Mentions¶
Mentions are discussed in this section of ActivityStreams.
The big difference on if mentions are parsed are currently
a result of if the value in href can be resolved by the
application being tested.
In the support table parsed means that the activity could be parsed, but the mention was discarded.
A ❌ in the support table means that the entire message has failed to parse.
Examples¶
Example 1¶
activity
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive"
}
],
"type": "Create",
"actor": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/activity/OBEVQjFXsLU",
"published": "2025-09-09T11:49:28Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/object/nleULew1TJo",
"published": "2025-09-09T11:49:28Z",
"content": "basic mention; mention as list of dictionaries",
"tag": [
{
"type": "Mention",
"name": "@actor@test_server",
"href": "http://pasture-one-actor/actor"
}
]
}
}
misskey
{
"id": "acg1yb0gvoex003i",
"createdAt": "2025-09-09T11:49:28.000Z",
"userId": "acg1vki1voex0003",
"user": {
"id": "acg1vki1voex0003",
"name": "Test Actor",
"username": "actor",
"host": "pasture-one-actor",
"avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
"avatarBlurhash": null,
"avatarDecorations": [],
"isBot": false,
"isCat": false,
"instance": {
"name": null,
"softwareName": null,
"softwareVersion": null,
"iconUrl": null,
"faviconUrl": null,
"themeColor": null
},
"emojis": {},
"onlineStatus": "unknown"
},
"text": "basic mention; mention as list of dictionaries",
"cw": null,
"visibility": "public",
"localOnly": false,
"reactionAcceptance": null,
"renoteCount": 0,
"repliesCount": 0,
"reactionCount": 0,
"reactions": {},
"reactionEmojis": {},
"emojis": {},
"fileIds": [],
"files": [],
"replyId": null,
"renoteId": null,
"mentions": [
"acg1vki1voex0003"
],
"uri": "http://pasture-one-actor/object/nleULew1TJo",
"clippedCount": 0
}
Example 2¶
activity
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive"
}
],
"type": "Create",
"actor": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/activity/d3JyDiomlXA",
"published": "2025-09-09T11:49:28Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/object/Rpkc--N7SAc",
"published": "2025-09-09T11:49:28Z",
"content": "text @actor@pasture-one-actor; mention as dictionary",
"tag": {
"type": "Mention",
"name": "@actor@test_server",
"href": "http://pasture-one-actor/actor"
}
}
}
misskey
{
"id": "acg1yb0gvoex003j",
"createdAt": "2025-09-09T11:49:28.000Z",
"userId": "acg1vki1voex0003",
"user": {
"id": "acg1vki1voex0003",
"name": "Test Actor",
"username": "actor",
"host": "pasture-one-actor",
"avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
"avatarBlurhash": null,
"avatarDecorations": [],
"isBot": false,
"isCat": false,
"instance": {
"name": null,
"softwareName": null,
"softwareVersion": null,
"iconUrl": null,
"faviconUrl": null,
"themeColor": null
},
"emojis": {},
"onlineStatus": "unknown"
},
"text": "text @actor@pasture-one-actor; mention as dictionary",
"cw": null,
"visibility": "public",
"localOnly": false,
"reactionAcceptance": null,
"renoteCount": 0,
"repliesCount": 0,
"reactionCount": 0,
"reactions": {},
"reactionEmojis": {},
"emojis": {},
"fileIds": [],
"files": [],
"replyId": null,
"renoteId": null,
"mentions": [
"acg1vki1voex0003"
],
"uri": "http://pasture-one-actor/object/Rpkc--N7SAc",
"clippedCount": 0
}
Example 3¶
activity
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive"
}
],
"type": "Create",
"actor": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/activity/PAdALS3VLg8",
"published": "2025-09-09T11:49:29Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/object/R06q15IefOA",
