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", "Hashtag": "as:Hashtag" } ], "id": "https://mastodon.social/users/4Science/statuses/114541315847022006", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-20T17:22:57Z", "url": "https://mastodon.social/@4Science/114541315847022006", "attributedTo": "https://mastodon.social/users/4Science", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/4Science/followers", "https://mastodon.social/users/OpenAlex" ], "sensitive": false, "atomUri": "https://mastodon.social/users/4Science/statuses/114541315847022006", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-05-20:objectId=1002078800:objectType=Conversation", "content": "<p>🚨 <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@OpenAlex\" class=\"u-url mention\">@<span>OpenAlex</span></a></span> now available on DSpace!</p><p><a href=\"https://mastodon.social/tags/partnership\" class=\"mention hashtag\" rel=\"tag\">#<span>partnership</span></a> with the University of Cambridge, 4Science has enhanced <a href=\"https://mastodon.social/tags/interoperability\" class=\"mention hashtag\" rel=\"tag\">#<span>interoperability</span></a> in DSpace for a richer <a href=\"https://mastodon.social/tags/repository\" class=\"mention hashtag\" rel=\"tag\">#<span>repository</span></a> &amp; better data quality: <a href=\"https://mastodon.social/tags/OpenAlex\" class=\"mention hashtag\" rel=\"tag\">#<span>OpenAlex</span></a> is an <a href=\"https://mastodon.social/tags/innovative\" class=\"mention hashtag\" rel=\"tag\">#<span>innovative</span></a> platform that offers free access to millions of scientific publications, researchers, institutions, and academic sources.</p><p>The <a href=\"https://mastodon.social/tags/integration\" class=\"mention hashtag\" rel=\"tag\">#<span>integration</span></a> is available out-of-the-box starting from version 9.0 released in May 2025. </p><p>More:4science.com/openalex-now-available-on-dspace/</p>", "contentMap": { "en": "<p>🚨 <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@OpenAlex\" class=\"u-url mention\">@<span>OpenAlex</span></a></span> now available on DSpace!</p><p><a href=\"https://mastodon.social/tags/partnership\" class=\"mention hashtag\" rel=\"tag\">#<span>partnership</span></a> with the University of Cambridge, 4Science has enhanced <a href=\"https://mastodon.social/tags/interoperability\" class=\"mention hashtag\" rel=\"tag\">#<span>interoperability</span></a> in DSpace for a richer <a href=\"https://mastodon.social/tags/repository\" class=\"mention hashtag\" rel=\"tag\">#<span>repository</span></a> &amp; better data quality: <a href=\"https://mastodon.social/tags/OpenAlex\" class=\"mention hashtag\" rel=\"tag\">#<span>OpenAlex</span></a> is an <a href=\"https://mastodon.social/tags/innovative\" class=\"mention hashtag\" rel=\"tag\">#<span>innovative</span></a> platform that offers free access to millions of scientific publications, researchers, institutions, and academic sources.</p><p>The <a href=\"https://mastodon.social/tags/integration\" class=\"mention hashtag\" rel=\"tag\">#<span>integration</span></a> is available out-of-the-box starting from version 9.0 released in May 2025. </p><p>More:4science.com/openalex-now-available-on-dspace/</p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://mastodon.social/users/OpenAlex", "name": "@OpenAlex" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/partnership", "name": "#partnership" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/interoperability", "name": "#interoperability" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/repository", "name": "#repository" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/openalex", "name": "#openalex" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/innovative", "name": "#innovative" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/integration", "name": "#integration" } ], "replies": { "id": "https://mastodon.social/users/4Science/statuses/114541315847022006/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/4Science/statuses/114541315847022006/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/4Science/statuses/114541315847022006/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/4Science/statuses/114541315847022006/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://mastodon.social/users/4Science/statuses/114541315847022006/shares", "type": "Collection", "totalItems": 3 } }