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.
{
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{
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"conversation": "ostatus:conversation",
"sensitive": "as:sensitive",
"toot": "http://joinmastodon.org/ns#",
"votersCount": "toot:votersCount",
"Hashtag": "as:Hashtag"
}
],
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"published": "2025-06-23T09:33:29Z",
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"content": "<p>Rubin observatory unveils first images taken with its giant mirror and camera</p><p>Pictures are a prelude to a transformative, all-sky survey set to begin in months. More images and videos will be revealed in a livestreamed event today.</p><p><a href=\"https://www.science.org/content/article/rubin-observatory-unveils-first-images-taken-its-giant-mirror-and-camera\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">science.org/content/article/ru</span><span class=\"invisible\">bin-observatory-unveils-first-images-taken-its-giant-mirror-and-camera</span></a> </p><p><a href=\"https://mastodon.social/tags/RubinFirstLook\" class=\"mention hashtag\" rel=\"tag\">#<span>RubinFirstLook</span></a> <a href=\"https://mastodon.social/tags/CaptureTheCosmos\" class=\"mention hashtag\" rel=\"tag\">#<span>CaptureTheCosmos</span></a> <a href=\"https://mastodon.social/tags/Astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>Astronomy</span></a> <a href=\"https://mastodon.social/tags/Astrophysics\" class=\"mention hashtag\" rel=\"tag\">#<span>Astrophysics</span></a> <a href=\"https://mastodon.social/tags/Astrodon\" class=\"mention hashtag\" rel=\"tag\">#<span>Astrodon</span></a> <a href=\"https://mastodon.social/tags/news\" class=\"mention hashtag\" rel=\"tag\">#<span>news</span></a> <a href=\"https://mastodon.social/tags/Rubin\" class=\"mention hashtag\" rel=\"tag\">#<span>Rubin</span></a> <a href=\"https://mastodon.social/tags/observatory\" class=\"mention hashtag\" rel=\"tag\">#<span>observatory</span></a> <a href=\"https://mastodon.social/tags/RubinObservatory\" class=\"mention hashtag\" rel=\"tag\">#<span>RubinObservatory</span></a> <a href=\"https://mastodon.social/tags/science\" class=\"mention hashtag\" rel=\"tag\">#<span>science</span></a> <a href=\"https://mastodon.social/tags/cosmology\" class=\"mention hashtag\" rel=\"tag\">#<span>cosmology</span></a> <a href=\"https://mastodon.social/tags/telescope\" class=\"mention hashtag\" rel=\"tag\">#<span>telescope</span></a></p>",
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},
{
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},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/news",
"name": "#news"
},
{
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"href": "https://mastodon.social/tags/rubin",
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},
{
"type": "Hashtag",
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},
{
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"href": "https://mastodon.social/tags/rubinobservatory",
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},
{
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{
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{
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}
],
"replies": {
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