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.bot/users/apod/statuses/114601277799107137", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-31T07:32:04Z", "url": "https://mastodon.bot/@apod/114601277799107137", "attributedTo": "https://mastodon.bot/users/apod", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.bot/users/apod/followers" ], "sensitive": false, "atomUri": "https://mastodon.bot/users/apod/statuses/114601277799107137", "inReplyToAtomUri": null, "conversation": "tag:mastodon.bot,2025-05-31:objectId=441615:objectType=Conversation", "content": "<p>APOD from 2025-05-31</p><p>Afterimage Sunset</p><p>Captured in Sicily, this altered image of a sunset behind a bell tower creates an optical illusion. Stare at the sunspots for 30s, then look away to see an afterimage with natural colors—a yellow Sun against a blue sky.</p><p>HD image at <a href=\"https://apod.nasa.gov/apod/ap250531.html#space\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">apod.nasa.gov/apod/ap250531.ht</span><span class=\"invisible\">ml#space</span></a> <a href=\"https://mastodon.bot/tags/astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>astronomy</span></a> <a href=\"https://mastodon.bot/tags/planet\" class=\"mention hashtag\" rel=\"tag\">#<span>planet</span></a> <a href=\"https://mastodon.bot/tags/earth\" class=\"mention hashtag\" rel=\"tag\">#<span>earth</span></a></p>", "contentMap": { "en": "<p>APOD from 2025-05-31</p><p>Afterimage Sunset</p><p>Captured in Sicily, this altered image of a sunset behind a bell tower creates an optical illusion. Stare at the sunspots for 30s, then look away to see an afterimage with natural colors—a yellow Sun against a blue sky.</p><p>HD image at <a href=\"https://apod.nasa.gov/apod/ap250531.html#space\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">apod.nasa.gov/apod/ap250531.ht</span><span class=\"invisible\">ml#space</span></a> <a href=\"https://mastodon.bot/tags/astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>astronomy</span></a> <a href=\"https://mastodon.bot/tags/planet\" class=\"mention hashtag\" rel=\"tag\">#<span>planet</span></a> <a href=\"https://mastodon.bot/tags/earth\" class=\"mention hashtag\" rel=\"tag\">#<span>earth</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.bot/media_attachments/files/114/601/238/757/203/856/original/8e5df89c49ea78a8.jpg", "name": "Afterimage Sunset", "blurhash": "U@IcE|o2jXo0|co1a}jts8WoW?fRN^SMa{a|", "width": 1024, "height": 797 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.bot/tags/astronomy", "name": "#astronomy" }, { "type": "Hashtag", "href": "https://mastodon.bot/tags/planet", "name": "#planet" }, { "type": "Hashtag", "href": "https://mastodon.bot/tags/earth", "name": "#earth" } ], "replies": { "id": "https://mastodon.bot/users/apod/statuses/114601277799107137/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.bot/users/apod/statuses/114601277799107137/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.bot/users/apod/statuses/114601277799107137/replies", "items": [] } } }