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.social/users/mikelossmann", "type": "Person", "following": "https://mastodon.social/users/mikelossmann/following", "followers": "https://mastodon.social/users/mikelossmann/followers", "inbox": "https://mastodon.social/users/mikelossmann/inbox", "outbox": "https://mastodon.social/users/mikelossmann/outbox", "featured": "https://mastodon.social/users/mikelossmann/collections/featured", "featuredTags": "https://mastodon.social/users/mikelossmann/collections/tags", "preferredUsername": "mikelossmann", "name": "Mike Lossmann", "summary": "<p>Networking Thought Leader and Speaker. Technical Evangelist @ForwardNetworks. My opinions are my own.</p>", "url": "https://mastodon.social/@mikelossmann", "manuallyApprovesFollowers": false, "discoverable": false, "indexable": false, "published": "2025-04-23T00:00:00Z", "memorial": false, "alsoKnownAs": [ "https://mastodon.social/users/packetdefender" ], "publicKey": { "id": "https://mastodon.social/users/mikelossmann#main-key", "owner": "https://mastodon.social/users/mikelossmann", "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuhhB9aw//edbrNdKVjKv\nN5rX1kSYj3XgO271p/x7cxL5OT/aG/7dP7wjNR/MaxFeEppRYuQqU8OFrQqD9eOH\n20Gb0BZVnSgsK8p2kRX9mG7aCvW6BPXAMrd4ta0ay6UUfeGnGhxgK8zxoZiuvx/m\nNYF1EDETIW7oUIxum9EKkgT7UvGrwHb3tR1PHyNkbxkfuJiUHaDaSpcpeT5d5BvR\niECO0LmDa5ctmHWKPxOKOP8OJjCBc6fMQccgVEbdsP1lWmIIHvjIz5vLnlCz/uLv\n8KGXspeMSifwgJ/g0P/HnDoE4iaEemsW798bsmTcUVskSJP6/WIDgyqp5oVjpgxt\nXQIDAQAB\n-----END PUBLIC KEY-----\n" }, "tag": [], "attachment": [], "endpoints": { "sharedInbox": "https://mastodon.social/inbox" }, "icon": { "type": "Image", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/accounts/avatars/114/387/774/742/062/075/original/11a62cd03a1a9cbc.jpg" } }