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" } ], "id": "https://mastodon.social/users/rustaceans/statuses/114787844701507898/replies", "type": "Collection", "first": { "id": "https://mastodon.social/users/rustaceans/statuses/114787844701507898/replies?page=true", "type": "CollectionPage", "next": "https://mastodon.social/users/rustaceans/statuses/114787844701507898/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/rustaceans/statuses/114787844701507898/replies", "items": [ { "id": "https://mastodon.social/users/rustaceans/statuses/114787844732975061", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/rustaceans/statuses/114787844701507898", "published": "2025-07-03T06:18:29Z", "url": "https://mastodon.social/@rustaceans/114787844732975061", "attributedTo": "https://mastodon.social/users/rustaceans", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rustaceans/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rustaceans/statuses/114787844732975061", "inReplyToAtomUri": "https://mastodon.social/users/rustaceans/statuses/114787844701507898", "conversation": "tag:mastodon.social,2025-07-03:objectId=1038569291:objectType=Conversation", "content": "<p>Write a word_frequency function that reads a string of text and counts the frequency of each word, ignoring case and punctuation.</p><p>Return the results as a sorted list of word-frequency pairs, where words are in lowercase and sorted alphabetically.</p>", "contentMap": { "en": "<p>Write a word_frequency function that reads a string of text and counts the frequency of each word, ignoring case and punctuation.</p><p>Return the results as a sorted list of word-frequency pairs, where words are in lowercase and sorted alphabetically.</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mastodon.social/users/rustaceans/statuses/114787844732975061/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rustaceans/statuses/114787844732975061/replies?min_id=114787844757933976&page=true", "partOf": "https://mastodon.social/users/rustaceans/statuses/114787844732975061/replies", "items": [ "https://mastodon.social/users/rustaceans/statuses/114787844757933976" ] } }, "likes": { "id": "https://mastodon.social/users/rustaceans/statuses/114787844732975061/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mastodon.social/users/rustaceans/statuses/114787844732975061/shares", "type": "Collection", "totalItems": 0 } } ] } }