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", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" } } ], "id": "https://chaos.social/users/delta/collections/featured", "type": "OrderedCollection", "totalItems": 3, "orderedItems": [ { "id": "https://chaos.social/users/delta/statuses/114721310947729459", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-21T12:18:04Z", "url": "https://chaos.social/@delta/114721310947729459", "attributedTo": "https://chaos.social/users/delta", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://chaos.social/users/delta/followers" ], "sensitive": false, "atomUri": "https://chaos.social/users/delta/statuses/114721310947729459", "inReplyToAtomUri": null, "conversation": "tag:chaos.social,2025-06-21:objectId=280964551:objectType=Conversation", "content": "<p>Some people in <a href=\"https://chaos.social/tags/Iran\" class=\"mention hashtag\" rel=\"tag\">#<span>Iran</span></a> successfully use delta with national email providers when outside Internet is cut. </p><p><a href=\"https://chaos.social/tags/deltachat\" class=\"mention hashtag\" rel=\"tag\">#<span>deltachat</span></a> designs are <a href=\"https://chaos.social/tags/OfflineFirst\" class=\"mention hashtag\" rel=\"tag\">#<span>OfflineFirst</span></a> using delay tolerant protocols. Messages are queued when a path is blocked. email servers are made for this and run at planetary scale.<br />Messages crossing the border may arrive three days later but they arrive. </p><p>Peoples can stay in private touch across time and space, to the extent possible in current breakdown times. Which is what delta is about.</p>", "contentMap": { "en": "<p>Some people in <a href=\"https://chaos.social/tags/Iran\" class=\"mention hashtag\" rel=\"tag\">#<span>Iran</span></a> successfully use delta with national email providers when outside Internet is cut. </p><p><a href=\"https://chaos.social/tags/deltachat\" class=\"mention hashtag\" rel=\"tag\">#<span>deltachat</span></a> designs are <a href=\"https://chaos.social/tags/OfflineFirst\" class=\"mention hashtag\" rel=\"tag\">#<span>OfflineFirst</span></a> using delay tolerant protocols. Messages are queued when a path is blocked. email servers are made for this and run at planetary scale.<br />Messages crossing the border may arrive three days later but they arrive. </p><p>Peoples can stay in private touch across time and space, to the extent possible in current breakdown times. Which is what delta is about.</p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://chaos.social/tags/iran", "name": "#iran" }, { "type": "Hashtag", "href": "https://chaos.social/tags/deltachat", "name": "#deltachat" }, { "type": "Hashtag", "href": "https://chaos.social/tags/offlinefirst", "name": "#offlinefirst" } ], "replies": { "id": "https://chaos.social/users/delta/statuses/114721310947729459/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://chaos.social/users/delta/statuses/114721310947729459/replies?only_other_accounts=true&page=true", "partOf": "https://chaos.social/users/delta/statuses/114721310947729459/replies", "items": [] } }, "likes": { "id": "https://chaos.social/users/delta/statuses/114721310947729459/likes", "type": "Collection", "totalItems": 221 }, "shares": { "id": "https://chaos.social/users/delta/statuses/114721310947729459/shares", "type": "Collection", "totalItems": 235 } }, { "id": "https://chaos.social/users/delta/statuses/114710708299242142", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-19T15:21:41Z", "url": "https://chaos.social/@delta/114710708299242142", "attributedTo": "https://chaos.social/users/delta", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://chaos.social/users/delta/followers" ], "sensitive": false, "atomUri": "https://chaos.social/users/delta/statuses/114710708299242142", "inReplyToAtomUri": null, "conversation": "tag:chaos.social,2025-06-19:objectId=280448397:objectType=Conversation", "content": "<p>We are basically doing what <a href=\"https://chaos.social/tags/signal\" class=\"mention hashtag\" rel=\"tag\">#<span>signal</span></a> and in particular moxie refused to do or declares impossible: federation. </p><p>Both <a href=\"https://chaos.social/tags/email\" class=\"mention hashtag\" rel=\"tag\">#<span>email</span></a> and <a