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", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" }, "Hashtag": "as:Hashtag" } ], "id": "https://mathstodon.xyz/users/ngons/collections/featured", "type": "OrderedCollection", "totalItems": 4, "orderedItems": [ { "id": "https://mathstodon.xyz/users/ngons/statuses/114649368549843037", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-08T19:22:10Z", "url": "https://mathstodon.xyz/@ngons/114649368549843037", "attributedTo": "https://mathstodon.xyz/users/ngons", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/ngons/followers", "https://mementomori.social/users/laamaa" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/ngons/statuses/114649368549843037", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2025-06-08:objectId=157237731:objectType=Conversation", "content": "<p>Im DJing(as NXPNSV) at the <a href=\"https://mathstodon.xyz/tags/LSDJ\" class=\"mention hashtag\" rel=\"tag\">#<span>LSDJ</span></a> 25th party(July 5th in Stockholm). I’ll spin electro, synth &amp; chiptune. Also: 6 live acts (including @<span class=\"h-card\" translate=\"no\"><a href=\"https://mementomori.social/@laamaa\" class=\"u-url mention\">@<span>laamaa</span></a></span> ‪@zabutom.bsky.social‬) + VJ! It will be epic! More info at: <a href=\"https://www.littlesounddj.com/25th/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">littlesounddj.com/25th/</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mathstodon.xyz/tags/ChipTune\" class=\"mention hashtag\" rel=\"tag\">#<span>ChipTune</span></a> <a href=\"https://mathstodon.xyz/tags/8bit\" class=\"mention hashtag\" rel=\"tag\">#<span>8bit</span></a> <a href=\"https://mathstodon.xyz/tags/chip\" class=\"mention hashtag\" rel=\"tag\">#<span>chip</span></a> <a href=\"https://mathstodon.xyz/tags/gameboy\" class=\"mention hashtag\" rel=\"tag\">#<span>gameboy</span></a> <a href=\"https://mathstodon.xyz/tags/music\" class=\"mention hashtag\" rel=\"tag\">#<span>music</span></a> <a href=\"https://mathstodon.xyz/tags/demo\" class=\"mention hashtag\" rel=\"tag\">#<span>demo</span></a> <a href=\"https://mathstodon.xyz/tags/littlesounddj\" class=\"mention hashtag\" rel=\"tag\">#<span>littlesounddj</span></a></p>", "contentMap": { "en": "<p>Im DJing(as NXPNSV) at the <a href=\"https://mathstodon.xyz/tags/LSDJ\" class=\"mention hashtag\" rel=\"tag\">#<span>LSDJ</span></a> 25th party(July 5th in Stockholm). I’ll spin electro, synth &amp; chiptune. Also: 6 live acts (including @<span class=\"h-card\" translate=\"no\"><a href=\"https://mementomori.social/@laamaa\" class=\"u-url mention\">@<span>laamaa</span></a></span> ‪@zabutom.bsky.social‬) + VJ! It will be epic! More info at: <a href=\"https://www.littlesounddj.com/25th/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">littlesounddj.com/25th/</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mathstodon.xyz/tags/ChipTune\" class=\"mention hashtag\" rel=\"tag\">#<span>ChipTune</span></a> <a href=\"https://mathstodon.xyz/tags/8bit\" class=\"mention hashtag\" rel=\"tag\">#<span>8bit</span></a> <a href=\"https://mathstodon.xyz/tags/chip\" class=\"mention hashtag\" rel=\"tag\">#<span>chip</span></a> <a href=\"https://mathstodon.xyz/tags/gameboy\" class=\"mention hashtag\" rel=\"tag\">#<span>gameboy</span></a> <a href=\"https://mathstodon.xyz/tags/music\" class=\"mention hashtag\" rel=\"tag\">#<span>music</span></a> <a href=\"https://mathstodon.xyz/tags/demo\" class=\"mention hashtag\" rel=\"tag\">#<span>demo</span></a> <a href=\"https://mathstodon.xyz/tags/littlesounddj\" class=\"mention hashtag\" rel=\"tag\">#<span>littlesounddj</span></a></p>" }, "updated": "2025-06-08T19:36:28Z", "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://media.mathstodon.xyz/media_attachments/files/114/649/421/930/525/200/original/9c80d26cb926c54b.jpg", "name": "Colourful event fyler for LSDJ 25th. Checkout https://littlesounddj.com/25th for more details", "blurhash": "UFJ7wJxm?FJ5_KxWm.I;?vrxDmM,53,;$nr?", "focalPoint": [ 0.1, 1 ], "width": 1131, "height": 1600 } ], "tag": [ { "type": "Mention", "href": "https://mementomori.social/users/laamaa", "name": "@laamaa@mementomori.social" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/littlesounddj", "name": "#littlesounddj" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/demo", "name": "#demo" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/music", "name": "#music" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/gameboy", "name": "#gameboy" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/chip", "name": "#chip" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/8bit", "name": "#8bit" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/chiptune", "name": "#chiptune" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/lsdj", "name": "#lsdj" } ], "replies": { "id": "https://mathstodon.xyz/users/ngons/statuses/114649368549843037/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/ngons/statuses/114649368549843037/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/ngons/statuses/114649368549843037/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/ngons/statuses/114649368549843037/likes", "type": "Collection", "totalItems": 8 }, "shares": { "id": "https://mathstodon.xyz/users/ngons/statuses/114649368549843037/shares", "type": "Collection", "totalItems": 8 } }, { "id": "https://mathstodon.xyz/users/ngons/statuses/112993607597992989", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-08-20T09:20:24Z", "url": "https://mathstodon.xyz/@ngons/112993607597992989", "attributedTo": "https://mathstodon.xyz/users/ngons", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/ngons/followers", "https://mathstodon.xyz/users/hedron" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/ngons/statuses/112993607597992989", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2024-08-20:objectId=110813967:objectType=Conversation", "content": "<p><a href=\"https://mathstodon.xyz/tags/TilingTuesday\" class=\"mention hashtag\" rel=\"tag\">#<span>TilingTuesday</span></a> - closed tiling of 122 equilateral polyhedra.</p><p>Exploring new shape in upcoming release by <span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@hedron\" class=\"u-url mention\">@<span>hedron</span></a></span></p><p><a href=\"https://mathstodon.xyz/tags/MathArt\" class=\"mention hashtag\" rel=\"tag\">#<span>MathArt</span></a> <a href=\"https://mathstodon.xyz/tags/MathsArt\" class=\"mention hashtag\" rel=\"tag\">#<span>MathsArt</span></a> <a href=\"https://mathstodon.xyz/tags/Geometry\" class=\"mention hashtag\" rel=\"tag\">#<span>Geometry</span></a> <a href=\"https://mathstodon.xyz/tags/Polyhedron\" class=\"mention hashtag\" rel=\"tag\">#<span>Polyhedron</span></a> <a href=\"https://mathstodon.xyz/tags/3d\" class=\"mention hashtag\" rel=\"tag\">#<span>3d</span></a> <a href=\"https://mathstodon.xyz/tags/PerfectLoop\" class=\"mention hashtag\" rel=\"tag\">#<span>PerfectLoop</span></a></p>", "contentMap": { "en": "<p><a href=\"https://mathstodon.xyz/tags/TilingTuesday\" class=\"mention hashtag\" rel=\"tag\">#<span>TilingTuesday</span></a> - closed tiling of 122 equilateral polyhedra.</p><p>Exploring new shape in upcoming release by <span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@hedron\" class=\"u-url mention\">@<span>hedron</span></a></span></p><p><a href=\"https://mathstodon.xyz/tags/MathArt\" class=\"mention hashtag\" rel=\"tag\">#<span>MathArt</span></a> <a href=\"https://mathstodon.xyz/tags/MathsArt\" class=\"mention hashtag\" rel=\"tag\">#<span>MathsArt</span></a> <a href=\"https://mathstodon.xyz/tags/Geometry\" class=\"mention hashtag\" rel=\"tag\">#<span>Geometry</span></a> <a href=\"https://mathstodon.xyz/tags/Polyhedron\" class=\"mention hashtag\" rel=\"tag\">#<span>Polyhedron</span></a> <a href=\"https://mathstodon.xyz/tags/3d\" class=\"mention hashtag\" rel=\"tag\">#<span>3d</span></a> <a href=\"https://mathstodon.xyz/tags/PerfectLoop\" class=\"mention hashtag\" rel=\"tag\">#<span>PerfectLoop</span></a></p>" }, "updated": "2024-08-20T09:20:59Z", "attachment": [ { "type": "Document", "mediaType": "video/mp4", "url": "https://media.mathstodon.xyz/media_attachments/files/112/993/592/913/174/640/original/898b92abac855a7e.mp4", "name": "Abstract