"published": "2025-09-09T11:49:29Z",
"content": "unrelated text",
"tag": {
"type": "Mention",
"name": "something something",
"href": "http://pasture-one-actor/actor"
}
}
}
misskey
{
"id": "acg1ybs8voex003k",
"createdAt": "2025-09-09T11:49:29.000Z",
"userId": "acg1vki1voex0003",
"user": {
"id": "acg1vki1voex0003",
"name": "Test Actor",
"username": "actor",
"host": "pasture-one-actor",
"avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
"avatarBlurhash": null,
"avatarDecorations": [],
"isBot": false,
"isCat": false,
"instance": {
"name": null,
"softwareName": null,
"softwareVersion": null,
"iconUrl": null,
"faviconUrl": null,
"themeColor": null
},
"emojis": {},
"onlineStatus": "unknown"
},
"text": "unrelated text",
"cw": null,
"visibility": "public",
"localOnly": false,
"reactionAcceptance": null,
"renoteCount": 0,
"repliesCount": 0,
"reactionCount": 0,
"reactions": {},
"reactionEmojis": {},
"emojis": {},
"fileIds": [],
"files": [],
"replyId": null,
"renoteId": null,
"mentions": [
"acg1vki1voex0003"
],
"uri": "http://pasture-one-actor/object/R06q15IefOA",
"clippedCount": 0
}
Example 4¶
activity
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive"
}
],
"type": "Create",
"actor": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/activity/wt-WkSMsfY0",
"published": "2025-09-09T11:49:30Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/object/XO0OiL8TpKc",
"published": "2025-09-09T11:49:30Z",
"content": "Missing Name @actor@pasture-one-actor",
"tag": {
"type": "Mention",
"href": "http://pasture-one-actor/actor"
}
}
}
misskey
{
"id": "acg1yck0voex003l",
"createdAt": "2025-09-09T11:49:30.000Z",
"userId": "acg1vki1voex0003",
"user": {
"id": "acg1vki1voex0003",
"name": "Test Actor",
"username": "actor",
"host": "pasture-one-actor",
"avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
"avatarBlurhash": null,
"avatarDecorations": [],
"isBot": false,
"isCat": false,
"instance": {
"name": null,
"softwareName": null,
"softwareVersion": null,
"iconUrl": null,
"faviconUrl": null,
"themeColor": null
},
"emojis": {},
"onlineStatus": "unknown"
},
"text": "Missing Name @actor@pasture-one-actor",
"cw": null,
"visibility": "public",
"localOnly": false,
"reactionAcceptance": null,
"renoteCount": 0,
"repliesCount": 0,
"reactionCount": 0,
"reactions": {},
"reactionEmojis": {},
"emojis": {},
"fileIds": [],
"files": [],
"replyId": null,
"renoteId": null,
"mentions": [
"acg1vki1voex0003"
],
"uri": "http://pasture-one-actor/object/XO0OiL8TpKc",
"clippedCount": 0
}
Example 5¶
activity
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive"
}
],
"type": "Create",
"actor": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/activity/L_iEq8KhXgQ",
"published": "2025-09-09T11:49:30Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/object/gmuI_HeMbIw",
"published": "2025-09-09T11:49:30Z",
"content": "realworld url",
"tag": {
"type": "Mention",
"name": "@the_milkman@mastodon.social",
"href": "https://mastodon.social/users/the_milkman"
}
}
}
misskey
{
"id": "acg1yck0voex003o",
"createdAt": "2025-09-09T11:49:30.000Z",
"userId": "acg1vki1voex0003",
"user": {
"id": "acg1vki1voex0003",
"name": "Test Actor",
"username": "actor",
"host": "pasture-one-actor",
"avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
"avatarBlurhash": null,
"avatarDecorations": [],
"isBot": false,
"isCat": false,
"instance": {
"name": null,
"softwareName": null,
"softwareVersion": null,
"iconUrl": null,
"faviconUrl": null,
"themeColor": null
},
"emojis": {},
"onlineStatus": "unknown"
},
"text": "realworld url",
"cw": null,
"visibility": "public",
