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/ricmac/collections/featured", "type": "OrderedCollection", "totalItems": 4, "orderedItems": [ { "id": "https://mastodon.social/users/ricmac/statuses/114665254570153566", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-11T14:42:12Z", "url": "https://mastodon.social/@ricmac/114665254570153566", "attributedTo": "https://mastodon.social/users/ricmac", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/ricmac/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/ricmac/statuses/114665254570153566", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-06-11:objectId=1020417650:objectType=Conversation", "content": "<p>In 1997, the first browser war began amid new internet trends like &#39;push&#39; and DHTML. Meanwhile, instant messaging apps like ICQ and AIM became popular and GeoCities achieved 1 million users. <a href=\"https://cybercultural.com/p/internet-1997/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cybercultural.com/p/internet-1</span><span class=\"invisible\">997/</span></a> <a href=\"https://mastodon.social/tags/InternetHistory\" class=\"mention hashtag\" rel=\"tag\">#<span>InternetHistory</span></a></p>", "contentMap": { "en": "<p>In 1997, the first browser war began amid new internet trends like &#39;push&#39; and DHTML. Meanwhile, instant messaging apps like ICQ and AIM became popular and GeoCities achieved 1 million users. <a href=\"https://cybercultural.com/p/internet-1997/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cybercultural.com/p/internet-1</span><span class=\"invisible\">997/</span></a> <a href=\"https://mastodon.social/tags/InternetHistory\" class=\"mention hashtag\" rel=\"tag\">#<span>InternetHistory</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/internethistory", "name": "#internethistory" } ], "replies": { "id": "https://mastodon.social/users/ricmac/statuses/114665254570153566/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/ricmac/statuses/114665254570153566/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/ricmac/statuses/114665254570153566/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/ricmac/statuses/114665254570153566/likes", "type": "Collection", "totalItems": 13 }, "shares": { "id": "https://mastodon.social/users/ricmac/statuses/114665254570153566/shares", "type": "Collection", "totalItems": 15 } }, { "id": "https://mastodon.social/users/ricmac/statuses/114659641074397167", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-10T14:54:37Z", "url": "https://mastodon.social/@ricmac/114659641074397167", "attributedTo": "https://mastodon.social/users/ricmac", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/ricmac/followers", "https://mastodon.social/users/_elena", "https://social.coop/users/cwebber", "https://mastodon.social/users/quillmatiq", "https://fed.brid.gy/snarfed.org", "https://flipboard.com/users/mike", "https://flipboard.com/users/marci", "https://newsmast.social/users/michael", "https://newsmast.social/users/newsmast", "https://mastodon.social/users/benpate", "https://j12t.social/users/j12t", "https://mastodon.xyz/users/anca" ], "sensitive": false, "atomUri": "https://mastodon.social/users/ricmac/statuses/114659641074397167", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-06-10:objectId=1019505134:objectType=Conversation", "content": "<p>Here&#39;s my writeup of <a href=\"https://mastodon.social/tags/FediForum\" class=\"mention hashtag\" rel=\"tag\">#<span>FediForum</span></a>, in which I ask the question: is the fediverse making meaningful progress vs. centralized platforms? The post includes <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@_elena\" class=\"u-url mention\">@<span>_elena</span></a></span>&#39;s excellent video and has discussion of <span class=\"h-card\" translate=\"no\"><a href=\"https://social.coop/@cwebber\" class=\"u-url mention\">@<span>cwebber</span></a></span>&#39;s presentation, Bounce (by <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@quillmatiq\" class=\"u-url mention\">@<span>quillmatiq</span></a></span> &amp; <span class=\"h-card\" translate=\"no\"><a href=\"https://fed.brid.gy/r/https://snarfed.org/about\" class=\"u-url mention\">@<span>snarfed.org</span></a></span>), Surf (by <span class=\"h-card\" translate=\"no\"><a href=\"https://flipboard.com/@mike\" class=\"u-url mention\">@<span>mike</span></a></span> &amp; <span class=\"h-card\" translate=\"no\"><a href=\"https://flipboard.com/@marci\" class=\"u-url mention\">@<span>marci</span></a></span>), Channels.org (by <span class=\"h-card\" translate=\"no\"><a href=\"https://newsmast.social/@michael\" class=\"u-url mention\">@<span>michael</span></a></span> &amp; <span class=\"h-card\" translate=\"no\"><a href=\"https://newsmast.social/@newsmast\" class=\"u-url mention\">@<span>newsmast</span></a></span> team), &amp; Bandwagon (by <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@benpate\" class=\"u-url mention\">@<span>benpate</span></a></span>). Thx also <span class=\"h-card\" translate=\"no\"><a href=\"https://j12t.social/@j12t\" class=\"u-url mention\">@<span>j12t</span></a></span> &amp; <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.xyz/@anca\" class=\"u-url mention\">@<span>anca</span></a></span> for FediForum. The headline is via Christine: &quot;we can’t succeed without joy.