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", "Hashtag": "as:Hashtag" } ], "id": "https://mastodon.social/users/johniac/statuses/114308574263378289", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-04-09T14:53:42Z", "url": "https://mastodon.social/@johniac/114308574263378289", "attributedTo": "https://mastodon.social/users/johniac", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/johniac/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/johniac/statuses/114308574263378289", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-04-09:objectId=968010860:objectType=Conversation", "content": "<p>SciTech Chronicles. . . . . . . . .April 9th, 2025</p><p><a href=\"https://bit.ly/stc040925\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">bit.ly/stc040925</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mastodon.social/tags/virus\" class=\"mention hashtag\" rel=\"tag\">#<span>virus</span></a> <a href=\"https://mastodon.social/tags/vector\" class=\"mention hashtag\" rel=\"tag\">#<span>vector</span></a>-based <a href=\"https://mastodon.social/tags/T\" class=\"mention hashtag\" rel=\"tag\">#<span>T</span></a>-cell <a href=\"https://mastodon.social/tags/respiratory\" class=\"mention hashtag\" rel=\"tag\">#<span>respiratory</span></a> <a href=\"https://mastodon.social/tags/moisture\" class=\"mention hashtag\" rel=\"tag\">#<span>moisture</span></a> <a href=\"https://mastodon.social/tags/temperature\" class=\"mention hashtag\" rel=\"tag\">#<span>temperature</span></a> <a href=\"https://mastodon.social/tags/instability\" class=\"mention hashtag\" rel=\"tag\">#<span>instability</span></a> <a href=\"https://mastodon.social/tags/latent\" class=\"mention hashtag\" rel=\"tag\">#<span>latent</span></a>-heat <a href=\"https://mastodon.social/tags/transient\" class=\"mention hashtag\" rel=\"tag\">#<span>transient</span></a> <a href=\"https://mastodon.social/tags/temporal\" class=\"mention hashtag\" rel=\"tag\">#<span>temporal</span></a> <a href=\"https://mastodon.social/tags/singularities\" class=\"mention hashtag\" rel=\"tag\">#<span>singularities</span></a> <a href=\"https://mastodon.social/tags/acceleration\" class=\"mention hashtag\" rel=\"tag\">#<span>acceleration</span></a> <a href=\"https://mastodon.social/tags/fuel\" class=\"mention hashtag\" rel=\"tag\">#<span>fuel</span></a>-cell <a href=\"https://mastodon.social/tags/PEM\" class=\"mention hashtag\" rel=\"tag\">#<span>PEM</span></a> <a href=\"https://mastodon.social/tags/fincantieri\" class=\"mention hashtag\" rel=\"tag\">#<span>fincantieri</span></a> <a href=\"https://mastodon.social/tags/decarbonization\" class=\"mention hashtag\" rel=\"tag\">#<span>decarbonization</span></a> <a href=\"https://mastodon.social/tags/1420MHz\" class=\"mention hashtag\" rel=\"tag\">#<span>1420MHz</span></a> <a href=\"https://mastodon.social/tags/redshift\" class=\"mention hashtag\" rel=\"tag\">#<span>redshift</span></a> #88-108MHz <a href=\"https://mastodon.social/tags/CubeSats\" class=\"mention hashtag\" rel=\"tag\">#<span>CubeSats</span></a></p>", "contentMap": { "en": "<p>SciTech Chronicles. . . . . . . . .April 9th, 2025</p><p><a href=\"https://bit.ly/stc040925\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">bit.ly/stc040925</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mastodon.social/tags/virus\" class=\"mention hashtag\" rel=\"tag\">#<span>virus</span></a> <a href=\"https://mastodon.social/tags/vector\" class=\"mention hashtag\" rel=\"tag\">#<span>vector</span></a>-based <a href=\"https://mastodon.social/tags/T\" class=\"mention hashtag\" rel=\"tag\">#<span>T</span></a>-cell <a href=\"https://mastodon.social/tags/respiratory\" class=\"mention hashtag\" rel=\"tag\">#<span>respiratory</span></a> <a href=\"https://mastodon.social/tags/moisture\" class=\"mention hashtag\" rel=\"tag\">#<span>moisture</span></a> <a href=\"https://mastodon.social/tags/temperature\" class=\"mention hashtag\" rel=\"tag\">#<span>temperature</span></a> <a href=\"https://mastodon.social/tags/instability\" class=\"mention hashtag\" rel=\"tag\">#<span>instability</span></a> <a href=\"https://mastodon.social/tags/latent\" class=\"mention hashtag\" rel=\"tag\">#<span>latent</span></a>-heat <a href=\"https://mastodon.social/tags/transient\" class=\"mention hashtag\" rel=\"tag\">#<span>transient</span></a> <a href=\"https://mastodon.social/tags/temporal\" class=\"mention hashtag\" rel=\"tag\">#<span>temporal</span></a> <a href=\"https://mastodon.social/tags/singularities\" class=\"mention hashtag\" rel=\"tag\">#<span>singularities</span></a> <a href=\"https://mastodon.social/tags/acceleration\" class=\"mention hashtag\" rel=\"tag\">#<span>acceleration</span></a> <a href=\"https://mastodon.social/tags/fuel\" class=\"mention hashtag\" rel=\"tag\">#<span>fuel</span></a>-cell <a href=\"https://mastodon.social/tags/PEM\" class=\"mention hashtag\" rel=\"tag\">#<span>PEM</span></a> <a href=\"https://mastodon.social/tags/fincantieri\" class=\"mention hashtag\" rel=\"tag\">#<span>fincantieri</span></a> <a href=\"https://mastodon.social/tags/decarbonization\" class=\"mention hashtag\" rel=\"tag\">#<span>decarbonization</span></a> <a href=\"https://mastodon.social/tags/1420MHz\" class=\"mention hashtag\" rel=\"tag\">#<span>1420MHz</span></a> <a href=\"https://mastodon.social/tags/redshift\" class=\"mention hashtag\" rel=\"tag\">#<span>redshift</span></a> #88-108MHz <a href=\"https://mastodon.social/tags/CubeSats\" class=\"mention hashtag\" rel=\"tag\">#<span>CubeSats</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/virus", "name": "#virus" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/vector", "name": "#vector" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/t", "name": "#t" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/respiratory", "name": "#respiratory" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/moisture", "name": "#moisture" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/temperature", "name": "#temperature" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/instability", "name": "#instability" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/Latent", "name": "#Latent" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/transient", "name": "#transient" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/temporal", "name": "#temporal" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/singularities", "name": "#singularities" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/acceleration", "name": "#acceleration" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/fuel", "name": "#fuel" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/pem", "name": "#pem" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/fincantieri", "name": "#fincantieri" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/decarbonization", "name": "#decarbonization" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/1420mhz", "name": "#1420mhz" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/redshift", "name": "#redshift" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/cubesats", "name": "#cubesats" } ], "replies": { "id": "https://mastodon.social/users/johniac/statuses/114308574263378289/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/johniac/statuses/114308574263378289/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/johniac/statuses/114308574263378289/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/johniac/statuses/114308574263378289/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mastodon.social/users/johniac/statuses/114308574263378289/shares", "type": "Collection", "totalItems": 0 } }