mathematical art. Rotating three-dimensional mathematical object in translucent colours over black background.", "blurhash": "U95hufj@4Vayj[j[ayay4Vaz?tj[WCayoeoe", "focalPoint": [ 0, 0 ], "width": 1280, "height": 1280 } ], "tag": [ { "type": "Mention", "href": "https://mathstodon.xyz/users/hedron", "name": "@hedron" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/perfectloop", "name": "#perfectloop" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/3d", "name": "#3d" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/polyhedron", "name": "#polyhedron" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/geometry", "name": "#geometry" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/mathsart", "name": "#mathsart" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/mathart", "name": "#mathart" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/tilingtuesday", "name": "#tilingtuesday" } ], "replies": { "id": "https://mathstodon.xyz/users/ngons/statuses/112993607597992989/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/ngons/statuses/112993607597992989/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/ngons/statuses/112993607597992989/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/ngons/statuses/112993607597992989/likes", "type": "Collection", "totalItems": 76 }, "shares": { "id": "https://mathstodon.xyz/users/ngons/statuses/112993607597992989/shares", "type": "Collection", "totalItems": 31 } }, { "id": "https://mathstodon.xyz/users/ngons/statuses/112525329404462279", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-05-29T16:31:05Z", "url": "https://mathstodon.xyz/@ngons/112525329404462279", "attributedTo": "https://mathstodon.xyz/users/ngons", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/ngons/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/ngons/statuses/112525329404462279", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2024-05-29:objectId=99155446:objectType=Conversation", "content": "<p>Fractal kite tiling</p><p><a href=\"https://mathstodon.xyz/tags/Tiling\" class=\"mention hashtag\" rel=\"tag\">#<span>Tiling</span></a> <a href=\"https://mathstodon.xyz/tags/Fractal\" class=\"mention hashtag\" rel=\"tag\">#<span>Fractal</span></a> <a href=\"https://mathstodon.xyz/tags/Geometry\" class=\"mention hashtag\" rel=\"tag\">#<span>Geometry</span></a> <a href=\"https://mathstodon.xyz/tags/MathArt\" class=\"mention hashtag\" rel=\"tag\">#<span>MathArt</span></a> <a href=\"https://mathstodon.xyz/tags/MathsArt\" class=\"mention hashtag\" rel=\"tag\">#<span>MathsArt</span></a> <a href=\"https://mathstodon.xyz/tags/Art\" class=\"mention hashtag\" rel=\"tag\">#<span>Art</span></a></p>", "contentMap": { "en": "<p>Fractal kite tiling</p><p><a href=\"https://mathstodon.xyz/tags/Tiling\" class=\"mention hashtag\" rel=\"tag\">#<span>Tiling</span></a> <a href=\"https://mathstodon.xyz/tags/Fractal\" class=\"mention hashtag\" rel=\"tag\">#<span>Fractal</span></a> <a href=\"https://mathstodon.xyz/tags/Geometry\" class=\"mention hashtag\" rel=\"tag\">#<span>Geometry</span></a> <a href=\"https://mathstodon.xyz/tags/MathArt\" class=\"mention hashtag\" rel=\"tag\">#<span>MathArt</span></a> <a href=\"https://mathstodon.xyz/tags/MathsArt\" class=\"mention hashtag\" rel=\"tag\">#<span>MathsArt</span></a> <a href=\"https://mathstodon.xyz/tags/Art\" class=\"mention hashtag\" rel=\"tag\">#<span>Art</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/112/525/322/586/404/939/original/e39714f0f4141f6a.png", "name": "Abstract Mathematical Art. Tiling of identical kite shapes n different sizes, resembling a snowflake. In rainbow pastel colours. ", "blurhash": "UXIOOw#,4.OD02bEMwf8M{OE.7sA9EjJW=bF", "focalPoint": [ 0, 0 ], "width": 1970, "height": 2048 } ], "tag": [ { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/art", "name": "#art" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/mathsart", "name": "#mathsart" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/mathart", "name": "#mathart" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/geometry", "name": "#geometry" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/fractal", "name": "#fractal" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/tiling", "name": "#tiling" } ], "replies": { "id": "https://mathstodon.xyz/users/ngons/statuses/112525329404462279/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/ngons/statuses/112525329404462279/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/ngons/statuses/112525329404462279/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/ngons/statuses/112525329404462279/likes", "type": "Collection", "totalItems": 56 }, "shares": { "id": "https://mathstodon.xyz/users/ngons/statuses/112525329404462279/shares", "type": "Collection", "totalItems": 20 } }, { "id": "https://mathstodon.xyz/users/ngons/statuses/109756336668419327", "type": "Note", "summary": null, "inReplyTo": null, "published": "2023-01-26T15:59:49Z", "url": "https://mathstodon.xyz/@ngons/109756336668419327", "attributedTo": "https://mathstodon.xyz/users/ngons", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/ngons/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/ngons/statuses/109756336668419327", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2023-01-26:objectId=39028951:objectType=Conversation", "content": "<p>Decagon tangle - knot with two strands in the dissection of decagon into equilateral shapes <a href=\"https://mathstodon.xyz/tags/art\" class=\"mention hashtag\" rel=\"tag\">#<span>art</span></a> <a href=\"https://mathstodon.xyz/tags/MastoArt\" class=\"mention hashtag\" rel=\"tag\">#<span>MastoArt</span></a> <a href=\"https://mathstodon.xyz/tags/Geometry\" class=\"mention hashtag\" rel=\"tag\">#<span>Geometry</span></a> <a href=\"https://mathstodon.xyz/tags/Knots\" class=\"mention hashtag\" rel=\"tag\">#<span>Knots</span></a> <a href=\"https://mathstodon.xyz/tags/Stars\" class=\"mention hashtag\" rel=\"tag\">#<span>Stars</span></a> <a href=\"https://mathstodon.xyz/tags/Girih\" class=\"mention hashtag\" rel=\"tag\">#<span>Girih</span></a></p>", "contentMap": { "en": "<p>Decagon tangle - knot with two strands in the dissection of decagon into equilateral shapes <a href=\"https://mathstodon.xyz/tags/art\" class=\"mention hashtag\" rel=\"tag\">#<span>art</span></a> <a href=\"https://mathstodon.xyz/tags/MastoArt\" class=\"mention hashtag\" rel=\"tag\">#<span>MastoArt</span></a> <a href=\"https://mathstodon.xyz/tags/Geometry\" class=\"mention hashtag\" rel=\"tag\">#<span>Geometry</span></a> <a href=\"https://mathstodon.xyz/tags/Knots\" class=\"mention hashtag\" rel=\"tag\">#<span>Knots</span></a> <a href=\"https://mathstodon.xyz/tags/Stars\" class=\"mention hashtag\" rel=\"tag\">#<span>Stars</span></a> <a href=\"https://mathstodon.xyz/tags/Girih\" class=\"mention hashtag\" rel=\"tag\">#<span>Girih</span></a></p>" }, "updated": "2023-01-27T15:24:51Z", "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/109/756/328/988/471/421/original/3211a2946e71df9e.png", "name": "Tiling in magma and inverted magma color scales over purple/bright yellow circular gradient", "blurhash": "UDGQ^YoM0Bjbj[fQayjt4vf7KPahjujtayju", "focalPoint": [ 0, 0 ], "width": 1476, "height": 1405 } ], "tag": [ { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/girih", "name": "#girih" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/stars", "name": "#stars" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/knots", "name": "#knots" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/geometry", "name": "#geometry" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/mastoart", "name": "#mastoart" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/art", "name": "#art" } ], "replies": { "id": "https://mathstodon.xyz/users/ngons/statuses/109756336668419327/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/ngons/statuses/109756336668419327/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/ngons/statuses/109756336668419327/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/ngons/statuses/109756336668419327/likes", "type": "Collection", "totalItems": 107 }, "shares": { "id": "https://mathstodon.xyz/users/ngons/statuses/109756336668419327/shares", "type": "Collection", "totalItems": 32 } } ] }