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"
}
],
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"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-06-19T16:14:17Z",
"url": "https://rss-mstdn.studiofreesia.com/@youtube_HakuiKoyori/114710915130373532",
"attributedTo": "https://rss-mstdn.studiofreesia.com/users/youtube_HakuiKoyori",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
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],
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"conversation": "tag:rss-mstdn.studiofreesia.com,2025-06-19:objectId=15613954:objectType=Conversation",
"content": "<p>【ホロカ開封】発売前日！第4弾キュリアスユニバース1カートン開封！SEC当てるぞおおお！！！【博衣こより/ホロライブ】<br /><a href=\"https://www.youtube.com/watch?v=FlEyLJBUx4Y\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">youtube.com/watch?v=FlEyLJBUx4</span><span class=\"invisible\">Y</span></a></p><p><a href=\"https://rss-mstdn.studiofreesia.com/tags/youtube_HakuiKoyori\" class=\"mention hashtag\" rel=\"tag\">#<span>youtube_HakuiKoyori</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/hololive\" class=\"mention hashtag\" rel=\"tag\">#<span>hololive</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%9B%E3%83%AD%E3%83%A9%E3%82%A4%E3%83%96\" class=\"mention hashtag\" rel=\"tag\">#<span>ホロライブ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/6%E6%9C%9F%E7%94%9F\" class=\"mention hashtag\" rel=\"tag\">#<span>6期生</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E7%94%9F%E9%85%8D%E4%BF%A1\" class=\"mention hashtag\" rel=\"tag\">#<span>生配信</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/Vtuber\" class=\"mention hashtag\" rel=\"tag\">#<span>Vtuber</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%90%E3%83%BC%E3%83%81%E3%83%A3%E3%83%ABYoutuber\" class=\"mention hashtag\" rel=\"tag\">#<span>バーチャルYoutuber</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%9B%E3%83%AD%E3%82%AB\" class=\"mention hashtag\" rel=\"tag\">#<span>ホロカ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/hololiveOCG\" class=\"mention hashtag\" rel=\"tag\">#<span>hololiveOCG</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%9B%E3%83%AD%E3%83%A9%E3%82%A4%E3%83%96OCG\" class=\"mention hashtag\" rel=\"tag\">#<span>ホロライブOCG</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E9%96%8B%E5%B0%81\" class=\"mention hashtag\" rel=\"tag\">#<span>開封</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E6%96%B0%E5%BC%BE\" class=\"mention hashtag\" rel=\"tag\">#<span>新弾</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/hololive_OFFICIAL_CARD_GAME\" class=\"mention hashtag\" rel=\"tag\">#<span>hololive_OFFICIAL_CARD_GAME</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%82%AD%E3%83%A5%E3%83%AA%E3%82%A2%E3%82%B9%E3%83%A6%E3%83%8B%E3%83%90%E3%83%BC%E3%82%B9\" class=\"mention hashtag\" rel=\"tag\">#<span>キュリアスユニバース</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%A9%E3%83%97%E3%81%93%E3%82%88\" class=\"mention hashtag\" rel=\"tag\">#<span>ラプこよ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%81%93%E3%82%88%E3%82%8A\" class=\"mention hashtag\" rel=\"tag\">#<span>こより</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%81%93%E3%82%88%E3%82%8A%E3%83%87%E3%83%83%E3%82%AD\" class=\"mention hashtag\" rel=\"tag\">#<span>こよりデッキ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/SEC\" class=\"mention hashtag\" rel=\"tag\">#<span>SEC</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%9B%E3%83%AD%E3%82%AB4%E5%BC%BE\" class=\"mention hashtag\" rel=\"tag\">#<span>ホロカ4弾</span></a></p>",
"contentMap": {
"ja": "<p>【ホロカ開封】発売前日！第4弾キュリアスユニバース1カートン開封！SEC当てるぞおおお！！！