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", { "manuallyApprovesFollowers": "as:manuallyApprovesFollowers", "toot": "http://joinmastodon.org/ns#", "featured": { "@id": "toot:featured", "@type": "@id" }, "featuredTags": { "@id": "toot:featuredTags", "@type": "@id" }, "alsoKnownAs": { "@id": "as:alsoKnownAs", "@type": "@id" }, "movedTo": { "@id": "as:movedTo", "@type": "@id" }, "schema": "http://schema.org#", "PropertyValue": "schema:PropertyValue", "value": "schema:value", "discoverable": "toot:discoverable", "suspended": "toot:suspended", "memorial": "toot:memorial", "indexable": "toot:indexable", "attributionDomains": { "@id": "toot:attributionDomains", "@type": "@id" }, "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" } } ], "id": "https://mastodon.uno/users/poul_polimi", "type": "Person", "following": "https://mastodon.uno/users/poul_polimi/following", "followers": "https://mastodon.uno/users/poul_polimi/followers", "inbox": "https://mastodon.uno/users/poul_polimi/inbox", "outbox": "https://mastodon.uno/users/poul_polimi/outbox", "featured": "https://mastodon.uno/users/poul_polimi/collections/featured", "featuredTags": "https://mastodon.uno/users/poul_polimi/collections/tags", "preferredUsername": "poul_polimi", "name": "POuL", "summary": "<p>Politecnico Open unix Labs<br /><a href=\"https://poul.org\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">poul.org</span><span class=\"invisible\"></span></a></p>", "url": "https://mastodon.uno/@poul_polimi", "manuallyApprovesFollowers": false, "discoverable": true, "indexable": true, "published": "2025-05-27T00:00:00Z", "memorial": false, "alsoKnownAs": [ "https://mastodon.social/users/poul_polimi" ], "publicKey": { "id": "https://mastodon.uno/users/poul_polimi#main-key", "owner": "https://mastodon.uno/users/poul_polimi", "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv56zqiLi7yoS1o9/0uF0\n0z1x+hItg1Jp0ltGHaeifXKo+DxQ9bwCmYnDd/bsi5DzhxZD166WLkWo6hcCdVDP\nojUQNZng3/oW2X/59oP/0PA4YBBgIPZNR/aaqR5yh3LhoNRYZRARDrsWwhMvTpPI\n5Ed9zJDOjvg6ApEy18BohAFxAq6pnsoco9llvUFMIH2iEvSfuGQ2ciic7wdkzJt4\n/XgleJHYiqvxYA/jdnvOm1gC5FK0laacG6Q1NuHbKyG33JNK0OvmEB3hrC7C8OTw\nAbKVbC+OzpUNH+Ax0RbknBD9fxpDOlpl68bEgdAMTJDlV52secNaPdXs8tv6M22G\nuwIDAQAB\n-----END PUBLIC KEY-----\n" }, "tag": [], "attachment": [], "endpoints": { "sharedInbox": "https://mastodon.uno/inbox" }, "icon": { "type": "Image", "mediaType": "image/png", "url": "https://cdn.masto.host/mastodonuno/accounts/avatars/114/579/364/402/811/254/original/e67ea2ee1a36bf22.png" }, "image": { "type": "Image", "mediaType": "image/jpeg", "url": "https://cdn.masto.host/mastodonuno/accounts/headers/114/579/364/402/811/254/original/4e39a6a4edcdbce1.jpg" } }