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", "litepub": "http://litepub.social/ns#", "directMessage": "litepub:directMessage", "Hashtag": "as:Hashtag" } ], "id": "https://functional.cafe/users/loke/statuses/114377100425979756", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-04-21T17:20:48Z", "url": "https://functional.cafe/@loke/114377100425979756", "attributedTo": "https://functional.cafe/users/loke", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://functional.cafe/users/loke/followers" ], "sensitive": false, "atomUri": "https://functional.cafe/users/loke/statuses/114377100425979756", "inReplyToAtomUri": null, "conversation": "tag:functional.cafe,2025-04-21:objectId=52410006:objectType=Conversation", "content": "<p>Does anyone know of a Common Lisp activitypub library that is complete enough to implement subscription to accounts, tracking subscribers and posting messages?</p><p>I want to build a small service which allows users to tag it in a message (or users can ask the serviceto subscribeto it, in which case it will absorb all mesaages), and conaume those messages, and then post updates to its main feed.</p><p><a href=\"https://functional.cafe/tags/lisp\" class=\"mention hashtag\" rel=\"tag\">#<span>lisp</span></a> <a href=\"https://functional.cafe/tags/commonlisp\" class=\"mention hashtag\" rel=\"tag\">#<span>commonlisp</span></a> <a href=\"https://functional.cafe/tags/activitypub\" class=\"mention hashtag\" rel=\"tag\">#<span>activitypub</span></a></p>", "contentMap": { "en": "<p>Does anyone know of a Common Lisp activitypub library that is complete enough to implement subscription to accounts, tracking subscribers and posting messages?</p><p>I want to build a small service which allows users to tag it in a message (or users can ask the serviceto subscribeto it, in which case it will absorb all mesaages), and conaume those messages, and then post updates to its main feed.</p><p><a href=\"https://functional.cafe/tags/lisp\" class=\"mention hashtag\" rel=\"tag\">#<span>lisp</span></a> <a href=\"https://functional.cafe/tags/commonlisp\" class=\"mention hashtag\" rel=\"tag\">#<span>commonlisp</span></a> <a href=\"https://functional.cafe/tags/activitypub\" class=\"mention hashtag\" rel=\"tag\">#<span>activitypub</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://functional.cafe/tags/lisp", "name": "#lisp" }, { "type": "Hashtag", "href": "https://functional.cafe/tags/commonlisp", "name": "#commonlisp" }, { "type": "Hashtag", "href": "https://functional.cafe/tags/activitypub", "name": "#activitypub" } ], "replies": { "id": "https://functional.cafe/users/loke/statuses/114377100425979756/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://functional.cafe/users/loke/statuses/114377100425979756/replies?only_other_accounts=true&page=true", "partOf": "https://functional.cafe/users/loke/statuses/114377100425979756/replies", "items": [] } }, "likes": { "id": "https://functional.cafe/users/loke/statuses/114377100425979756/likes", "type": "Collection", "totalItems": 7 }, "shares": { "id": "https://functional.cafe/users/loke/statuses/114377100425979756/shares", "type": "Collection", "totalItems": 11 } }