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.

Open in browser →
{ "@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://fosstodon.org/users/jameshowell/statuses/114359894127545149", "type": "Note", "summary": null, "inReplyTo": "https://functional.cafe/users/tfb/statuses/114357642712668414", "published": "2025-04-18T16:25:01Z", "url": "https://fosstodon.org/@jameshowell/114359894127545149", "attributedTo": "https://fosstodon.org/users/jameshowell", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://fosstodon.org/users/jameshowell/followers", "https://functional.cafe/users/tfb", "https://mastodon.bsd.cafe/users/zirias", "https://fosstodon.org/users/jbqueru", "https://mastodon.bsd.cafe/users/gumnos", "https://mastodon.bsd.cafe/users/mms" ], "sensitive": false, "atomUri": "https://fosstodon.org/users/jameshowell/statuses/114359894127545149", "inReplyToAtomUri": "https://functional.cafe/users/tfb/statuses/114357642712668414", "conversation": "tag:bsd.cafe,2025-04-14:objectId=15735725:objectType=Conversation", "content": "<p>My esteemed and venerable mentor learned the 6502 ten years before my story on his beloved KIM-1.</p><p>He would write a program in pencil on graph paper, noodling out hexadecimal opcodes by hand. Right out of his head. Then he would key them in on the tiny keypad. Because an assembler was a kind of software that had not yet been invented.</p><p>He was still doing it that way in the mid-80s.</p><p><span class=\"h-card\" translate=\"no\"><a href=\"https://functional.cafe/@tfb\" class=\"u-url mention\">@<span>tfb</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.bsd.cafe/@zirias\" class=\"u-url mention\">@<span>zirias</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://fosstodon.org/@jbqueru\" class=\"u-url mention\">@<span>jbqueru</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.bsd.cafe/@gumnos\" class=\"u-url mention\">@<span>gumnos</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.bsd.cafe/@mms\" class=\"u-url mention\">@<span>mms</span></a></span></p><p><a href=\"https://en.m.wikipedia.org/wiki/KIM-1\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">en.m.wikipedia.org/wiki/KIM-1</span><span class=\"invisible\"></span></a></p>", "contentMap": { "fr": "<p>My esteemed and venerable mentor learned the 6502 ten years before my story on his beloved KIM-1.</p><p>He would write a program in pencil on graph paper, noodling out hexadecimal opcodes by hand. Right out of his head. Then he would key them in on the tiny keypad. Because an assembler was a kind of software that had not yet been invented.</p><p>He was still doing it that way in the mid-80s.</p><p><span class=\"h-card\" translate=\"no\"><a href=\"https://functional.cafe/@tfb\" class=\"u-url mention\">@<span>tfb</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.bsd.cafe/@zirias\" class=\"u-url mention\">@<span>zirias</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://fosstodon.org/@jbqueru\" class=\"u-url mention\">@<span>jbqueru</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.bsd.cafe/@gumnos\" class=\"u-url mention\">@<span>gumnos</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.bsd.cafe/@mms\" class=\"u-url mention\">@<span>mms</span></a></span></p><p><a href=\"https://en.m.wikipedia.org/wiki/KIM-1\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">en.m.wikipedia.org/wiki/KIM-1</span><span class=\"invisible\"></span></a></p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://functional.cafe/users/tfb", "name": "@tfb@functional.cafe" }, { "type": "Mention", "href": "https://mastodon.bsd.cafe/users/zirias", "name": "@zirias@bsd.cafe" }, { "type": "Mention", "href": "https://fosstodon.org/users/jbqueru", "name": "@jbqueru" }, { "type": "Mention", "href": "https://mastodon.bsd.cafe/users/gumnos", "name": "@gumnos@bsd.cafe" }, { "type": "Mention", "href": "https://mastodon.bsd.cafe/users/mms", "name": "@mms@bsd.cafe" } ], "replies": { "id": "https://fosstodon.org/users/jameshowell/statuses/114359894127545149/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://fosstodon.org/users/jameshowell/statuses/114359894127545149/replies?only_other_accounts=true&page=true", "partOf": "https://fosstodon.org/users/jameshowell/statuses/114359894127545149/replies", "items": [] } }, "likes": { "id": "https://fosstodon.org/users/jameshowell/statuses/114359894127545149/likes", "type": "Collection", "totalItems": 4 }, "shares": { "id": "https://fosstodon.org/users/jameshowell/statuses/114359894127545149/shares", "type": "Collection", "totalItems": 0 } }