pgEYVrHl5zmmWS6Fb+w+S+FpDsx0//\nemLRdzm14pfP00MMQLrsSwLX80BYM/Sru+C1yszHKgd4DUOTDvTWJh8eQdVfEphB\nFdhxW9LsE6LYvuqJ18k3kf0ymz6qWvie8rB3Qa+mQXA9wS5e54qdX6JsC6XwBq18\nMQIDAQAB\n-----END PUBLIC KEY-----\n"
},
"tag": [
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/research",
"name": "#research"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/epfl",
"name": "#epfl"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/mathematics",
"name": "#mathematics"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/chemistry",
"name": "#chemistry"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/physics",
"name": "#physics"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/computerscience",
"name": "#computerscience"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/materials",
"name": "#materials"
}
],
"attachment": [
{
"type": "PropertyValue",
"name": "Website",
"value": "<a href=\"https://matmat.org/\" target=\"_blank\" rel=\"nofollow noopener noreferrer me\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">matmat.org/</span><span class=\"invisible\"></span></a>"
}
],
"endpoints": {
"sharedInbox": "https://social.epfl.ch/inbox"
},
"icon": {
"type": "Image",
"mediaType": "image/png",
"url": "https://social.epfl.ch/system/accounts/avatars/114/058/383/816/925/698/original/7ca672f5f91f059a.png"
},
"image": {
"type": "Image",
"mediaType": "image/png",
"url": "https://social.epfl.ch/system/accounts/headers/114/058/383/816/925/698/original/a6f0069fbe40ed9a.png"
}
}