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", "https://w3id.org/security/data-integrity/v1", "https://www.w3.org/ns/did/v1", "https://w3id.org/security/multikey/v1", { "alsoKnownAs": { "@id": "as:alsoKnownAs", "@type": "@id" }, "manuallyApprovesFollowers": "as:manuallyApprovesFollowers", "movedTo": { "@id": "as:movedTo", "@type": "@id" }, "toot": "http://joinmastodon.org/ns#", "Emoji": "toot:Emoji", "featured": { "@id": "toot:featured", "@type": "@id" }, "featuredTags": { "@id": "toot:featuredTags", "@type": "@id" }, "discoverable": "toot:discoverable", "suspended": "toot:suspended", "memorial": "toot:memorial", "indexable": "toot:indexable", "schema": "http://schema.org#", "PropertyValue": "schema:PropertyValue", "value": "schema:value", "misskey": "https://misskey-hub.net/ns#", "_misskey_followedMessage": "misskey:_misskey_followedMessage", "isCat": "misskey:isCat" } ], "id": "https://www.defensestartups.com/.ghost/activitypub/users/index", "type": "Person", "inbox": "https://www.defensestartups.com/.ghost/activitypub/inbox/index", "publicKey": { "id": "https://www.defensestartups.com/.ghost/activitypub/users/index#main-key", "type": "CryptographicKey", "owner": "https://www.defensestartups.com/.ghost/activitypub/users/index", "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAi71UddcC+H3h9+CBfSZZ\nuQOC3E26kGzaNl7KVT77GtrdpAHKUTbbmbk5aolgmrNQz5gnYCWzbb9Zu6rzv1nh\nWesS8sWEvqcmIXb5L/ngE9tExVkmZmM2BGeAYcM/rMmdi4TPRpKAQ6Qb/iB1kycF\nnBS1uQyvF4Cmg/5FZEoZ16bWfARR1Jzc/tIuRV6XTpN6eRAoGlW8y8YaJVCZPeDD\nBqbqDgVLVH1SgnTkqZ1S5OnyUME58j8z/mRJyR3sKbs/TQgXI0l87roi4SSGbbKp\ncSrwIfHlG7Ph2treh8in/Az+e+EFQ7B/4gAEWLa5KBgNf0l/bgz/bnhFgWTKEP4U\nHUsqK4LdzQHmsoogculBlcLFVSmOH4UoTO7BJ28Im/NH8Tpf+Mvv8HBkO6ZDxkNy\nOvav/1PmeCkGDGpJPJY4IpGsLbtNwZkN8A2/fsJQ/sGZP9W0z+zFjtHiklphlVOm\n6od8644i1oqTeNpSjaZZq6Mjd7sZw/5GmRhkRPZwzVFn4QGEdyaRISVWqmtfbBpk\ni0Md7xhUUjGGRMGoPTpxGX7w67SrOY2JS8jDMIoIkEklpWjNJdywuRChnMek4cpM\nLIUj/Bgsln1toe3rHp5ne2WH4tH9X6GS1Ik7y9dbaCc1a2kURE3ADKehnFDIy+Yk\n4mkhyMQxfq6baxMevKNkoSkCAwEAAQ==\n-----END PUBLIC KEY-----\n" }, "followers": "https://www.defensestartups.com/.ghost/activitypub/followers/index", "following": "https://www.defensestartups.com/.ghost/activitypub/following/index", "icon": { "type": "Image", "url": "https://www.defensestartups.com/content/images/2025/04/Image-1.png" }, "liked": "https://www.defensestartups.com/.ghost/activitypub/liked/index", "name": "Defense Startups", "outbox": "https://www.defensestartups.com/.ghost/activitypub/outbox/index", "preferredUsername": "index", "summary": "The publication dedicated to the Defense Startups and Small Business concern", "url": "https://www.defensestartups.com/" }