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.social/users/OSTrails/statuses/114592071455239157", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-29T16:30:46Z", "url": "https://mastodon.social/@OSTrails/114592071455239157", "attributedTo": "https://mastodon.social/users/OSTrails", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/OSTrails/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/OSTrails/statuses/114592071455239157", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-05-29:objectId=1009577468:objectType=Conversation", "content": "<p><a href=\"https://mastodon.social/tags/OSTrails\" class=\"mention hashtag\" rel=\"tag\">#<span>OSTrails</span></a> is joining <a href=\"https://mastodon.social/tags/EGI2025\" class=\"mention hashtag\" rel=\"tag\">#<span>EGI2025</span></a> in Santander!<br /> <br />We’re presenting our work on empowering FAIR &amp; reproducible science across <a href=\"https://mastodon.social/tags/EOSC\" class=\"mention hashtag\" rel=\"tag\">#<span>EOSC</span></a> through tools that help researchers plan, track, and assess their work in real-time. </p><p>Don&#39;t miss our poster on Advancing FAIR and Reproducible Science in Big Data Environments through EOSC Science Clusters.<br /> <br />πŸ—“οΈ June 2–6</p><p>πŸ”— More: <a href=\"https://ostrails.eu/component/eventbooking/conference/egi2025\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">ostrails.eu/component/eventboo</span><span class=\"invisible\">king/conference/egi2025</span></a><br /> <br /><a href=\"https://mastodon.social/tags/FAIRdata\" class=\"mention hashtag\" rel=\"tag\">#<span>FAIRdata</span></a> <a href=\"https://mastodon.social/tags/OpenScience\" class=\"mention hashtag\" rel=\"tag\">#<span>OpenScience</span></a> <a href=\"https://mastodon.social/tags/ResearchInfrastructures\" class=\"mention hashtag\" rel=\"tag\">#<span>ResearchInfrastructures</span></a> <a href=\"https://mastodon.social/tags/BigData\" class=\"mention hashtag\" rel=\"tag\">#<span>BigData</span></a> <a href=\"https://mastodon.social/tags/EGI2025\" class=\"mention hashtag\" rel=\"tag\">#<span>EGI2025</span></a></p>", "contentMap": { "en": "<p><a href=\"https://mastodon.social/tags/OSTrails\" class=\"mention hashtag\" rel=\"tag\">#<span>OSTrails</span></a> is joining <a href=\"https://mastodon.social/tags/EGI2025\" class=\"mention hashtag\" rel=\"tag\">#<span>EGI2025</span></a> in Santander!<br /> <br />We’re presenting our work on empowering FAIR &amp; reproducible science across <a href=\"https://mastodon.social/tags/EOSC\" class=\"mention hashtag\" rel=\"tag\">#<span>EOSC</span></a> through tools that help researchers plan, track, and assess their work in real-time. </p><p>Don&#39;t miss our poster on Advancing FAIR and Reproducible Science in Big Data Environments through EOSC Science Clusters.<br /> <br />πŸ—“οΈ June 2–6</p><p>πŸ”— More: <a href=\"https://ostrails.eu/component/eventbooking/conference/egi2025\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">ostrails.eu/component/eventboo</span><span class=\"invisible\">king/conference/egi2025</span></a><br /> <br /><a href=\"https://mastodon.social/tags/FAIRdata\" class=\"mention hashtag\" rel=\"tag\">#<span>FAIRdata</span></a> <a href=\"https://mastodon.social/tags/OpenScience\" class=\"mention hashtag\" rel=\"tag\">#<span>OpenScience</span></a> <a href=\"https://mastodon.social/tags/ResearchInfrastructures\" class=\"mention hashtag\" rel=\"tag\">#<span>ResearchInfrastructures</span></a> <a href=\"https://mastodon.social/tags/BigData\" class=\"mention hashtag\" rel=\"tag\">#<span>BigData</span></a> <a href=\"https://mastodon.social/tags/EGI2025\" class=\"mention hashtag\" rel=\"tag\">#<span>EGI2025</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/114/592/071/213/220/741/original/1a536fe50d2b4e1f.png", "name": null, "blurhash": "UHECzf8y5HJyctVtn,wG0?s~IV=w=|n1ESKO", "width": 895, "height": 475 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/ostrails", "name": "#ostrails" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/egi2025", "name": "#egi2025" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/eosc", "name": "#eosc" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/fairdata", "name": "#fairdata" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/openscience", "name": "#openscience" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/researchinfrastructures", "name": "#researchinfrastructures" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/bigdata", "name": "#bigdata" } ], "replies": { "id": "https://mastodon.social/users/OSTrails/statuses/114592071455239157/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/OSTrails/statuses/114592071455239157/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/OSTrails/statuses/114592071455239157/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/OSTrails/statuses/114592071455239157/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mastodon.social/users/OSTrails/statuses/114592071455239157/shares", "type": "Collection", "totalItems": 0 } }