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", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" }, "Hashtag": "as:Hashtag" } ], "id": "https://mathstodon.xyz/users/manlius/statuses/114065943450621677", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-02-25T18:29:30Z", "url": "https://mathstodon.xyz/@manlius/114065943450621677", "attributedTo": "https://mathstodon.xyz/users/manlius", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/manlius/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/manlius/statuses/114065943450621677", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2025-02-25:objectId=140310424:objectType=Conversation", "content": "<p>From leaf cutter ants and the human brain to the cosmic web, from Facebook to salmons and flocking birds: what connects them all?</p><p>They were the protagonists of my first lecture on <a href=\"https://mathstodon.xyz/tags/ComplexSystems\" class=\"mention hashtag\" rel=\"tag\">#<span>ComplexSystems</span></a> in my course on the physics of <a href=\"https://mathstodon.xyz/tags/ComplexNetworks\" class=\"mention hashtag\" rel=\"tag\">#<span>ComplexNetworks</span></a>!</p>", "contentMap": { "it": "<p>From leaf cutter ants and the human brain to the cosmic web, from Facebook to salmons and flocking birds: what connects them all?</p><p>They were the protagonists of my first lecture on <a href=\"https://mathstodon.xyz/tags/ComplexSystems\" class=\"mention hashtag\" rel=\"tag\">#<span>ComplexSystems</span></a> in my course on the physics of <a href=\"https://mathstodon.xyz/tags/ComplexNetworks\" class=\"mention hashtag\" rel=\"tag\">#<span>ComplexNetworks</span></a>!</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://media.mathstodon.xyz/media_attachments/files/114/065/942/914/768/043/original/5d0b07ed8f2d0e10.jpg", "name": null, "blurhash": "UIGRuNH?o|Xk2IP6xCw0M-=|NENaimrZngOY", "width": 1080, "height": 864 } ], "tag": [ { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/ComplexNetworks", "name": "#ComplexNetworks" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/complexsystems", "name": "#complexsystems" } ], "replies": { "id": "https://mathstodon.xyz/users/manlius/statuses/114065943450621677/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/manlius/statuses/114065943450621677/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/manlius/statuses/114065943450621677/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/manlius/statuses/114065943450621677/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://mathstodon.xyz/users/manlius/statuses/114065943450621677/shares", "type": "Collection", "totalItems": 1 } }