"localOnly": false,
"reactionAcceptance": null,
"renoteCount": 0,
"repliesCount": 0,
"reactionCount": 0,
"reactions": {},
"reactionEmojis": {},
"emojis": {},
"fileIds": [],
"files": [],
"replyId": null,
"renoteId": null,
"mentions": [
"acg1ydqfvoex003m"
],
"uri": "http://pasture-one-actor/object/gmuI_HeMbIw",
"clippedCount": 0
}
Example 6¶
activity
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive"
}
],
"type": "Create",
"actor": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/activity/i-8waetuWiw",
"published": "2025-09-09T11:49:31Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/object/se8ra8lXyJ4",
"published": "2025-09-09T11:49:31Z",
"content": "unresolvable url -- https",
"tag": {
"type": "Mention",
"name": "@dummy@example",
"href": "https://dummy.example"
}
}
}
misskey
{
"id": "acg1ydbsvoex003p",
"createdAt": "2025-09-09T11:49:31.000Z",
"userId": "acg1vki1voex0003",
"user": {
"id": "acg1vki1voex0003",
"name": "Test Actor",
"username": "actor",
"host": "pasture-one-actor",
"avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
"avatarBlurhash": null,
"avatarDecorations": [],
"isBot": false,
"isCat": false,
"instance": {
"name": null,
"softwareName": null,
"softwareVersion": null,
"iconUrl": null,
"faviconUrl": null,
"themeColor": null
},
"emojis": {},
"onlineStatus": "unknown"
},
"text": "unresolvable url -- https",
"cw": null,
"visibility": "public",
"localOnly": false,
"reactionAcceptance": null,
"renoteCount": 0,
"repliesCount": 0,
"reactionCount": 0,
"reactions": {},
"reactionEmojis": {},
"emojis": {},
"fileIds": [],
"files": [],
"replyId": null,
"renoteId": null,
"uri": "http://pasture-one-actor/object/se8ra8lXyJ4",
"clippedCount": 0
}
Example 7¶
activity
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive"
}
],
"type": "Create",
"actor": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/activity/Q19bPR-Z9bc",
"published": "2025-09-09T11:49:32Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/object/eAzYldeFHbg",
"published": "2025-09-09T11:49:32Z",
"content": "texunresolvable url -- http",
"tag": {
"type": "Mention",
"name": "@test_actor@test_server",
"href": "http://test_actor"
}
}
}
misskey
{
"id": "acg1ye3kvoex003q",
"createdAt": "2025-09-09T11:49:32.000Z",
"userId": "acg1vki1voex0003",
"user": {
"id": "acg1vki1voex0003",
"name": "Test Actor",
"username": "actor",
"host": "pasture-one-actor",
"avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
"avatarBlurhash": null,
"avatarDecorations": [],
"isBot": false,
"isCat": false,
"instance": {
"name": null,
"softwareName": null,
"softwareVersion": null,
"iconUrl": null,
"faviconUrl": null,
"themeColor": null
},
"emojis": {},
"onlineStatus": "unknown"
},
"text": "texunresolvable url -- http",
"cw": null,
"visibility": "public",
"localOnly": false,
"reactionAcceptance": null,
"renoteCount": 0,
"repliesCount": 0,
"reactionCount": 0,
"reactions": {},
"reactionEmojis": {},
"emojis": {},
"fileIds": [],
"files": [],
"replyId": null,
"renoteId": null,
"uri": "http://pasture-one-actor/object/eAzYldeFHbg",
"clippedCount": 0
}
Example 8¶
activity
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive"
}
],
"type": "Create",
"actor": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/activity/hZsraP8gDCU",
"published": "2025-09-09T11:49:33Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/object/USBASiZQXNY",
"published": "2025-09-09T11:49:33Z",
"content": "name is 'yay'",
"tag": {
"type": "as:Mention",
"name": "yay",
"href": "http://pasture-one-actor/actor"
}
}
}
misskey
{
"id": "acg1yevcvoex003r",
"createdAt": "2025-09-09T11:49:33.000Z",
