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",
"Hashtag": "as:Hashtag"
}
],
"id": "https://mastodon.social/users/h4ckernews/statuses/114223912818431312",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-03-25T16:03:11Z",
"url": "https://mastodon.social/@h4ckernews/114223912818431312",
"attributedTo": "https://mastodon.social/users/h4ckernews",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.social/users/h4ckernews/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.social/users/h4ckernews/statuses/114223912818431312",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.social,2025-03-25:objectId=955120419:objectType=Conversation",
"content": "<p>Why is C the symbol for the speed of light?</p><p><a href=\"https://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/c.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">math.ucr.edu/home/baez/physics</span><span class=\"invisible\">/Relativity/SpeedOfLight/c.html</span></a></p><p><a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a> <a href=\"https://mastodon.social/tags/C\" class=\"mention hashtag\" rel=\"tag\">#<span>C</span></a> <a href=\"https://mastodon.social/tags/speedoflight\" class=\"mention hashtag\" rel=\"tag\">#<span>speedoflight</span></a> <a href=\"https://mastodon.social/tags/physics\" class=\"mention hashtag\" rel=\"tag\">#<span>physics</span></a> <a href=\"https://mastodon.social/tags/relativity\" class=\"mention hashtag\" rel=\"tag\">#<span>relativity</span></a> <a href=\"https://mastodon.social/tags/science\" class=\"mention hashtag\" rel=\"tag\">#<span>science</span></a> <a href=\"https://mastodon.social/tags/education\" class=\"mention hashtag\" rel=\"tag\">#<span>education</span></a></p>",
"contentMap": {
"en": "<p>Why is C the symbol for the speed of light?</p><p><a href=\"https://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/c.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">math.ucr.edu/home/baez/physics</span><span class=\"invisible\">/Relativity/SpeedOfLight/c.html</span></a></p><p><a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a> <a href=\"https://mastodon.social/tags/C\" class=\"mention hashtag\" rel=\"tag\">#<span>C</span></a> <a href=\"https://mastodon.social/tags/speedoflight\" class=\"mention hashtag\" rel=\"tag\">#<span>speedoflight</span></a> <a href=\"https://mastodon.social/tags/physics\" class=\"mention hashtag\" rel=\"tag\">#<span>physics</span></a> <a href=\"https://mastodon.social/tags/relativity\" class=\"mention hashtag\" rel=\"tag\">#<span>relativity</span></a> <a href=\"https://mastodon.social/tags/science\" class=\"mention hashtag\" rel=\"tag\">#<span>science</span></a> <a href=\"https://mastodon.social/tags/education\" class=\"mention hashtag\" rel=\"tag\">#<span>education</span></a></p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/hackernews",
"name": "#hackernews"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/c",
"name": "#c"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/speedoflight",
"name": "#speedoflight"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/physics",
"name": "#physics"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/relativity",
"name": "#relativity"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/science",
"name": "#science"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/education",
"name": "#education"
}
],
"replies": {
"id": "https://mastodon.social/users/h4ckernews/statuses/114223912818431312/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.social/users/h4ckernews/statuses/114223912818431312/replies?only_other_accounts=true&page=true",
"partOf": "https://mastodon.social/users/h4ckernews/statuses/114223912818431312/replies",
"items": []
}
},
"likes": {
"id": "https://mastodon.social/users/h4ckernews/statuses/114223912818431312/likes",
"type": "Collection",
"totalItems": 0
},
"shares": {
"id": "https://mastodon.social/users/h4ckernews/statuses/114223912818431312/shares",
"type": "Collection",
"totalItems": 0
}
}