href=\"https://chaos.social/tags/activitypub\" class=\"mention hashtag\" rel=\"tag\">#<span>activitypub</span></a> ecosystems are all about federation. </p><p>However, <a href=\"https://chaos.social/tags/deltachat\" class=\"mention hashtag\" rel=\"tag\">#<span>deltachat</span></a> is vertically centralized in that all UIs use the same <a href=\"https://chaos.social/tags/rust\" class=\"mention hashtag\" rel=\"tag\">#<span>rust</span></a> core which implements all networking, encryption, chat/group/message logic in a single centralized place. The now 40+ <a href=\"https://chaos.social/tags/chatmail\" class=\"mention hashtag\" rel=\"tag\">#<span>chatmail</span></a> mail relay network is driven from centralized code. </p><p>At each level replication and federation is built in.</p>", "contentMap": { "en": "<p>We are basically doing what <a href=\"https://chaos.social/tags/signal\" class=\"mention hashtag\" rel=\"tag\">#<span>signal</span></a> and in particular moxie refused to do or declares impossible: federation. </p><p>Both <a href=\"https://chaos.social/tags/email\" class=\"mention hashtag\" rel=\"tag\">#<span>email</span></a> and <a href=\"https://chaos.social/tags/activitypub\" class=\"mention hashtag\" rel=\"tag\">#<span>activitypub</span></a> ecosystems are all about federation. </p><p>However, <a href=\"https://chaos.social/tags/deltachat\" class=\"mention hashtag\" rel=\"tag\">#<span>deltachat</span></a> is vertically centralized in that all UIs use the same <a href=\"https://chaos.social/tags/rust\" class=\"mention hashtag\" rel=\"tag\">#<span>rust</span></a> core which implements all networking, encryption, chat/group/message logic in a single centralized place. The now 40+ <a href=\"https://chaos.social/tags/chatmail\" class=\"mention hashtag\" rel=\"tag\">#<span>chatmail</span></a> mail relay network is driven from centralized code. </p><p>At each level replication and federation is built in.</p>" }, "updated": "2025-06-19T19:15:34Z", "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://chaos.social/tags/signal", "name": "#signal" }, { "type": "Hashtag", "href": "https://chaos.social/tags/email", "name": "#email" }, { "type": "Hashtag", "href": "https://chaos.social/tags/activitypub", "name": "#activitypub" }, { "type": "Hashtag", "href": "https://chaos.social/tags/deltachat", "name": "#deltachat" }, { "type": "Hashtag", "href": "https://chaos.social/tags/rust", "name": "#rust" }, { "type": "Hashtag", "href": "https://chaos.social/tags/chatmail", "name": "#chatmail" } ], "replies": { "id": "https://chaos.social/users/delta/statuses/114710708299242142/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://chaos.social/users/delta/statuses/114710708299242142/replies?only_other_accounts=true&page=true", "partOf": "https://chaos.social/users/delta/statuses/114710708299242142/replies", "items": [] } }, "likes": { "id": "https://chaos.social/users/delta/statuses/114710708299242142/likes", "type": "Collection", "totalItems": 71 }, "shares": { "id": "https://chaos.social/users/delta/statuses/114710708299242142/shares", "type": "Collection", "totalItems": 46 } }, { "id": "https://chaos.social/users/delta/statuses/114517181096683376", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-16T11:05:10Z", "url": "https://chaos.social/@delta/114517181096683376", "attributedTo": "https://chaos.social/users/delta", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://chaos.social/users/delta/followers", "https://mastodon.social/users/n0iroh" ], "sensitive": false, "atomUri": "https://chaos.social/users/delta/statuses/114517181096683376", "inReplyToAtomUri": null, "conversation": "tag:chaos.social,2025-05-16:objectId=270918897:objectType=Conversation", "content": "<p>It had to happen: in-chat multi-player <a href=\"https://chaos.social/tags/Quake\" class=\"mention hashtag\" rel=\"tag\">#<span>Quake</span></a> III Arena <a href=\"https://chaos.social/tags/webxdc\" class=\"mention hashtag\" rel=\"tag\">#<span>webxdc</span></a> app, running over <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@n0iroh\" class=\"u-url mention\">@<span>n0iroh</span></a></span> and using the fine work of <a href=\"https://ioquake3.org/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">ioquake3.org/</span><span class=\"invisible\"></span></a> folks. Quake3 