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", "Emoji": "toot:Emoji", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" } } ], "id": "https://mastodon.chaosfield.at/users/dequbed/statuses/114449441460623761", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-04T11:58:05Z", "url": "https://mastodon.chaosfield.at/@dequbed/114449441460623761", "attributedTo": "https://mastodon.chaosfield.at/users/dequbed", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.chaosfield.at/users/dequbed/followers" ], "sensitive": false, "atomUri": "https://mastodon.chaosfield.at/users/dequbed/statuses/114449441460623761", "inReplyToAtomUri": null, "conversation": "tag:mastodon.chaosfield.at,2025-05-04:objectId=5542753:objectType=Conversation", "content": "<p>Hello, I need your <a href=\"https://mastodon.chaosfield.at/tags/FollowerPower\" class=\"mention hashtag\" rel=\"tag\">#<span>FollowerPower</span></a> please:</p><p>What are your favourite blogs / online lectures / other freely accessible resources on the mathematics behind cryptography, especially in the areas of number theory, elliptic curves, and quantum computing/algorithms?</p><p>I have extremely privileged access to a wealth of knowledge that is to others behind a very steep paywall. I recognise that and I would like my lectures to also link to more readily accessible resources.</p><p>:boosts_appreciated:</p>", "contentMap": { "en": "<p>Hello, I need your <a href=\"https://mastodon.chaosfield.at/tags/FollowerPower\" class=\"mention hashtag\" rel=\"tag\">#<span>FollowerPower</span></a> please:</p><p>What are your favourite blogs / online lectures / other freely accessible resources on the mathematics behind cryptography, especially in the areas of number theory, elliptic curves, and quantum computing/algorithms?</p><p>I have extremely privileged access to a wealth of knowledge that is to others behind a very steep paywall. I recognise that and I would like my lectures to also link to more readily accessible resources.</p><p>:boosts_appreciated:</p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.chaosfield.at/tags/followerpower", "name": "#followerpower" }, { "id": "https://mastodon.chaosfield.at/emojis/129860", "type": "Emoji", "name": ":boosts_appreciated:", "updated": "2025-01-20T13:51:59Z", "icon": { "type": "Image", "mediaType": "image/png", "url": "https://mastodon.chaosfield.at/system/custom_emojis/images/000/129/860/original/8e91ad719407dc9b.png" } } ], "replies": { "id": "https://mastodon.chaosfield.at/users/dequbed/statuses/114449441460623761/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.chaosfield.at/users/dequbed/statuses/114449441460623761/replies?min_id=114449488858523142&page=true", "partOf": "https://mastodon.chaosfield.at/users/dequbed/statuses/114449441460623761/replies", "items": [ "https://mastodon.chaosfield.at/users/dequbed/statuses/114449445931213136", "https://mastodon.chaosfield.at/users/dequbed/statuses/114449463250089291", "https://mastodon.chaosfield.at/users/dequbed/statuses/114449488858523142" ] } }, "likes": { "id": "https://mastodon.chaosfield.at/users/dequbed/statuses/114449441460623761/likes", "type": "Collection", "totalItems": 65 }, "shares": { "id": "https://mastodon.chaosfield.at/users/dequbed/statuses/114449441460623761/shares", "type": "Collection", "totalItems": 207 } }