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://mstdn.social/users/embedded/statuses/114712278765018141", "type": "Note", "summary": null, "inReplyTo": "https://mstdn.social/users/embedded/statuses/114712272331158253", "published": "2025-06-19T22:01:04Z", "url": "https://mstdn.social/@embedded/114712278765018141", "attributedTo": "https://mstdn.social/users/embedded", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mstdn.social/users/embedded/followers" ], "sensitive": false, "atomUri": "https://mstdn.social/users/embedded/statuses/114712278765018141", "inReplyToAtomUri": "https://mstdn.social/users/embedded/statuses/114712272331158253", "conversation": "tag:mstdn.social,2025-06-19:objectId=571012400:objectType=Conversation", "content": "<p>...</p><p>Support Embedded( <a href=\"https://embedded.fm/support\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">embedded.fm/support</span><span class=\"invisible\"></span></a> ) and get an invite to join the slack.</p><p><a href=\"https://mstdn.social/tags/embedded\" class=\"mention hashtag\" rel=\"tag\">#<span>embedded</span></a> <a href=\"https://mstdn.social/tags/engineering\" class=\"mention hashtag\" rel=\"tag\">#<span>engineering</span></a> <a href=\"https://mstdn.social/tags/machinelearning\" class=\"mention hashtag\" rel=\"tag\">#<span>machinelearning</span></a> <a href=\"https://mstdn.social/tags/ml\" class=\"mention hashtag\" rel=\"tag\">#<span>ml</span></a> <a href=\"https://mstdn.social/tags/datascience\" class=\"mention hashtag\" rel=\"tag\">#<span>datascience</span></a> <a href=\"https://mstdn.social/tags/ai\" class=\"mention hashtag\" rel=\"tag\">#<span>ai</span></a> <a href=\"https://mstdn.social/tags/bookclub\" class=\"mention hashtag\" rel=\"tag\">#<span>bookclub</span></a> <a href=\"https://mstdn.social/tags/reading\" class=\"mention hashtag\" rel=\"tag\">#<span>reading</span></a> <a href=\"https://mstdn.social/tags/signalprocessing\" class=\"mention hashtag\" rel=\"tag\">#<span>signalprocessing</span></a> <a href=\"https://mstdn.social/tags/slack\" class=\"mention hashtag\" rel=\"tag\">#<span>slack</span></a> <a href=\"https://mstdn.social/tags/math\" class=\"mention hashtag\" rel=\"tag\">#<span>math</span></a> <a href=\"https://mstdn.social/tags/mathematics\" class=\"mention hashtag\" rel=\"tag\">#<span>mathematics</span></a> <a href=\"https://mstdn.social/tags/computerscience\" class=\"mention hashtag\" rel=\"tag\">#<span>computerscience</span></a> <a href=\"https://mstdn.social/tags/embeddedengineer\" class=\"mention hashtag\" rel=\"tag\">#<span>embeddedengineer</span></a> <a href=\"https://mstdn.social/tags/stemeducation\" class=\"mention hashtag\" rel=\"tag\">#<span>stemeducation</span></a> <a href=\"https://mstdn.social/tags/slack\" class=\"mention hashtag\" rel=\"tag\">#<span>slack</span></a></p><p>2/2</p>", "contentMap": { "en": "<p>...</p><p>Support Embedded( <a href=\"https://embedded.fm/support\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">embedded.fm/support</span><span class=\"invisible\"></span></a> ) and get an invite to join the slack.</p><p><a href=\"https://mstdn.social/tags/embedded\" class=\"mention hashtag\" rel=\"tag\">#<span>embedded</span></a> <a href=\"https://mstdn.social/tags/engineering\" class=\"mention hashtag\" rel=\"tag\">#<span>engineering</span></a> <a href=\"https://mstdn.social/tags/machinelearning\" class=\"mention hashtag\" rel=\"tag\">#<span>machinelearning</span></a> <a href=\"https://mstdn.social/tags/ml\" class=\"mention hashtag\" rel=\"tag\">#<span>ml</span></a> <a href=\"https://mstdn.social/tags/datascience\" class=\"mention hashtag\" rel=\"tag\">#<span>datascience</span></a> <a href=\"https://mstdn.social/tags/ai\" class=\"mention hashtag\" rel=\"tag\">#<span>ai</span></a> <a href=\"https://mstdn.social/tags/bookclub\" class=\"mention hashtag\" rel=\"tag\">#<span>bookclub</span></a> <a href=\"https://mstdn.social/tags/reading\" class=\"mention hashtag\" rel=\"tag\">#<span>reading</span></a> <a href=\"https://mstdn.social/tags/signalprocessing\" class=\"mention hashtag\" rel=\"tag\">#<span>signalprocessing</span></a> <a href=\"https://mstdn.social/tags/slack\" class=\"mention hashtag\" rel=\"tag\">#<span>slack</span></a> <a href=\"https://mstdn.social/tags/math\" class=\"mention hashtag\" rel=\"tag\">#<span>math</span></a> <a href=\"https://mstdn.social/tags/mathematics\" class=\"mention hashtag\" rel=\"tag\">#<span>mathematics</span></a> <a href=\"https://mstdn.social/tags/computerscience\" class=\"mention hashtag\" rel=\"tag\">#<span>computerscience</span></a> <a href=\"https://mstdn.social/tags/embeddedengineer\" class=\"mention hashtag\" rel=\"tag\">#<span>embeddedengineer</span></a> <a href=\"https://mstdn.social/tags/stemeducation\" class=\"mention hashtag\" rel=\"tag\">#<span>stemeducation</span></a> <a href=\"https://mstdn.social/tags/slack\" class=\"mention hashtag\" rel=\"tag\">#<span>slack</span></a></p><p>2/2</p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mstdn.social/tags/Embedded", "name": "#Embedded" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/engineering", "name": "#engineering" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/MachineLearning", "name": "#MachineLearning" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/ml", "name": "#ml" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/DataScience", "name": "#DataScience" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/AI", "name": "#AI" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/bookclub", "name": "#bookclub" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/Reading", "name": "#Reading" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/signalprocessing", "name": "#signalprocessing" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/Slack", "name": "#Slack" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/Math", "name": "#Math" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/mathematics", "name": "#mathematics" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/computerscience", "name": "#computerscience" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/embeddedengineer", "name": "#embeddedengineer" }, { "type": "Hashtag", "href": "https://mstdn.social/tags/STEMEducation", "name": "#STEMEducation" } ], "replies": { "id": "https://mstdn.social/users/embedded/statuses/114712278765018141/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mstdn.social/users/embedded/statuses/114712278765018141/replies?only_other_accounts=true&page=true", "partOf": "https://mstdn.social/users/embedded/statuses/114712278765018141/replies", "items": [] } }, "likes": { "id": "https://mstdn.social/users/embedded/statuses/114712278765018141/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://mstdn.social/users/embedded/statuses/114712278765018141/shares", "type": "Collection", "totalItems": 2 } }