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" } ], "id": "https://fedi.simonwillison.net/users/simon/statuses/109320746670919463/replies", "type": "Collection", "first": { "id": "https://fedi.simonwillison.net/users/simon/statuses/109320746670919463/replies?page=true", "type": "CollectionPage", "next": "https://fedi.simonwillison.net/users/simon/statuses/109320746670919463/replies?only_other_accounts=true&page=true", "partOf": "https://fedi.simonwillison.net/users/simon/statuses/109320746670919463/replies", "items": [ { "id": "https://fedi.simonwillison.net/users/simon/statuses/109320823833301377", "type": "Note", "summary": "mastodon meta", "inReplyTo": "https://fedi.simonwillison.net/users/simon/statuses/109320746670919463", "published": "2022-11-10T18:03:11Z", "url": "https://fedi.simonwillison.net/@simon/109320823833301377", "attributedTo": "https://fedi.simonwillison.net/users/simon", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://fedi.simonwillison.net/users/simon/followers" ], "sensitive": true, "atomUri": "https://fedi.simonwillison.net/users/simon/statuses/109320823833301377", "inReplyToAtomUri": "https://fedi.simonwillison.net/users/simon/statuses/109320746670919463", "conversation": "tag:simonwillison.net,2022-11-10:objectId=51723:objectType=Conversation", "content": "<p>I&#39;m interested in learning about existing engineering and research that has gone into improving the efficiency of HTTP deliveries made by Mastodon - my initial intuition is that making each request as a separate Ruby task running in Sidekiq could be sped up a bunch through concurrent IO techniques, but that&#39;s just an uninformed hunch at the moment</p>", "contentMap": { "en": "<p>I&#39;m interested in learning about existing engineering and research that has gone into improving the efficiency of HTTP deliveries made by Mastodon - my initial intuition is that making each request as a separate Ruby task running in Sidekiq could be sped up a bunch through concurrent IO techniques, but that&#39;s just an uninformed hunch at the moment</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://fedi.simonwillison.net/users/simon/statuses/109320823833301377/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://fedi.simonwillison.net/users/simon/statuses/109320823833301377/replies?only_other_accounts=true&page=true", "partOf": "https://fedi.simonwillison.net/users/simon/statuses/109320823833301377/replies", "items": [] } }, "likes": { "id": "https://fedi.simonwillison.net/users/simon/statuses/109320823833301377/likes", "type": "Collection", "totalItems": 18 }, "shares": { "id": "https://fedi.simonwillison.net/users/simon/statuses/109320823833301377/shares", "type": "Collection", "totalItems": 6 } } ] } }