&quot; <a href=\"https://thenewstack.io/bringing-joy-back-to-the-web-fediverse-vs-centralized-apps/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">thenewstack.io/bringing-joy-ba</span><span class=\"invisible\">ck-to-the-web-fediverse-vs-centralized-apps/</span></a></p>", "contentMap": { "en": "<p>Here&#39;s my writeup of <a href=\"https://mastodon.social/tags/FediForum\" class=\"mention hashtag\" rel=\"tag\">#<span>FediForum</span></a>, in which I ask the question: is the fediverse making meaningful progress vs. centralized platforms? The post includes <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@_elena\" class=\"u-url mention\">@<span>_elena</span></a></span>&#39;s excellent video and has discussion of <span class=\"h-card\" translate=\"no\"><a href=\"https://social.coop/@cwebber\" class=\"u-url mention\">@<span>cwebber</span></a></span>&#39;s presentation, Bounce (by <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@quillmatiq\" class=\"u-url mention\">@<span>quillmatiq</span></a></span> &amp; <span class=\"h-card\" translate=\"no\"><a href=\"https://fed.brid.gy/r/https://snarfed.org/about\" class=\"u-url mention\">@<span>snarfed.org</span></a></span>), Surf (by <span class=\"h-card\" translate=\"no\"><a href=\"https://flipboard.com/@mike\" class=\"u-url mention\">@<span>mike</span></a></span> &amp; <span class=\"h-card\" translate=\"no\"><a href=\"https://flipboard.com/@marci\" class=\"u-url mention\">@<span>marci</span></a></span>), Channels.org (by <span class=\"h-card\" translate=\"no\"><a href=\"https://newsmast.social/@michael\" class=\"u-url mention\">@<span>michael</span></a></span> &amp; <span class=\"h-card\" translate=\"no\"><a href=\"https://newsmast.social/@newsmast\" class=\"u-url mention\">@<span>newsmast</span></a></span> team), &amp; Bandwagon (by <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@benpate\" class=\"u-url mention\">@<span>benpate</span></a></span>). Thx also <span class=\"h-card\" translate=\"no\"><a href=\"https://j12t.social/@j12t\" class=\"u-url mention\">@<span>j12t</span></a></span> &amp; <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.xyz/@anca\" class=\"u-url mention\">@<span>anca</span></a></span> for FediForum. The headline is via Christine: &quot;we can’t succeed without joy.&quot; <a href=\"https://thenewstack.io/bringing-joy-back-to-the-web-fediverse-vs-centralized-apps/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">thenewstack.io/bringing-joy-ba</span><span class=\"invisible\">ck-to-the-web-fediverse-vs-centralized-apps/</span></a></p>" }, "updated": "2025-06-10T14:55:28Z", "attachment": [], "tag": [ { "type": "Mention", "href": "https://mastodon.social/users/_elena", "name": "@_elena" }, { "type": "Mention", "href": "https://social.coop/users/cwebber", "name": "@cwebber@social.coop" }, { "type": "Mention", "href": "https://mastodon.social/users/quillmatiq", "name": "@quillmatiq" }, { "type": "Mention", "href": "https://fed.brid.gy/snarfed.org", "name": "@snarfed.org@snarfed.org" }, { "type": "Mention", "href": "https://flipboard.com/users/mike", "name": "@mike@flipboard.com" }, { "type": "Mention", "href": "https://flipboard.com/users/marci", "name": "@marci@flipboard.com" }, { "type": "Mention", "href": "https://newsmast.social/users/michael", "name": "@michael@newsmast.social" }, { "type": "Mention", "href": "https://newsmast.social/users/newsmast", "name": "@newsmast@newsmast.social" }, { "type": "Mention", "href": "https://mastodon.social/users/benpate", "name": "@benpate" }, { "type": "Mention", "href": "https://j12t.social/users/j12t", "name": "@j12t@j12t.social" }, { "type": "Mention", "href": "https://mastodon.xyz/users/anca", "name": "@anca@mastodon.xyz" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/fediforum", "name": "#fediforum" } ], "replies": { "id": "https://mastodon.social/users/ricmac/statuses/114659641074397167/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/ricmac/statuses/114659641074397167/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/ricmac/statuses/114659641074397167/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/ricmac/statuses/114659641074397167/likes", "type": "Collection", "totalItems": 