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", "litepub": "http://litepub.social/ns#", "directMessage": "litepub:directMessage" } ], "id": "https://neuromatch.social/users/jonny/statuses/114649966314588082", "type": "Note", "summary": null, "inReplyTo": "https://community.nodebb.org/post/104809", "published": "2025-06-08T21:54:12Z", "url": "https://neuromatch.social/@jonny/114649966314588082", "attributedTo": "https://neuromatch.social/users/jonny", "to": [ "https://neuromatch.social/users/jonny/followers" ], "cc": [ "https://www.w3.org/ns/activitystreams#Public", "https://community.nodebb.org/uid/2" ], "sensitive": false, "atomUri": "https://neuromatch.social/users/jonny/statuses/114649966314588082", "inReplyToAtomUri": "https://community.nodebb.org/post/104809", "conversation": "tag:neuromatch.social,2025-06-08:objectId=29387442:objectType=Conversation", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://community.nodebb.org/user/julian\" class=\"u-url mention\" rel=\"nofollow noopener\" target=\"_blank\">@<span>julian</span></a></span></p><blockquote><p>N.B. I am not certain whether the service would crawl up the inReplyTo chain first, before expanding downwards, or whether context is set in intermediate and leaf nodes that point to the root-level object.</p></blockquote><p>Current impl starts at the expanded post and goes down - one can start a crawl at any point in a tree. If one starts at a lower point in the tree and then triggers a crawl higher up in the tree, lower part only gets crawled once within a configurable cooldown period to avoid double crawling.</p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://community.nodebb.org/user/julian\" class=\"u-url mention\" rel=\"nofollow noopener\" target=\"_blank\">@<span>julian</span></a></span></p><blockquote><p>N.B. I am not certain whether the service would crawl up the inReplyTo chain first, before expanding downwards, or whether context is set in intermediate and leaf nodes that point to the root-level object.</p></blockquote><p>Current impl starts at the expanded post and goes down - one can start a crawl at any point in a tree. If one starts at a lower point in the tree and then triggers a crawl higher up in the tree, lower part only gets crawled once within a configurable cooldown period to avoid double crawling.</p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://community.nodebb.org/uid/2", "name": "@julian@community.nodebb.org" } ], "replies": { "id": "https://neuromatch.social/users/jonny/statuses/114649966314588082/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://neuromatch.social/users/jonny/statuses/114649966314588082/replies?only_other_accounts=true&page=true", "partOf": "https://neuromatch.social/users/jonny/statuses/114649966314588082/replies", "items": [] } }, "likes": { "id": "https://neuromatch.social/users/jonny/statuses/114649966314588082/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://neuromatch.social/users/jonny/statuses/114649966314588082/shares", "type": "Collection", "totalItems": 0 } }