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/5cc10269dbc23daebb1a65a49471fd410baae8bf90fce9a87aafa82ff5349900", "attributedTo": "https://mostr.pub/users/d6149823c90c4865e4bc434a4be1a1ee8f72aabd8328dd059ba4f11f7633b0b6", "content": "I have some cool mesh-related stuff coming up soon for publishing.<br /><br /><a class=\"mention hashtag\" href=\"https://mostr.pub/tags/mesh\" rel=\"tag\"><span>#</span>mesh</a> <a class=\"mention hashtag\" href=\"https://mostr.pub/tags/networking\" rel=\"tag\"><span>#</span>networking</a>", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mostr.pub/users/d6149823c90c4865e4bc434a4be1a1ee8f72aabd8328dd059ba4f11f7633b0b6/followers" ], "tag": [ { "type": "Hashtag", "href": "https://mostr.pub/tags/mesh", "name": "#mesh" }, { "type": "Hashtag", "href": "https://mostr.pub/tags/networking", "name": "#networking" } ], "attachment": [], "sensitive": false, "published": "2025-05-07T13:28:58.000Z", "generator": { "type": "Application", "name": "Mostr Bridge", "url": "https://mostr.pub/" }, "proxyOf": [ { "protocol": "https://github.com/nostr-protocol/nostr", "proxied": "note1tnqsy6wmcg76awc6vkjfgu0agy96469ljr7wn2r6475zlaf5nyqqu9yqua", "authoritative": true } ] }