"userId": "acg1vki1voex0003",
"user": {
"id": "acg1vki1voex0003",
"name": "Test Actor",
"username": "actor",
"host": "pasture-one-actor",
"avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
"avatarBlurhash": null,
"avatarDecorations": [],
"isBot": false,
"isCat": false,
"instance": {
"name": null,
"softwareName": null,
"softwareVersion": null,
"iconUrl": null,
"faviconUrl": null,
"themeColor": null
},
"emojis": {},
"onlineStatus": "unknown"
},
"text": "name is 'yay'",
"cw": null,
"visibility": "public",
"localOnly": false,
"reactionAcceptance": null,
"renoteCount": 0,
"repliesCount": 0,
"reactionCount": 0,
"reactions": {},
"reactionEmojis": {},
"emojis": {},
"fileIds": [],
"files": [],
"replyId": null,
"renoteId": null,
"uri": "http://pasture-one-actor/object/USBASiZQXNY",
"clippedCount": 0
}
Example 9¶
activity
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive"
}
],
"type": "Create",
"actor": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/activity/aUwRjpLKR5U",
"published": "2025-09-09T11:49:33Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/object/lDF1hVIYjTM",
"published": "2025-09-09T11:49:33Z",
"content": "@actor text",
"tag": {
"name": "@actor",
"href": "http://pasture-one-actor/actor"
}
}
}
misskey
{
"id": "acg1yevcvoex003s",
"createdAt": "2025-09-09T11:49:33.000Z",
"userId": "acg1vki1voex0003",
"user": {
"id": "acg1vki1voex0003",
"name": "Test Actor",
"username": "actor",
"host": "pasture-one-actor",
"avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
"avatarBlurhash": null,
"avatarDecorations": [],
"isBot": false,
"isCat": false,
"instance": {
"name": null,
"softwareName": null,
"softwareVersion": null,
"iconUrl": null,
"faviconUrl": null,
"themeColor": null
},
"emojis": {},
"onlineStatus": "unknown"
},
"text": "@actor text",
"cw": null,
"visibility": "public",
"localOnly": false,
"reactionAcceptance": null,
"renoteCount": 0,
"repliesCount": 0,
"reactionCount": 0,
"reactions": {},
"reactionEmojis": {},
"emojis": {},
"fileIds": [],
"files": [],
"replyId": null,
"renoteId": null,
"uri": "http://pasture-one-actor/object/lDF1hVIYjTM",
"clippedCount": 0
}
Example 10¶
activity
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive"
}
],
"type": "Create",
"actor": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/activity/Lhjy5sL83rw",
"published": "2025-09-09T11:49:34Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://misskey/users/acg1try90vrs0003"
],
"id": "http://pasture-one-actor/object/pdibKy4uZFA",
"published": "2025-09-09T11:49:34Z",
"content": "duplicate mention, see https://codeberg.org/funfedidev/fediverse-pasture-inputs/issues/75",
"tag": [
{
"type": "Mention",
"name": "@actor@test_server",
"href": "http://pasture-one-actor/actor"
},
{
"type": "Mention",
"name": "@actor@test_server",
"href": "http://pasture-one-actor/actor"
}
]
}
}
misskey
{
"id": "acg1yfn4voex003t",
"createdAt": "2025-09-09T11:49:34.000Z",
"userId": "acg1vki1voex0003",
"user": {
"id": "acg1vki1voex0003",
"name": "Test Actor",
"username": "actor",
"host": "pasture-one-actor",
"avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
"avatarBlurhash": null,
"avatarDecorations": [],
"isBot": false,
"isCat": false,
"instance": {
"name": null,
"softwareName": null,
"softwareVersion": null,
"iconUrl": null,
"faviconUrl": null,
"themeColor": null
},
"emojis": {},
"onlineStatus": "unknown"
},
"text": "duplicate mention, see https://codeberg.org/funfedidev/fediverse-pasture-inputs/issues/75",
"cw": null,
"visibility": "public",
"localOnly": false,
"reactionAcceptance": null,
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