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" ], "acceptPrivateMessages": 2, "discoverable": true, "endpoints": { "sharedInbox": "https://piefed.social/inbox" }, "icon": { "type": "Image", "url": "https://media.piefed.social/users/8N/pt/8Nptzy6qqB1XogS.jpg" }, "id": "https://piefed.social/u/klu9", "inbox": "https://piefed.social/u/klu9/inbox", "indexable": false, "manuallyApprovesFollowers": false, "name": "klu9", "outbox": "https://piefed.social/u/klu9/outbox", "preferredUsername": "klu9", "publicKey": { "id": "https://piefed.social/u/klu9#main-key", "owner": "https://piefed.social/u/klu9", "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3hzXrssm1MXG4BMdrxFO\nDQf5kLf3hzQcaJEF7VSjsdJB7IdJavo/r3nQaKmcVijbP7/iTPSQ02jSCifXKFKW\nEUR1uoW60Jn8ebaZRJbewlFhHUXuZ/o6lfsUmCRAzlMqZfThsDjKgr1pfWavqBTD\nhKVKGylsyY6wmcbNTd4n5WN81KbmAiHE/2njxGVwLhjsm12EV8alQdMHsJnaIyVi\nC13xxi+0DHAy2EvZG7pgbSNJTplRLyysVy3NGN9MJzLaR7P2T2dS9nIbUKTHWLGp\nLTFR+XNZ0aTTrHuXQoqrILzJpGBJ0HnOqeY7BLZI9RorgG7/0zaiEqZ4UCZuak/9\nywIDAQAB\n-----END PUBLIC KEY-----\n" }, "published": "2025-06-04T21:28:47.740629+00:00", "type": "Person" }