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", "https://w3id.org/security/v1", { "mostr": "http://mostr.pub/ns#", "Zap": "mostr:Zap", "xsd": "http://www.w3.org/2001/XMLSchema#", "fep": "https://w3id.org/fep/", "proxyOf": { "@id": "fep:fffd/proxyOf", "@type": "@id", "@container": "@set" }, "protocol": { "@id": "fep:fffd/protocol", "@type": "@id" }, "proxied": { "@id": "fep:fffd/proxied", "@type": "xsd:string" }, "authoritative": { "@id": "fep:fffd/authoritative", "@type": "xsd:boolean" } } ], "type": "Note", "id": "https://mostr.pub/objects/92179f9bf185f5571d454b676db5f3178756b97bbc287c545b08d13b465069ea", "attributedTo": "https://mostr.pub/users/f3314470c23fb0797e27a1c9b569b76e0c3956beb9b9dbf6ff72308d1a2e8712", "content": "<a href=\"https://techbullion.com/what-is-sesh-and-how-it-powers-the-session-messaging-app-interview-with-co-founder-kee-jefferys/\">https://techbullion.com/what-is-sesh-and-how-it-powers-the-session-messaging-app-interview-with-co-founder-kee-jefferys/</a><br /><br /><a class=\"mention hashtag\" href=\"https://mostr.pub/tags/session\" rel=\"tag\"><span>#</span>session</a> $SESH<br /><a class=\"mention hashtag\" href=\"https://mostr.pub/tags/messaging\" rel=\"tag\"><span>#</span>messaging</a> <a class=\"mention hashtag\" href=\"https://mostr.pub/tags/privacy\" rel=\"tag\"><span>#</span>privacy</a>", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mostr.pub/users/f3314470c23fb0797e27a1c9b569b76e0c3956beb9b9dbf6ff72308d1a2e8712/followers" ], "tag": [ { "type": "Hashtag", "href": "https://mostr.pub/tags/session", "name": "#session" }, { "type": "Hashtag", "href": "https://mostr.pub/tags/messaging", "name": "#messaging" }, { "type": "Hashtag", "href": "https://mostr.pub/tags/privacy", "name": "#privacy" } ], "attachment": [], "sensitive": false, "published": "2025-02-24T15:05:50.000Z", "proxyOf": [ { "protocol": "https://github.com/nostr-protocol/nostr", "proxied": "note1jgtelxl3sh64w829fdnkmd0nz7r4dwtmhs58c4zmprgnk3jsd84qy3g5ak", "authoritative": true } ] }