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": "2025-05-02T13:34:34Z",
"url": "https://rss-mstdn.studiofreesia.com/@youtube_ColumbiaMusicJp/114438496206637396",
"attributedTo": "https://rss-mstdn.studiofreesia.com/users/youtube_ColumbiaMusicJp",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://rss-mstdn.studiofreesia.com/users/youtube_ColumbiaMusicJp/followers"
],
"sensitive": false,
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"conversation": "tag:rss-mstdn.studiofreesia.com,2025-05-02:objectId=13861579:objectType=Conversation",
"content": "<p>【アイドルマスター】「スマイルファンタジー（M@ STER VERSION）」(歌：道明寺歌鈴、鷹富士茄子、城ヶ崎莉嘉、川島瑞樹、アナスタシア)<br /><a href=\"https://www.youtube.com/watch?v=GUqqJL_ttF8\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">youtube.com/watch?v=GUqqJL_ttF</span><span class=\"invisible\">8</span></a><br /><a href=\"https://rss-mstdn.studiofreesia.com/tags/youtube_ColumbiaMusicJp\" class=\"mention hashtag\" rel=\"tag\">#<span>youtube_ColumbiaMusicJp</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/UC7RMi15o0aQacJhxOc6LLmw\" class=\"mention hashtag\" rel=\"tag\">#<span>UC7RMi15o0aQacJhxOc6LLmw</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%82%A2%E3%82%A4%E3%83%89%E3%83%AB%E3%83%9E%E3%82%B9%E3%82%BF%E3%83%BC\" class=\"mention hashtag\" rel=\"tag\">#<span>アイドルマスター</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%82%A2%E3%82%A4%E3%83%9E%E3%82%B9\" class=\"mention hashtag\" rel=\"tag\">#<span>アイマス</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/THE_IDOLM_STER\" class=\"mention hashtag\" rel=\"tag\">#<span>THE_IDOLM_STER</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/CINDERELLA_GIRLS\" class=\"mention hashtag\" rel=\"tag\">#<span>CINDERELLA_GIRLS</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%82%B7%E3%83%B3%E3%83%87%E3%83%AC%E3%83%A9%E3%82%AC%E3%83%BC%E3%83%AB%E3%82%BA\" class=\"mention hashtag\" rel=\"tag\">#<span>シンデレラガールズ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%87%E3%83%AC%E3%83%9E%E3%82%B9\" class=\"mention hashtag\" rel=\"tag\">#<span>デレマス</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%82%B9%E3%82%BF%E3%83%BC%E3%83%A9%E3%82%A4%E3%83%88%E3%82%B9%E3%83%86%E3%83%BC%E3%82%B8\" class=\"mention hashtag\" rel=\"tag\">#<span>スターライトステージ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%83%87%E3%83%AC%E3%82%B9%E3%83%86\" class=\"mention hashtag\" rel=\"tag\">#<span>デレステ</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%82%B7%E3%83%B3%E3%83%87%E3%83%AC%E3%83%A9%E3%83%9E%E3%82%B9%E3%82%BF%E3%83%BC\" class=\"mention hashtag\" rel=\"tag\">#<span>シンデレラマスター</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%82%B9%E3%83%9E%E3%82%A4%E3%83%AB%E3%83%95%E3%82%A1%E3%83%B3%E3%82%BF%E3%82%B8%E3%83%BC\" class=\"mention hashtag\" rel=\"tag\">#<span>スマイルファンタジー</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/SMILE_FANTASY\" class=\"mention hashtag\" rel=\"tag\">#<span>SMILE_FANTASY</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/TAKT\" class=\"mention hashtag\" rel=\"tag\">#<span>TAKT</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E9%81%93%E6%98%8E%E5%AF%BA%E6%AD%8C%E9%88%B4\" class=\"mention hashtag\" rel=\"tag\">#<span>道明寺歌鈴</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E9%B7%B9%E5%AF%8C%E5%A3%AB%E8%8C%84%E5%AD%90\" class=\"mention hashtag\" rel=\"tag\">#<span>鷹富士茄子</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E5%9F%8E%E3%83%B6%E5%B4%8E%E8%8E%89%E5%98%89\" class=\"mention hashtag\" rel=\"tag\">#<span>城ヶ崎莉嘉</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E5%B7%9D%E5%B3%B6%E7%91%9E%E6%A8%B9\" class=\"mention hashtag\" rel=\"tag\">#<span>川島瑞樹</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E3%82%A2%E3%83%8A%E3%82%B9%E3%82%BF%E3%82%B7%E3%82%A2\" class=\"mention hashtag\" rel=\"tag\">#<span>アナスタシア</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E6%96%B0%E7%94%B0%E3%81%B2%E3%82%88%E3%82%8A\" class=\"mention hashtag\" rel=\"tag\">#<span>新田ひより</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E6%A3%AE%E4%B8%8B%E6%9D%A5%E5%A5%88\" class=\"mention hashtag\" rel=\"tag\">#<span>森下来奈</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E5%B1%B1%E6%9C%AC%E5%B8%8C%E6%9C%9B\" class=\"mention hashtag\" rel=\"tag\">#<span>山本希望</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E6%9D%B1%E5%B1%B1%E5%A5%88%E5%A4%AE\" class=\"mention hashtag\" rel=\"tag\">#<span>東山奈央</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/%E4%B8%8A%E5%9D%82%E3%81%99%E3%81%BF%E3%82%8C\" class=\"mention hashtag\" rel=\"tag\">#<span>上坂すみれ</span></a></p>",
"contentMap": {
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"name": "#アイドルマスター"
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{
"type": "Hashtag",
"href": "https://rss-mstdn.studiofreesia.com/tags/%E3%82%A2%E3%82%A4%E3%83%9E%E3%82%B9",
"name": "#アイマス"
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{
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"href": "https://rss-mstdn.studiofreesia.com/tags/the_idolm_ster",
"name": "#the_idolm_ster"
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{
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"href": "https://rss-mstdn.studiofreesia.com/tags/cinderella_girls",
"name": "#cinderella_girls"
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{
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"href": "https://rss-mstdn.studiofreesia.com/tags/%E3%82%B7%E3%83%B3%E3%83%87%E3%83%AC%E3%83%A9%E3%82%AC%E3%83%BC%E3%83%AB%E3%82%BA",
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"href": "https://rss-mstdn.studiofreesia.com/tags/%E3%83%87%E3%83%AC%E3%83%9E%E3%82%B9",
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"name": "#スターライトステージ"
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"href": "https://rss-mstdn.studiofreesia.com/tags/%E3%82%B7%E3%83%B3%E3%83%87%E3%83%AC%E3%83%A9%E3%83%9E%E3%82%B9%E3%82%BF%E3%83%BC",
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{
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"href": "https://rss-mstdn.studiofreesia.com/tags/%E4%B8%8A%E5%9D%82%E3%81%99%E3%81%BF%E3%82%8C",
"name": "#上坂すみれ"
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