app is 1.2MB but you need to download once a game file of ~50 MB. It&#39;s only one level. </p><p>Realtime-P2P-networked multiplayer gaming arranged through securely end-to-end encrypted email, from a group chat! </p><p>Both Quake3&#39;s in-game chat as well as game play messages have forward-secrecy. What a weird future, eh? :)</p><p><a href=\"https://webxdc.org/apps/#wofwca-quake3\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">webxdc.org/apps/#wofwca-quake3</span><span class=\"invisible\"></span></a></p>", "contentMap": { "en": "<p>It had to happen: in-chat multi-player <a href=\"https://chaos.social/tags/Quake\" class=\"mention hashtag\" rel=\"tag\">#<span>Quake</span></a> III Arena <a href=\"https://chaos.social/tags/webxdc\" class=\"mention hashtag\" rel=\"tag\">#<span>webxdc</span></a> app, running over <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@n0iroh\" class=\"u-url mention\">@<span>n0iroh</span></a></span> and using the fine work of <a href=\"https://ioquake3.org/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">ioquake3.org/</span><span class=\"invisible\"></span></a> folks. Quake3 app is 1.2MB but you need to download once a game file of ~50 MB. It&#39;s only one level. </p><p>Realtime-P2P-networked multiplayer gaming arranged through securely end-to-end encrypted email, from a group chat! </p><p>Both Quake3&#39;s in-game chat as well as game play messages have forward-secrecy. What a weird future, eh? :)</p><p><a href=\"https://webxdc.org/apps/#wofwca-quake3\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">webxdc.org/apps/#wofwca-quake3</span><span class=\"invisible\"></span></a></p>" }, "updated": "2025-05-16T15:57:35Z", "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://assets.chaos.social/media_attachments/files/114/516/947/041/411/346/original/c7c820e174fa6f96.png", "name": "screenshot of Quake app at https://webxdc.org/apps/#wofwca-quake3 ", "blurhash": "UCSY{s01IVs;-.-o%2xub0M|M|j]t7WBs.t6", "focalPoint": [ 0, 0 ], "width": 762, "height": 378 }, { "type": "Document", "mediaType": "image/png", "url": "https://assets.chaos.social/media_attachments/files/114/518/321/747/301/450/original/d9c7512e4f3bd564.png", "name": "A screenshot of a Delta Chat group chat where a quake3 webxdc app is posted, showing the Quake logo, and there is a \"start button\". Wofwca (the author of the quake webxdc app) immediately is ready and joins the game. A short while later there are three people from the chat playing. ", "blurhash": "UEQ0Q:Qs?Hou.hMfRRtQ.QVvIVWAI9WA%Mog", "focalPoint": [ 0, 0 ], "width": 995, "height": 1118 }, { "type": "Document", "mediaType": "image/png", "url": "https://assets.chaos.social/media_attachments/files/114/517/125/376/048/629/original/25139a35ed405155.png", "name": "screenshot of an in-game quake situation where the player just \"fragged Holga, 1st place with 16\" (kills) \n", "blurhash": "U66kChxaM{NGNGt7RjRjMxNGogoz0LRk%Mxa", "focalPoint": [ 0, 0 ], "width": 1920, "height": 1080 }, { "type": "Document", "mediaType": "image/png", "url": "https://assets.chaos.social/media_attachments/files/114/517/131/354/359/947/original/531b293328a15f10.png", "name": "Screenshot of in-game quake with a player looking down on a situation where a rocket launcher just exploded. ", "blurhash": "U47^iE~BNGELE2-o%1-pE1E2IpEL57ELjZs.", "focalPoint": [ 0, 0 ], "width": 1920, "height": 1080 } ], "tag": [ { "type": "Mention", "href": "https://mastodon.social/users/n0iroh", "name": "@n0iroh@mastodon.social" }, { "type": "Hashtag", "href": "https://chaos.social/tags/Webxdc", "name": "#Webxdc" }, { "type": "Hashtag", "href": "https://chaos.social/tags/quake", "name": "#quake" } ], "replies": { "id": "https://chaos.social/users/delta/statuses/114517181096683376/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://chaos.social/users/delta/statuses/114517181096683376/replies?only_other_accounts=true&page=true", "partOf": "https://chaos.social/users/delta/statuses/114517181096683376/replies", "items": [] } }, "likes": { "id": "https://chaos.social/users/delta/statuses/114517181096683376/likes", "type": "Collection", "totalItems": 121 }, "shares": { "id": "https://chaos.social/users/delta/statuses/114517181096683376/shares", "type": "Collection", "totalItems": 110 } } ] }