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"
},
"focalPoint": {
"@container": "@list",
"@id": "toot:focalPoint"
}
}
],
"id": "https://mastodon.social/users/ec_euclid",
"type": "Person",
"following": "https://mastodon.social/users/ec_euclid/following",
"followers": "https://mastodon.social/users/ec_euclid/followers",
"inbox": "https://mastodon.social/users/ec_euclid/inbox",
"outbox": "https://mastodon.social/users/ec_euclid/outbox",
"featured": "https://mastodon.social/users/ec_euclid/collections/featured",
"featuredTags": "https://mastodon.social/users/ec_euclid/collections/tags",
"preferredUsername": "ec_euclid",
"name": "Euclid Consortium",
"summary": "<p>Official Consortium of ESA's Euclid mission on the Universe's dark matter, energy & expansion, 15 European countries + USA + CAN + JAP, 2000+ scientists + engineers. Telescope successfully launched 1 July 2023 and now arrived at L2. Scientific surveys started 14 February 2024. First science data released!</p>",
"url": "https://mastodon.social/@ec_euclid",
"manuallyApprovesFollowers": false,
"discoverable": true,
"indexable": true,
"published": "2025-05-30T00:00:00Z",
"memorial": false,
"alsoKnownAs": [
"https://astrodon.social/users/ec_euclid"
],
"publicKey": {
"id": "https://mastodon.social/users/ec_euclid#main-key",
"owner": "https://mastodon.social/users/ec_euclid",
"publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsXVxCrFBp/entzfjWgGQ\nLdSZBh9/EehApxPN/9SLWLQvVCBIZjuhLYm3sNGQheOBqDdIuz1AIZx7UMb600Lk\nwbNk1eclMHY8hZkREC0qKNs7Y5Vdnkx6OpWaH9H5bFloISScAD7/7N1y21woclmR\n84L8jp9eH45plkvr2qx5O1OtvWGmrhsCGSP7WI6Sf5FFsEWLoUEYxuvtWLIJ6jO1\ns3kSZF1j9+HvlppBtuD5yxIMLI1ZhGCTPNAbCVD4Je7hp5kGOXIQe9Qp1zbBbzR+\nawdo3U+B0SeMvXq2aokH0ZV2XY/yu1YmZEJb/LvsXeyCLjfchY7kLgSrh4yLDhaK\npwIDAQAB\n-----END PUBLIC KEY-----\n"
},
"tag": [],
"attachment": [
{
"type": "PropertyValue",
"name": "Homepage",
"value": "<a href=\"https://www.euclid-ec.org\" target=\"_blank\" rel=\"nofollow noopener me\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">euclid-ec.org</span><span class=\"invisible\"></span></a>"
},
{
"type": "PropertyValue",
"name": "Youtube",
"value": "<a href=\"https://www.youtube.com/@EC_Euclid\" target=\"_blank\" rel=\"nofollow noopener me\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">youtube.com/@EC_Euclid</span><span class=\"invisible\"></span></a>"
},
{
"type": "PropertyValue",
"name": "Instagram",
"value": "<a href=\"https://www.instagram.com/euclidconsortium/\" target=\"_blank\" rel=\"nofollow noopener me\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">instagram.com/euclidconsortium/</span><span class=\"invisible\"></span></a>"
}
],
"endpoints": {
"sharedInbox": "https://mastodon.social/inbox"
},
"icon": {
"type": "Image",
"mediaType": "image/png",
"url": "https://files.mastodon.social/accounts/avatars/114/596/639/332/248/372/original/c04a8bd43878f80c.png"
},
"image": {
"type": "Image",
"mediaType": "image/jpeg",
"url": "https://files.mastodon.social/accounts/headers/114/596/639/332/248/372/original/604ce559d14bcfd5.jpg"
}
}