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://mastodon.nl/users/reinoudk/statuses/113825882434400230", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-01-14T08:58:49Z", "url": "https://mastodon.nl/@reinoudk/113825882434400230", "attributedTo": "https://mastodon.nl/users/reinoudk", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.nl/users/reinoudk/followers", "https://mastodon.nl/users/volkskrant", "https://mathstodon.xyz/users/ionica" ], "sensitive": false, "atomUri": "https://mastodon.nl/users/reinoudk/statuses/113825882434400230", "inReplyToAtomUri": null, "conversation": "tag:mastodon.nl,2025-01-14:objectId=138137247:objectType=Conversation", "content": "<p>2025 = (1+2+3+4+5+6+7+8+9)² = 1³+2³+3³+4³+5³+6³+7³+8³+9³</p><p>Leuk toch? Meer bijzonderheden over 2025 en <a href=\"https://mastodon.nl/tags/Nichomachus\" class=\"mention hashtag\" rel=\"tag\">#<span>Nichomachus</span></a> in dit artikel geschreven door <span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@ionica\" class=\"u-url mention\">@<span>ionica</span></a></span> </p><p>[Artikel] 𝗪𝗮𝘁 𝟮𝟬𝟮𝟱 𝗼𝗼𝗸 𝗺𝗮𝗴 𝗯𝗿𝗲𝗻𝗴𝗲𝗻, 𝗵𝗲𝘁 𝗷𝗮𝗮𝗿𝘁𝗮𝗹 𝗶𝘀 𝘄𝗲𝗿𝗸𝗲𝗹𝗶𝗷𝗸 𝗲𝗲𝗻 𝗳𝗮𝗻𝘁𝗮𝘀𝘁𝗶𝘀𝗰𝗵 𝗴𝗲𝘁𝗮𝗹</p><p>Door Ionica Smeets</p><p><a href=\"https://www.volkskrant.nl/wetenschap/wat-2025-ook-mag-brengen-het-jaartal-is-werkelijk-een-fantastisch-getal~bbf035c7/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">volkskrant.nl/wetenschap/wat-2</span><span class=\"invisible\">025-ook-mag-brengen-het-jaartal-is-werkelijk-een-fantastisch-getal~bbf035c7/</span></a> via <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.nl/@volkskrant\" class=\"u-url mention\">@<span>volkskrant</span></a></span></p><p><a href=\"https://mastodon.nl/tags/Wiskunde\" class=\"mention hashtag\" rel=\"tag\">#<span>Wiskunde</span></a> <a href=\"https://mastodon.nl/tags/Algebra\" class=\"mention hashtag\" rel=\"tag\">#<span>Algebra</span></a> <a href=\"https://mastodon.nl/tags/Rekenen\" class=\"mention hashtag\" rel=\"tag\">#<span>Rekenen</span></a> <a href=\"https://mastodon.nl/tags/IonicaSmeets\" class=\"mention hashtag\" rel=\"tag\">#<span>IonicaSmeets</span></a> <a href=\"https://mastodon.nl/tags/Volkskrant\" class=\"mention hashtag\" rel=\"tag\">#<span>Volkskrant</span></a></p>", "contentMap": { "nl": "<p>2025 = (1+2+3+4+5+6+7+8+9)² = 1³+2³+3³+4³+5³+6³+7³+8³+9³</p><p>Leuk toch? Meer bijzonderheden over 2025 en <a href=\"https://mastodon.nl/tags/Nichomachus\" class=\"mention hashtag\" rel=\"tag\">#<span>Nichomachus</span></a> in dit artikel geschreven door <span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@ionica\" class=\"u-url mention\">@<span>ionica</span></a></span> </p><p>[Artikel] 𝗪𝗮𝘁 𝟮𝟬𝟮𝟱 𝗼𝗼𝗸 𝗺𝗮𝗴 𝗯𝗿𝗲𝗻𝗴𝗲𝗻, 𝗵𝗲𝘁 𝗷𝗮𝗮𝗿𝘁𝗮𝗹 𝗶𝘀 𝘄𝗲𝗿𝗸𝗲𝗹𝗶𝗷𝗸 𝗲𝗲𝗻 𝗳𝗮𝗻𝘁𝗮𝘀𝘁𝗶𝘀𝗰𝗵 𝗴𝗲𝘁𝗮𝗹</p><p>Door Ionica Smeets</p><p><a href=\"https://www.volkskrant.nl/wetenschap/wat-2025-ook-mag-brengen-het-jaartal-is-werkelijk-een-fantastisch-getal~bbf035c7/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">volkskrant.nl/wetenschap/wat-2</span><span class=\"invisible\">025-ook-mag-brengen-het-jaartal-is-werkelijk-een-fantastisch-getal~bbf035c7/</span></a> via <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.nl/@volkskrant\" class=\"u-url mention\">@<span>volkskrant</span></a></span></p><p><a href=\"https://mastodon.nl/tags/Wiskunde\" class=\"mention hashtag\" rel=\"tag\">#<span>Wiskunde</span></a> <a href=\"https://mastodon.nl/tags/Algebra\" class=\"mention hashtag\" rel=\"tag\">#<span>Algebra</span></a> <a href=\"https://mastodon.nl/tags/Rekenen\" class=\"mention hashtag\" rel=\"tag\">#<span>Rekenen</span></a> <a href=\"https://mastodon.nl/tags/IonicaSmeets\" class=\"mention hashtag\" rel=\"tag\">#<span>IonicaSmeets</span></a> <a href=\"https://mastodon.nl/tags/Volkskrant\" class=\"mention hashtag\" rel=\"tag\">#<span>Volkskrant</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "video/mp4", "url": "https://mastodon.nl/system/media_attachments/files/113/825/872/682/167/062/original/2fc1cd3e56f262b1.mp4", "name": "Animatie van een dansende pinguïn, met vuurwerksterretjes in zijn vleugels, voor een iglo met de tekst: «I'm so excited with 2025»", "blurhash": "UIOe*@RnL*xrICoKpFWXASobX-Rnt3R-V[s,", "width": 220, "height": 220 } ], "tag": [ { "type": "Mention", "href": "https://mathstodon.xyz/users/ionica", "name": "@ionica@mathstodon.xyz" }, { "type": "Mention", "href": "https://mastodon.nl/users/volkskrant", "name": "@volkskrant" }, { "type": "Hashtag", "href": "https://mastodon.nl/tags/volkskrant", "name": "#volkskrant" }, { "type": "Hashtag", "href": "https://mastodon.nl/tags/ionicasmeets", "name": "#ionicasmeets" }, { "type": "Hashtag", "href": "https://mastodon.nl/tags/rekenen", "name": "#rekenen" }, { "type": "Hashtag", "href": "https://mastodon.nl/tags/algebra", "name": "#algebra" }, { "type": "Hashtag", "href": "https://mastodon.nl/tags/Wiskunde", "name": "#Wiskunde" }, { "type": "Hashtag", "href": "https://mastodon.nl/tags/nichomachus", "name": "#nichomachus" } ], "replies": { "id": "https://mastodon.nl/users/reinoudk/statuses/113825882434400230/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.nl/users/reinoudk/statuses/113825882434400230/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.nl/users/reinoudk/statuses/113825882434400230/replies", "items": [] } } }