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://mastodon.social/users/h4ckernews/statuses/114670803034553410", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-12T14:13:15Z", "url": "https://mastodon.social/@h4ckernews/114670803034553410", "attributedTo": "https://mastodon.social/users/h4ckernews", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/h4ckernews/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/h4ckernews/statuses/114670803034553410", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-06-12:objectId=1021289623:objectType=Conversation", "content": "<p>CP/M 2.2, CP/M 3.0, CP/M-86, Concurrent CP/M-86 listings by Digital Research</p><p><a href=\"http://www.bitsavers.org/pdf/digitalResearch/CPM_Listings/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">http://www.</span><span class=\"ellipsis\">bitsavers.org/pdf/digitalResea</span><span class=\"invisible\">rch/CPM_Listings/</span></a></p><p><a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a> <a href=\"https://mastodon.social/tags/CPM\" class=\"mention hashtag\" rel=\"tag\">#<span>CPM</span></a> #2.2 <a href=\"https://mastodon.social/tags/CP\" class=\"mention hashtag\" rel=\"tag\">#<span>CP</span></a>/M #3.0 <a href=\"https://mastodon.social/tags/Digital\" class=\"mention hashtag\" rel=\"tag\">#<span>Digital</span></a> <a href=\"https://mastodon.social/tags/Research\" class=\"mention hashtag\" rel=\"tag\">#<span>Research</span></a> <a href=\"https://mastodon.social/tags/Vintage\" class=\"mention hashtag\" rel=\"tag\">#<span>Vintage</span></a> <a href=\"https://mastodon.social/tags/Computing\" class=\"mention hashtag\" rel=\"tag\">#<span>Computing</span></a> <a href=\"https://mastodon.social/tags/Software\" class=\"mention hashtag\" rel=\"tag\">#<span>Software</span></a> <a href=\"https://mastodon.social/tags/Preservation\" class=\"mention hashtag\" rel=\"tag\">#<span>Preservation</span></a></p>", "contentMap": { "en": "<p>CP/M 2.2, CP/M 3.0, CP/M-86, Concurrent CP/M-86 listings by Digital Research</p><p><a href=\"http://www.bitsavers.org/pdf/digitalResearch/CPM_Listings/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">http://www.</span><span class=\"ellipsis\">bitsavers.org/pdf/digitalResea</span><span class=\"invisible\">rch/CPM_Listings/</span></a></p><p><a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a> <a href=\"https://mastodon.social/tags/CPM\" class=\"mention hashtag\" rel=\"tag\">#<span>CPM</span></a> #2.2 <a href=\"https://mastodon.social/tags/CP\" class=\"mention hashtag\" rel=\"tag\">#<span>CP</span></a>/M #3.0 <a href=\"https://mastodon.social/tags/Digital\" class=\"mention hashtag\" rel=\"tag\">#<span>Digital</span></a> <a href=\"https://mastodon.social/tags/Research\" class=\"mention hashtag\" rel=\"tag\">#<span>Research</span></a> <a href=\"https://mastodon.social/tags/Vintage\" class=\"mention hashtag\" rel=\"tag\">#<span>Vintage</span></a> <a href=\"https://mastodon.social/tags/Computing\" class=\"mention hashtag\" rel=\"tag\">#<span>Computing</span></a> <a href=\"https://mastodon.social/tags/Software\" class=\"mention hashtag\" rel=\"tag\">#<span>Software</span></a> <a href=\"https://mastodon.social/tags/Preservation\" class=\"mention hashtag\" rel=\"tag\">#<span>Preservation</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/hackernews", "name": "#hackernews" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/cpm", "name": "#cpm" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/cp", "name": "#cp" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/digital", "name": "#digital" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/research", "name": "#research" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/vintage", "name": "#vintage" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/computing", "name": "#computing" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/software", "name": "#software" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/preservation", "name": "#preservation" } ], "replies": { "id": "https://mastodon.social/users/h4ckernews/statuses/114670803034553410/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/h4ckernews/statuses/114670803034553410/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/h4ckernews/statuses/114670803034553410/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/h4ckernews/statuses/114670803034553410/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mastodon.social/users/h4ckernews/statuses/114670803034553410/shares", "type": "Collection", "totalItems": 1 } }