ActivityPub Viewer

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.

Open in browser →
{ "@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://mathstodon.xyz/users/albertcardona/statuses/114144296013489630", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/thetransmitter/statuses/114144262378294614", "published": "2025-03-11T14:35:35Z", "url": "https://mathstodon.xyz/@albertcardona/114144296013489630", "attributedTo": "https://mathstodon.xyz/users/albertcardona", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/albertcardona/followers", "https://neuromatch.social/users/DoriG", "https://mastodon.social/users/thetransmitter" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/albertcardona/statuses/114144296013489630", "inReplyToAtomUri": "https://mastodon.social/users/thetransmitter/statuses/114144262378294614", "conversation": "tag:mastodon.social,2025-03-11:objectId=942960189:objectType=Conversation", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@thetransmitter\" class=\"u-url mention\">@<span>thetransmitter</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://neuromatch.social/@DoriG\" class=\"u-url mention\">@<span>DoriG</span></a></span> </p><p>Don&#39;t miss the preprint:</p><p>&quot;The tardigrade as an emerging model organism for systems neuroscience&quot; by Ana M. Lyons and Saul Kato, 2025.</p><p><a href=\"https://arxiv.org/abs/2501.06606\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">arxiv.org/abs/2501.06606</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mathstodon.xyz/tags/neuroscience\" class=\"mention hashtag\" rel=\"tag\">#<span>neuroscience</span></a> <a href=\"https://mathstodon.xyz/tags/tardigrades\" class=\"mention hashtag\" rel=\"tag\">#<span>tardigrades</span></a></p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@thetransmitter\" class=\"u-url mention\">@<span>thetransmitter</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://neuromatch.social/@DoriG\" class=\"u-url mention\">@<span>DoriG</span></a></span> </p><p>Don&#39;t miss the preprint:</p><p>&quot;The tardigrade as an emerging model organism for systems neuroscience&quot; by Ana M. Lyons and Saul Kato, 2025.</p><p><a href=\"https://arxiv.org/abs/2501.06606\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">arxiv.org/abs/2501.06606</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mathstodon.xyz/tags/neuroscience\" class=\"mention hashtag\" rel=\"tag\">#<span>neuroscience</span></a> <a href=\"https://mathstodon.xyz/tags/tardigrades\" class=\"mention hashtag\" rel=\"tag\">#<span>tardigrades</span></a></p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://mastodon.social/users/thetransmitter", "name": "@thetransmitter@mastodon.social" }, { "type": "Mention", "href": "https://neuromatch.social/users/DoriG", "name": "@DoriG@neuromatch.social" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/tardigrades", "name": "#tardigrades" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/neuroscience", "name": "#neuroscience" } ], "replies": { "id": "https://mathstodon.xyz/users/albertcardona/statuses/114144296013489630/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/albertcardona/statuses/114144296013489630/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/albertcardona/statuses/114144296013489630/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/albertcardona/statuses/114144296013489630/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://mathstodon.xyz/users/albertcardona/statuses/114144296013489630/shares", "type": "Collection", "totalItems": 0 } }