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://masto.ai/users/lastquake/statuses/114610218757965939/replies", "type": "Collection", "first": { "id": "https://masto.ai/users/lastquake/statuses/114610218757965939/replies?page=true", "type": "CollectionPage", "next": "https://masto.ai/users/lastquake/statuses/114610218757965939/replies?only_other_accounts=true&page=true", "partOf": "https://masto.ai/users/lastquake/statuses/114610218757965939/replies", "items": [ { "id": "https://masto.ai/users/lastquake/statuses/114610225887973170", "type": "Note", "summary": null, "inReplyTo": "https://masto.ai/users/lastquake/statuses/114610218757965939", "published": "2025-06-01T21:27:41Z", "url": "https://masto.ai/@lastquake/114610225887973170", "attributedTo": "https://masto.ai/users/lastquake", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://masto.ai/users/lastquake/followers" ], "sensitive": false, "atomUri": "https://masto.ai/users/lastquake/statuses/114610225887973170", "inReplyToAtomUri": "https://masto.ai/users/lastquake/statuses/114610218757965939", "conversation": "tag:masto.ai,2025-06-01:objectId=267624666:objectType=Conversation", "content": "<p>Eyewitnesses reported shaking in <a href=\"https://masto.ai/tags/Montenegro\" class=\"mention hashtag\" rel=\"tag\">#<span>Montenegro</span></a> 2 min ago (local time 23:25:12)⚠<br />At present, we have no seismic data confirming this crowdsourced detection.❗<br /> More info soon!</p>", "contentMap": { "en": "<p>Eyewitnesses reported shaking in <a href=\"https://masto.ai/tags/Montenegro\" class=\"mention hashtag\" rel=\"tag\">#<span>Montenegro</span></a> 2 min ago (local time 23:25:12)⚠<br />At present, we have no seismic data confirming this crowdsourced detection.❗<br /> More info soon!</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://s3.masto.ai/media_attachments/files/114/610/225/741/810/136/original/daf3e922e02177dc.png", "name": null, "blurhash": "UfL5EuF#r=oIq?nNR*t7-WrpoJbbJCbdfkWB", "width": 534, "height": 606 } ], "tag": [ { "type": "Hashtag", "href": "https://masto.ai/tags/montenegro", "name": "#montenegro" } ], "replies": { "id": "https://masto.ai/users/lastquake/statuses/114610225887973170/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://masto.ai/users/lastquake/statuses/114610225887973170/replies?min_id=114610277889441782&page=true", "partOf": "https://masto.ai/users/lastquake/statuses/114610225887973170/replies", "items": [ "https://masto.ai/users/lastquake/statuses/114610277889441782" ] } }, "likes": { "id": "https://masto.ai/users/lastquake/statuses/114610225887973170/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://masto.ai/users/lastquake/statuses/114610225887973170/shares", "type": "Collection", "totalItems": 0 } } ] } }