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.

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{ "@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://fosstodon.org/users/ncopa/statuses/114776725246802806", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-07-01T07:10:39Z", "url": "https://fosstodon.org/@ncopa/114776725246802806", "attributedTo": "https://fosstodon.org/users/ncopa", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://fosstodon.org/users/ncopa/followers" ], "sensitive": false, "atomUri": "https://fosstodon.org/users/ncopa/statuses/114776725246802806", "inReplyToAtomUri": null, "conversation": "tag:fosstodon.org,2025-07-01:objectId=330084327:objectType=Conversation", "content": "<p>Linux kernel 6.12.35 introduces a build regression.</p><p>.../tools/include/linux/kallsyms.h:21:10: fatal error: <br />execinfo.h: No such file or directory<br /> 21 | <a href=\"https://fosstodon.org/tags/include\" class=\"mention hashtag\" rel=\"tag\">#<span>include</span></a> &lt;execinfo.h&gt;<br /> | ^~~~~~~~~~~~</p><p>I hope this does not mean that GNU libc is required to build kernel now.</p>", "contentMap": { "en": "<p>Linux kernel 6.12.35 introduces a build regression.</p><p>.../tools/include/linux/kallsyms.h:21:10: fatal error: <br />execinfo.h: No such file or directory<br /> 21 | <a href=\"https://fosstodon.org/tags/include\" class=\"mention hashtag\" rel=\"tag\">#<span>include</span></a> &lt;execinfo.h&gt;<br /> | ^~~~~~~~~~~~</p><p>I hope this does not mean that GNU libc is required to build kernel now.</p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://fosstodon.org/tags/include", "name": "#include" } ], "replies": { "id": "https://fosstodon.org/users/ncopa/statuses/114776725246802806/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://fosstodon.org/users/ncopa/statuses/114776725246802806/replies?only_other_accounts=true&page=true", "partOf": "https://fosstodon.org/users/ncopa/statuses/114776725246802806/replies", "items": [] } }, "likes": { "id": "https://fosstodon.org/users/ncopa/statuses/114776725246802806/likes", "type": "Collection", "totalItems": 10 }, "shares": { "id": "https://fosstodon.org/users/ncopa/statuses/114776725246802806/shares", "type": "Collection", "totalItems": 3 } }