69 }, "shares": { "id": "https://mastodon.social/users/ricmac/statuses/114659641074397167/shares", "type": "Collection", "totalItems": 66 } }, { "id": "https://mastodon.social/users/ricmac/statuses/113685561010860075", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-12-20T14:13:14Z", "url": "https://mastodon.social/@ricmac/113685561010860075", "attributedTo": "https://mastodon.social/users/ricmac", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/ricmac/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/ricmac/statuses/113685561010860075", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2024-12-20:objectId=876346873:objectType=Conversation", "content": "<p>I’m thrilled to announce that my book, Bubble Blog: From Outsider to Insider in Silicon Valley&#39;s Web 2.0 Revolution, is now available to purchase as a paperback or eBook. More details, along with links to order your copy: <a href=\"https://cybercultural.com/p/book-release-bubbleblog/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cybercultural.com/p/book-relea</span><span class=\"invisible\">se-bubbleblog/</span></a> <a href=\"https://mastodon.social/tags/InternetHistory\" class=\"mention hashtag\" rel=\"tag\">#<span>InternetHistory</span></a> <a href=\"https://mastodon.social/tags/bookstodon\" class=\"mention hashtag\" rel=\"tag\">#<span>bookstodon</span></a> <a href=\"https://mastodon.social/tags/books\" class=\"mention hashtag\" rel=\"tag\">#<span>books</span></a></p>", "contentMap": { "en": "<p>I’m thrilled to announce that my book, Bubble Blog: From Outsider to Insider in Silicon Valley&#39;s Web 2.0 Revolution, is now available to purchase as a paperback or eBook. More details, along with links to order your copy: <a href=\"https://cybercultural.com/p/book-release-bubbleblog/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cybercultural.com/p/book-relea</span><span class=\"invisible\">se-bubbleblog/</span></a> <a href=\"https://mastodon.social/tags/InternetHistory\" class=\"mention hashtag\" rel=\"tag\">#<span>InternetHistory</span></a> <a href=\"https://mastodon.social/tags/bookstodon\" class=\"mention hashtag\" rel=\"tag\">#<span>bookstodon</span></a> <a href=\"https://mastodon.social/tags/books\" class=\"mention hashtag\" rel=\"tag\">#<span>books</span></a></p>" }, "updated": "2025-05-30T07:07:07Z", "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/internethistory", "name": "#internethistory" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/bookstodon", "name": "#bookstodon" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/books", "name": "#books" } ], "replies": { "id": "https://mastodon.social/users/ricmac/statuses/113685561010860075/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/ricmac/statuses/113685561010860075/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/ricmac/statuses/113685561010860075/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/ricmac/statuses/113685561010860075/likes", "type": "Collection", "totalItems": 9 }, "shares": { "id": "https://mastodon.social/users/ricmac/statuses/113685561010860075/shares", "type": "Collection", "totalItems": 10 } }, { "id": "https://mastodon.social/users/ricmac/statuses/109341965706101660", "type": "Note", "summary": null, "inReplyTo": null, "published": "2022-11-14T11:39:50Z", "url": "https://mastodon.social/@ricmac/109341965706101660", "attributedTo": "https://mastodon.social/users/ricmac", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/ricmac/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/ricmac/statuses/109341965706101660", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2022-11-14:objectId=332174831:objectType=Conversation", "content": "<p><a href=\"https://mastodon.social/tags/introduction\" class=\"mention hashtag\" rel=\"tag\">#<span>introduction</span></a> Hi I&#39;m Richard and I&#39;m looking for a new type of social media. Something akin to the blogosphere in 2004. I&#39;m an old-school tech blogger, started a site called ReadWriteWeb in 2003 and then chronicled the Web 2.0 era on it. </p><p>I&#39;m currently writing a book (<a href=\"https://mastodon.social/tags/nonfiction\" class=\"mention hashtag\" rel=\"tag\">#<span>nonfiction</span></a> <a href=\"https://mastodon.social/tags/techhistory\" class=\"mention hashtag\" rel=\"tag\">#<span>techhistory</span></a>); at least 500 words per day, usually very early in the morning.