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://spacey.space/users/spaceflight/statuses/114399838873793878",
"type": "Note",
"summary": null,
"inReplyTo": "https://spacey.space/users/spaceflight/statuses/114399712486745313",
"published": "2025-04-25T17:43:30Z",
"url": "https://spacey.space/@spaceflight/114399838873793878",
"attributedTo": "https://spacey.space/users/spaceflight",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://spacey.space/users/spaceflight/followers"
],
"sensitive": false,
"atomUri": "https://spacey.space/users/spaceflight/statuses/114399838873793878",
"inReplyToAtomUri": "https://spacey.space/users/spaceflight/statuses/114399712486745313",
"conversation": "tag:spacey.space,2025-04-20:objectId=28602741:objectType=Conversation",
"content": "<p>To get enough fuel ⛽ into <a href=\"https://spacey.space/tags/orbit\" class=\"mention hashtag\" rel=\"tag\">#<span>orbit</span></a> for a <a href=\"https://spacey.space/tags/Mars\" class=\"mention hashtag\" rel=\"tag\">#<span>Mars</span></a> 🔴 mission would require at least 10 launches of the <a href=\"https://spacey.space/tags/SLS\" class=\"mention hashtag\" rel=\"tag\">#<span>SLS</span></a> rocket, or about $20 billion 💰. Just for the fuel. To use traditional propulsion, one needs to push the boundaries of <a href=\"https://spacey.space/tags/reuse\" class=\"mention hashtag\" rel=\"tag\">#<span>reuse</span></a> ♻️ and heavy lift rockets to extreme limits—which is precisely what <a href=\"https://spacey.space/tags/SpaceX\" class=\"mention hashtag\" rel=\"tag\">#<span>SpaceX</span></a> is trying to do with its fully reusable launch system <a href=\"https://arstechnica.com/science/2021/02/report-nasas-only-realistic-path-for-humans-on-mars-is-nuclear-propulsion\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">arstechnica.com/science/2021/0</span><span class=\"invisible\">2/report-nasas-only-realistic-path-for-humans-on-mars-is-nuclear-propulsion</span></a></p><p><a href=\"https://spacey.space/tags/SpacecraftPropulsion\" class=\"mention hashtag\" rel=\"tag\">#<span>SpacecraftPropulsion</span></a> <a href=\"https://spacey.space/tags/reusability\" class=\"mention hashtag\" rel=\"tag\">#<span>reusability</span></a> <a href=\"https://spacey.space/tags/LaunchCost\" class=\"mention hashtag\" rel=\"tag\">#<span>LaunchCost</span></a></p>",
"contentMap": {
"en": "<p>To get enough fuel ⛽ into <a href=\"https://spacey.space/tags/orbit\" class=\"mention hashtag\" rel=\"tag\">#<span>orbit</span></a> for a <a href=\"https://spacey.space/tags/Mars\" class=\"mention hashtag\" rel=\"tag\">#<span>Mars</span></a> 🔴 mission would require at least 10 launches of the <a href=\"https://spacey.space/tags/SLS\" class=\"mention hashtag\" rel=\"tag\">#<span>SLS</span></a> rocket, or about $20 billion 💰. Just for the fuel. To use traditional propulsion, one needs to push the boundaries of <a href=\"https://spacey.space/tags/reuse\" class=\"mention hashtag\" rel=\"tag\">#<span>reuse</span></a> ♻️ and heavy lift rockets to extreme limits—which is precisely what <a href=\"https://spacey.space/tags/SpaceX\" class=\"mention hashtag\" rel=\"tag\">#<span>SpaceX</span></a> is trying to do with its fully reusable launch system <a href=\"https://arstechnica.com/science/2021/02/report-nasas-only-realistic-path-for-humans-on-mars-is-nuclear-propulsion\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">arstechnica.com/science/2021/0</span><span class=\"invisible\">2/report-nasas-only-realistic-path-for-humans-on-mars-is-nuclear-propulsion</span></a></p><p><a href=\"https://spacey.space/tags/SpacecraftPropulsion\" class=\"mention hashtag\" rel=\"tag\">#<span>SpacecraftPropulsion</span></a> <a href=\"https://spacey.space/tags/reusability\" class=\"mention hashtag\" rel=\"tag\">#<span>reusability</span></a> <a href=\"https://spacey.space/tags/LaunchCost\" class=\"mention hashtag\" rel=\"tag\">#<span>LaunchCost</span></a></p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://spacey.space/tags/orbit",
"name": "#orbit"
},
{
"type": "Hashtag",
"href": "https://spacey.space/tags/mars",
"name": "#mars"
},
{
"type": "Hashtag",
"href": "https://spacey.space/tags/SLS",
"name": "#SLS"
},
{
"type": "Hashtag",
"href": "https://spacey.space/tags/reuse",
"name": "#reuse"
},
{
"type": "Hashtag",
"href": "https://spacey.space/tags/spacex",
"name": "#spacex"
},
{
"type": "Hashtag",
"href": "https://spacey.space/tags/spacecraftpropulsion",
"name": "#spacecraftpropulsion"
},
{
"type": "Hashtag",
"href": "https://spacey.space/tags/reusability",
"name": "#reusability"
},
{
"type": "Hashtag",
"href": "https://spacey.space/tags/launchcost",
"name": "#launchcost"
}
],
"replies": {
"id": "https://spacey.space/users/spaceflight/statuses/114399838873793878/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://spacey.space/users/spaceflight/statuses/114399838873793878/replies?only_other_accounts=true&page=true",
"partOf": "https://spacey.space/users/spaceflight/statuses/114399838873793878/replies",
"items": []
}
},
"likes": {
"id": "https://spacey.space/users/spaceflight/statuses/114399838873793878/likes",
"type": "Collection",
"totalItems": 4
},
"shares": {
"id": "https://spacey.space/users/spaceflight/statuses/114399838873793878/shares",
"type": "Collection",
"totalItems": 1
}
}