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", "Device": "toot:Device", "Ed25519Signature": "toot:Ed25519Signature", "Ed25519Key": "toot:Ed25519Key", "Curve25519Key": "toot:Curve25519Key", "EncryptedMessage": "toot:EncryptedMessage", "publicKeyBase64": "toot:publicKeyBase64", "deviceId": "toot:deviceId", "claim": { "@type": "@id", "@id": "toot:claim" }, "fingerprintKey": { "@type": "@id", "@id": "toot:fingerprintKey" }, "identityKey": { "@type": "@id", "@id": "toot:identityKey" }, "devices": { "@type": "@id", "@id": "toot:devices" }, "messageFranking": "toot:messageFranking", "messageType": "toot:messageType", "cipherText": "toot:cipherText", "suspended": "toot:suspended", "Hashtag": "as:Hashtag", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" } } ], "id": "https://mastodon.sdf.org/users/SETIEric", "type": "Person", "following": "https://mastodon.sdf.org/users/SETIEric/following", "followers": "https://mastodon.sdf.org/users/SETIEric/followers", "inbox": "https://mastodon.sdf.org/users/SETIEric/inbox", "outbox": "https://mastodon.sdf.org/users/SETIEric/outbox", "featured": "https://mastodon.sdf.org/users/SETIEric/collections/featured", "featuredTags": "https://mastodon.sdf.org/users/SETIEric/collections/tags", "preferredUsername": "SETIEric", "name": "Eric Bah Humbug", "summary": "<p>I&#39;m an astronomer specializing in <a href=\"https://mastodon.sdf.org/tags/SETI\" class=\"mention hashtag\" rel=\"tag\">#<span>SETI</span></a>, <a href=\"https://mastodon.sdf.org/tags/UV\" class=\"mention hashtag\" rel=\"tag\">#<span>UV</span></a> <a href=\"https://mastodon.sdf.org/tags/Instrumentation\" class=\"mention hashtag\" rel=\"tag\">#<span>Instrumentation</span></a>. <a href=\"https://mastodon.sdf.org/tags/RadioAstronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>RadioAstronomy</span></a>, <a href=\"https://mastodon.sdf.org/tags/InterstellarMatter\" class=\"mention hashtag\" rel=\"tag\">#<span>InterstellarMatter</span></a> (<a href=\"https://mastodon.sdf.org/tags/ISM\" class=\"mention hashtag\" rel=\"tag\">#<span>ISM</span></a>), <a href=\"https://mastodon.sdf.org/tags/VolunteerComputing\" class=\"mention hashtag\" rel=\"tag\">#<span>VolunteerComputing</span></a>, <a href=\"https://mastodon.sdf.org/tags/BOINC\" class=\"mention hashtag\" rel=\"tag\">#<span>BOINC</span></a>, <a href=\"https://mastodon.sdf.org/tags/SETIatHome\" class=\"mention hashtag\" rel=\"tag\">#<span>SETIatHome</span></a>, <a href=\"https://mastodon.sdf.org/tags/retroComputing\" class=\"mention hashtag\" rel=\"tag\">#<span>retroComputing</span></a> <a href=\"https://mastodon.sdf.org/tags/retroGaming\" class=\"mention hashtag\" rel=\"tag\">#<span>retroGaming</span></a> ...Wait a minute... That&#39;s not specializing!</p>", "url": "https://mastodon.sdf.org/@SETIEric", "manuallyApprovesFollowers": false, "discoverable": true, "published": "2024-08-29T00:00:00Z", "devices": "https://mastodon.sdf.org/users/SETIEric/collections/devices", "alsoKnownAs": [ "https://qoto.org/users/SETIEric" ], "publicKey": { "id": "https://mastodon.sdf.org/users/SETIEric#main-key", "owner": "https://mastodon.sdf.org/users/SETIEric", "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAm3J8Me6AKnDDJisBtm8r\n+/H8FMhyE61efTATebhrw16TVUFism0IoEhHAsNShgjQ3aWkamZalw4eJcYxMGvS\nHxqdLTrFcEiU4Fkg55kCZlvz3Ccy781Ri9aWI5YRYsj0kSlc7WXaM6ab4/7fhq/n\n/e1RvGjowPmtc8/AKxx4rEd9oX7qZV/Qg7XO6Jz6YYE39o/TXoKPhdFKjhQS5KpJ\nTV8dnyGI6sIorzX5tHL1P5fCtHag5QBwvMVfQTVoyanduI6fvRYOZaYvSsW+6koh\nyefIUdYtvlQWjWqqTFXmIArwkeJlWs0s7/fuolPpkBXwXvzCiBsDcMtY5KKASIph\nvwIDAQAB\n-----END PUBLIC KEY-----\n" }, "tag": [ { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/seti", "name": "#seti" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/uv", "name": "#uv" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/instrumentation", "name": "#instrumentation" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/radioastronomy", "name": "#radioastronomy" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/interstellarmatter", "name": "#interstellarmatter" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/ism", "name": "#ism" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/volunteercomputing", "name": "#volunteercomputing" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/boinc", "name": "#boinc" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/setiathome", "name": "#setiathome" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/retrocomputing", "name": "#retrocomputing" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/retrogaming", "name": "#retrogaming" } ], "attachment": [ { "type": "PropertyValue", "name": "Facebook", "value": "<a href=\"https://www.facebook.com/eric.korpela\" target=\"_blank\" rel=\"nofollow noopener noreferrer me\"><span class=\"invisible\">https://www.</span><span class=\"\">facebook.com/eric.korpela</span><span class=\"invisible\"></span></a>" }, { "type": "PropertyValue", "name": "OpenCheck", "value": "<a href=\"https://opencheck.is/person/Eric_J_Korpela\" target=\"_blank\" rel=\"nofollow noopener noreferrer me\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">opencheck.is/person/Eric_J_Kor</span><span class=\"invisible\">pela</span></a>" }, { "type": "PropertyValue", "name": "FlipBoard", "value": "<a href=\"https://flipboard.com/@ekorpela\" target=\"_blank\" rel=\"nofollow noopener noreferrer me\"><span class=\"invisible\">https://</span><span class=\"\">flipboard.com/@ekorpela</span><span class=\"invisible\"></span></a>" }, { "type": "PropertyValue", "name": "berkeley.edu", "value": "<a href=\"https://setiathome.berkeley.edu/~korpela\" target=\"_blank\" rel=\"nofollow noopener noreferrer me\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">setiathome.berkeley.edu/~korpe</span><span class=\"invisible\">la</span></a>" } ], "endpoints": { "sharedInbox": "https://mastodon.sdf.org/inbox" }, "icon": { "type": "Image", "mediaType": "image/gif", "url": "https://mastodon.sdf.org/system/accounts/avatars/113/046/502/673/901/646/original/37da7bc1fe10b17c.gif" }, "image": { "type": "Image", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/accounts/headers/113/046/502/673/901/646/original/8642c1e4cbb55845.png" } }