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://undefined.social/users/Whinery/statuses/114779629006550892", "type": "Note", "summary": null, "inReplyTo": "https://fediscience.org/users/petergleick/statuses/114779201653895575", "published": "2025-07-01T19:29:07Z", "url": "https://undefined.social/@Whinery/114779629006550892", "attributedTo": "https://undefined.social/users/Whinery", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://undefined.social/users/Whinery/followers", "https://fediscience.org/users/petergleick" ], "sensitive": true, "atomUri": "https://undefined.social/users/Whinery/statuses/114779629006550892", "inReplyToAtomUri": "https://fediscience.org/users/petergleick/statuses/114779201653895575", "conversation": "tag:fediscience.org,2025-07-01:objectId=119406767:objectType=Conversation", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://fediscience.org/@petergleick\" class=\"u-url mention\">@<span>petergleick</span></a></span> </p><p>The <a href=\"https://undefined.social/tags/government\" class=\"mention hashtag\" rel=\"tag\">#<span>government</span></a> ignores calls for action on <a href=\"https://undefined.social/tags/PFAS\" class=\"mention hashtag\" rel=\"tag\">#<span>PFAS</span></a> <a href=\"https://undefined.social/tags/Gaza\" class=\"mention hashtag\" rel=\"tag\">#<span>Gaza</span></a> <a href=\"https://undefined.social/tags/Climate\" class=\"mention hashtag\" rel=\"tag\">#<span>Climate</span></a></p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://fediscience.org/@petergleick\" class=\"u-url mention\">@<span>petergleick</span></a></span> </p><p>The <a href=\"https://undefined.social/tags/government\" class=\"mention hashtag\" rel=\"tag\">#<span>government</span></a> ignores calls for action on <a href=\"https://undefined.social/tags/PFAS\" class=\"mention hashtag\" rel=\"tag\">#<span>PFAS</span></a> <a href=\"https://undefined.social/tags/Gaza\" class=\"mention hashtag\" rel=\"tag\">#<span>Gaza</span></a> <a href=\"https://undefined.social/tags/Climate\" class=\"mention hashtag\" rel=\"tag\">#<span>Climate</span></a></p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://fediscience.org/users/petergleick", "name": "@petergleick@fediscience.org" }, { "type": "Hashtag", "href": "https://undefined.social/tags/government", "name": "#government" }, { "type": "Hashtag", "href": "https://undefined.social/tags/pfas", "name": "#pfas" }, { "type": "Hashtag", "href": "https://undefined.social/tags/gaza", "name": "#gaza" }, { "type": "Hashtag", "href": "https://undefined.social/tags/climate", "name": "#climate" } ], "replies": { "id": "https://undefined.social/users/Whinery/statuses/114779629006550892/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://undefined.social/users/Whinery/statuses/114779629006550892/replies?only_other_accounts=true&page=true", "partOf": "https://undefined.social/users/Whinery/statuses/114779629006550892/replies", "items": [] } }, "likes": { "id": "https://undefined.social/users/Whinery/statuses/114779629006550892/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://undefined.social/users/Whinery/statuses/114779629006550892/shares", "type": "Collection", "totalItems": 0 } }