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": "2025-06-28T01:23:26Z",
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"content": "<p>Scientists hail Rubin Observatory’s debut and look ahead<br />It’s been more than two decades since the University of Washington helped kick off the effort to get the Vera C. Rubin Observatory built in Chile — and now that it’s finished, UW astronomers are gearing up to get in on the first decade of discoveries.</p><p>The university’s r<br /><a href=\"https://cosmiclog.com/2025/06/27/scientists-hail-rubin-observatorys-debut-and-look-ahead/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cosmiclog.com/2025/06/27/scien</span><span class=\"invisible\">tists-hail-rubin-observatorys-debut-and-look-ahead/</span></a><br /><a href=\"https://mastodon.online/tags/GeekWire\" class=\"mention hashtag\" rel=\"tag\">#<span>GeekWire</span></a> <a href=\"https://mastodon.online/tags/Astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>Astronomy</span></a> <a href=\"https://mastodon.online/tags/RubinObservatory\" class=\"mention hashtag\" rel=\"tag\">#<span>RubinObservatory</span></a> <a href=\"https://mastodon.online/tags/Space\" class=\"mention hashtag\" rel=\"tag\">#<span>Space</span></a> <a href=\"https://mastodon.online/tags/UniversityOfWashington\" class=\"mention hashtag\" rel=\"tag\">#<span>UniversityOfWashington</span></a></p>",
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