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.
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"ostatus": "http://ostatus.org#",
"atomUri": "ostatus:atomUri",
"inReplyToAtomUri": "ostatus:inReplyToAtomUri",
"conversation": "ostatus:conversation",
"sensitive": "as:sensitive",
"toot": "http://joinmastodon.org/ns#",
"votersCount": "toot:votersCount",
"Hashtag": "as:Hashtag"
}
],
"id": "https://mathstodon.xyz/users/counting_is_hard/statuses/114746127366826808",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-06-25T21:29:13Z",
"url": "https://mathstodon.xyz/@counting_is_hard/114746127366826808",
"attributedTo": "https://mathstodon.xyz/users/counting_is_hard",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mathstodon.xyz/users/counting_is_hard/followers",
"https://mastodon.acm.org/users/mspstrath"
],
"sensitive": false,
"atomUri": "https://mathstodon.xyz/users/counting_is_hard/statuses/114746127366826808",
"inReplyToAtomUri": null,
"conversation": "tag:mathstodon.xyz,2025-06-25:objectId=160131396:objectType=Conversation",
"content": "<p>Thanks to the work of <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.acm.org/@mspstrath\" class=\"u-url mention\">@<span>mspstrath</span></a></span> all the TYPES 2025 talks are available (including mine)<br />Update: as fred points out the playlist was not supposed to be public yet, so, er watch this space</p><p><a href=\"https://www.youtube.com/watch?v=W-lYwG3E_x4&\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">youtube.com/watch?v=W-lYwG3E_x</span><span class=\"invisible\">4&</span></a></p><p>Like comment and subscribe, ring the bell, all that stuff</p><p><a href=\"https://mathstodon.xyz/tags/categorytheory\" class=\"mention hashtag\" rel=\"tag\">#<span>categorytheory</span></a> <a href=\"https://mathstodon.xyz/tags/computability\" class=\"mention hashtag\" rel=\"tag\">#<span>computability</span></a></p>",
"contentMap": {
"en": "<p>Thanks to the work of <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.acm.org/@mspstrath\" class=\"u-url mention\">@<span>mspstrath</span></a></span> all the TYPES 2025 talks are available (including mine)<br />Update: as fred points out the playlist was not supposed to be public yet, so, er watch this space</p><p><a href=\"https://www.youtube.com/watch?v=W-lYwG3E_x4&\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">youtube.com/watch?v=W-lYwG3E_x</span><span class=\"invisible\">4&</span></a></p><p>Like comment and subscribe, ring the bell, all that stuff</p><p><a href=\"https://mathstodon.xyz/tags/categorytheory\" class=\"mention hashtag\" rel=\"tag\">#<span>categorytheory</span></a> <a href=\"https://mathstodon.xyz/tags/computability\" class=\"mention hashtag\" rel=\"tag\">#<span>computability</span></a></p>"
},
"updated": "2025-06-25T22:50:35Z",
"attachment": [],
"tag": [
{
"type": "Mention",
"href": "https://mastodon.acm.org/users/mspstrath",
"name": "@mspstrath@mastodon.acm.org"
},
{
"type": "Hashtag",
"href": "https://mathstodon.xyz/tags/computability",
"name": "#computability"
},
{
"type": "Hashtag",
"href": "https://mathstodon.xyz/tags/categorytheory",
"name": "#categorytheory"
}
],
"replies": {
"id": "https://mathstodon.xyz/users/counting_is_hard/statuses/114746127366826808/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mathstodon.xyz/users/counting_is_hard/statuses/114746127366826808/replies?only_other_accounts=true&page=true",
"partOf": "https://mathstodon.xyz/users/counting_is_hard/statuses/114746127366826808/replies",
"items": []
}
},
"likes": {
"id": "https://mathstodon.xyz/users/counting_is_hard/statuses/114746127366826808/likes",
"type": "Collection",
"totalItems": 6
},
"shares": {
"id": "https://mathstodon.xyz/users/counting_is_hard/statuses/114746127366826808/shares",
"type": "Collection",
"totalItems": 4
}
}