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/h4ckernews", "type": "Service", "following": "https://mastodon.social/users/h4ckernews/following", "followers": "https://mastodon.social/users/h4ckernews/followers", "inbox": "https://mastodon.social/users/h4ckernews/inbox", "outbox": "https://mastodon.social/users/h4ckernews/outbox", "featured": "https://mastodon.social/users/h4ckernews/collections/featured", "featuredTags": "https://mastodon.social/users/h4ckernews/collections/tags", "preferredUsername": "h4ckernews", "name": "Hacker News", "summary": "<p>Unofficial Hacker News Bot, posting Top 10 stories.</p>", "url": "https://mastodon.social/@h4ckernews", "manuallyApprovesFollowers": false, "discoverable": true, "indexable": true, "published": "2025-02-22T00:00:00Z", "memorial": false, "publicKey": { "id": "https://mastodon.social/users/h4ckernews#main-key", "owner": "https://mastodon.social/users/h4ckernews", "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvvT5Ym50lqW9wppHAwdU\nqKMDuXhzq3KQuv/x0iAc+/SOVxjFd9fSc/Xr+QBq/c9vGGw+q8SuwOtPqXuCiRVQ\nbpBz2b5afSTJFcZ21t5Yvg6/vB3bq/KNWcqMm5hSZyo5oWxOipAWX/J8ilyo+ra4\nduOCgtlBDmdDj62j6OhhS1CzTsjbQVCA+QM3j8kQETBZALm2teBzd0gyQhYnych0\nLhdeeejed+d3yvnmuzX4GiGDEW+FstiwTDEtQ2u75W781dOi15eU3L6hmmI7aXnl\ncC1fdLLybPpDAThxFqR8RpyM/jzDrjj1PA7nb1P8SgZ6QGCyddME50IrI35a58hi\n9wIDAQAB\n-----END PUBLIC KEY-----\n" }, "tag": [], "attachment": [ { "type": "PropertyValue", "name": "Source", "value": "<a href=\"https://news.ycombinator.com\" target=\"_blank\" rel=\"nofollow noopener me\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">news.ycombinator.com</span><span class=\"invisible\"></span></a>" }, { "type": "PropertyValue", "name": "Maintained by", "value": "<span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@TheFox21\" class=\"u-url mention\">@<span>TheFox21</span></a></span>" } ], "endpoints": { "sharedInbox": "https://mastodon.social/inbox" }, "icon": { "type": "Image", "mediaType": "image/png", "url": "https://files.mastodon.social/accounts/avatars/114/048/194/944/023/530/original/3a6b93b37c67427d.png" } }