</p><p>I&#39;m a <a href=\"https://mastodon.social/tags/type1diabetic\" class=\"mention hashtag\" rel=\"tag\">#<span>type1diabetic</span></a> <a href=\"https://mastodon.social/tags/T1D\" class=\"mention hashtag\" rel=\"tag\">#<span>T1D</span></a> </p><p>My current interests:<br /><a href=\"https://mastodon.social/tags/webdev\" class=\"mention hashtag\" rel=\"tag\">#<span>webdev</span></a><br /><a href=\"https://mastodon.social/tags/fediverse\" class=\"mention hashtag\" rel=\"tag\">#<span>fediverse</span></a><br /><a href=\"https://mastodon.social/tags/AI\" class=\"mention hashtag\" rel=\"tag\">#<span>AI</span></a><br /><a href=\"https://mastodon.social/tags/InternetHistory\" class=\"mention hashtag\" rel=\"tag\">#<span>InternetHistory</span></a><br /><a href=\"https://mastodon.social/tags/11ty\" class=\"mention hashtag\" rel=\"tag\">#<span>11ty</span></a><br /><a href=\"https://mastodon.social/tags/electronicmusic\" class=\"mention hashtag\" rel=\"tag\">#<span>electronicmusic</span></a> <br /><a href=\"https://mastodon.social/tags/literature\" class=\"mention hashtag\" rel=\"tag\">#<span>literature</span></a></p>", "contentMap": { "en": "<p><a href=\"https://mastodon.social/tags/introduction\" class=\"mention hashtag\" rel=\"tag\">#<span>introduction</span></a> Hi I&#39;m Richard and I&#39;m looking for a new type of social media. Something akin to the blogosphere in 2004. I&#39;m an old-school tech blogger, started a site called ReadWriteWeb in 2003 and then chronicled the Web 2.0 era on it. </p><p>I&#39;m currently writing a book (<a href=\"https://mastodon.social/tags/nonfiction\" class=\"mention hashtag\" rel=\"tag\">#<span>nonfiction</span></a> <a href=\"https://mastodon.social/tags/techhistory\" class=\"mention hashtag\" rel=\"tag\">#<span>techhistory</span></a>); at least 500 words per day, usually very early in the morning.</p><p>I&#39;m a <a href=\"https://mastodon.social/tags/type1diabetic\" class=\"mention hashtag\" rel=\"tag\">#<span>type1diabetic</span></a> <a href=\"https://mastodon.social/tags/T1D\" class=\"mention hashtag\" rel=\"tag\">#<span>T1D</span></a> </p><p>My current interests:<br /><a href=\"https://mastodon.social/tags/webdev\" class=\"mention hashtag\" rel=\"tag\">#<span>webdev</span></a><br /><a href=\"https://mastodon.social/tags/fediverse\" class=\"mention hashtag\" rel=\"tag\">#<span>fediverse</span></a><br /><a href=\"https://mastodon.social/tags/AI\" class=\"mention hashtag\" rel=\"tag\">#<span>AI</span></a><br /><a href=\"https://mastodon.social/tags/InternetHistory\" class=\"mention hashtag\" rel=\"tag\">#<span>InternetHistory</span></a><br /><a href=\"https://mastodon.social/tags/11ty\" class=\"mention hashtag\" rel=\"tag\">#<span>11ty</span></a><br /><a href=\"https://mastodon.social/tags/electronicmusic\" class=\"mention hashtag\" rel=\"tag\">#<span>electronicmusic</span></a> <br /><a href=\"https://mastodon.social/tags/literature\" class=\"mention hashtag\" rel=\"tag\">#<span>literature</span></a></p>" }, "updated": "2024-03-16T08:40:32Z", "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/introduction", "name": "#introduction" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/nonfiction", "name": "#nonfiction" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/techhistory", "name": "#techhistory" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/type1diabetic", "name": "#type1diabetic" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/fediverse", "name": "#fediverse" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/webdev", "name": "#webdev" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/ai", "name": "#ai" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/t1d", "name": "#t1d" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/internethistory", "name": "#internethistory" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/11ty", "name": "#11ty" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/electronicmusic", "name": "#electronicmusic" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/literature", "name": "#literature" } ], "replies": { "id": "https://mastodon.social/users/ricmac/statuses/109341965706101660/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/ricmac/statuses/109341965706101660/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/ricmac/statuses/109341965706101660/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/ricmac/statuses/109341965706101660/likes", "type": "Collection", "totalItems": 74 }, "shares": { "id": "https://mastodon.social/users/ricmac/statuses/109341965706101660/shares", "type": "Collection", "totalItems": 38 } } ] }