【博衣こより/ホロライブ】<br /><a href=\"https://www.youtube.com/watch?v=FlEyLJBUx4Y\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">youtube.com/watch?v=FlEyLJBUx4</span><span class=\"invisible\">Y</span></a></p><p><a href=\"https://rss-mstdn.studiofreesia.com/tags/youtube_HakuiKoyori\" class=\"mention hashtag\" rel=\"tag\">#<span>youtube_HakuiKoyori</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/hololive\" class=\"mention hashtag\" rel=\"tag\">#<span>hololive</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%9B%E3%83%AD%E3%83%A9%E3%82%A4%E3%83%96\" class=\"mention hashtag\" rel=\"tag\">#<span>ホロライブ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/6%E6%9C%9F%E7%94%9F\" class=\"mention hashtag\" rel=\"tag\">#<span>6期生</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E7%94%9F%E9%85%8D%E4%BF%A1\" class=\"mention hashtag\" rel=\"tag\">#<span>生配信</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/Vtuber\" class=\"mention hashtag\" rel=\"tag\">#<span>Vtuber</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%90%E3%83%BC%E3%83%81%E3%83%A3%E3%83%ABYoutuber\" class=\"mention hashtag\" rel=\"tag\">#<span>バーチャルYoutuber</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%9B%E3%83%AD%E3%82%AB\" class=\"mention hashtag\" rel=\"tag\">#<span>ホロカ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/hololiveOCG\" class=\"mention hashtag\" rel=\"tag\">#<span>hololiveOCG</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%9B%E3%83%AD%E3%83%A9%E3%82%A4%E3%83%96OCG\" class=\"mention hashtag\" rel=\"tag\">#<span>ホロライブOCG</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E9%96%8B%E5%B0%81\" class=\"mention hashtag\" rel=\"tag\">#<span>開封</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E6%96%B0%E5%BC%BE\" class=\"mention hashtag\" rel=\"tag\">#<span>新弾</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/hololive_OFFICIAL_CARD_GAME\" class=\"mention hashtag\" rel=\"tag\">#<span>hololive_OFFICIAL_CARD_GAME</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%82%AD%E3%83%A5%E3%83%AA%E3%82%A2%E3%82%B9%E3%83%A6%E3%83%8B%E3%83%90%E3%83%BC%E3%82%B9\" class=\"mention hashtag\" rel=\"tag\">#<span>キュリアスユニバース</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%A9%E3%83%97%E3%81%93%E3%82%88\" class=\"mention hashtag\" rel=\"tag\">#<span>ラプこよ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%81%93%E3%82%88%E3%82%8A\" class=\"mention hashtag\" rel=\"tag\">#<span>こより</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%81%93%E3%82%88%E3%82%8A%E3%83%87%E3%83%83%E3%82%AD\" class=\"mention hashtag\" rel=\"tag\">#<span>こよりデッキ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/SEC\" class=\"mention hashtag\" rel=\"tag\">#<span>SEC</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%9B%E3%83%AD%E3%82%AB4%E5%BC%BE\" class=\"mention hashtag\" rel=\"tag\">#<span>ホロカ4弾</span></a></p>"
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{
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"href": "https://rss-mstdn.studiofreesia.com/tags/youtube_hakuikoyori",
"name": "#youtube_hakuikoyori"
},
{
"type": "Hashtag",
"href": "https://rss-mstdn.studiofreesia.com/tags/hololive",
"name": "#hololive"
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{
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"href": "https://rss-mstdn.studiofreesia.com/tags/%E3%83%9B%E3%83%AD%E3%83%A9%E3%82%A4%E3%83%96",
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{
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"name": "#生配信"
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"name": "#vtuber"
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{
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"href": "https://rss-mstdn.studiofreesia.com/tags/%E3%83%90%E3%83%BC%E3%83%81%E3%83%A3%E3%83%AByoutuber",
"name": "#バーチャルyoutuber"
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{
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"name": "#ホロカ"
},
{
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"href": "https://rss-mstdn.studiofreesia.com/tags/hololiveocg",
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{
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{
"type": "Hashtag",
"href": "https://rss-mstdn.studiofreesia.com/tags/%E9%96%8B%E5%B0%81",
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{
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"href": "https://rss-mstdn.studiofreesia.com/tags/%E6%96%B0%E5%BC%BE",
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{
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"href": "https://rss-mstdn.studiofreesia.com/tags/%E3%81%93%E3%82%88%E3%82%8A",
"name": "#こより"
},
{
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"href": "https://rss-mstdn.studiofreesia.com/tags/%E3%81%93%E3%82%88%E3%82%8A%E3%83%87%E3%83%83%E3%82%AD",
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}