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://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/V-HBDAJlGhU",
"published": "2025-07-10T16:25:57Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/RX-P_ViVWDQ",
"published": "2025-07-10T16:25:57Z",
"content": "basic mention; mention as list of dictionaries",
"tag": [
{
"type": "Mention",
"name": "@actor@test_server",
"href": "http://pasture-one-actor/actor"
}
]
}
}
mastodon
{
"id": "114829869584605339",
"created_at": "2025-07-10T16:25:57.000Z",
"in_reply_to_id": null,
"in_reply_to_account_id": null,
"sensitive": false,
"spoiler_text": "",
"visibility": "public",
"language": null,
"uri": "http://pasture-one-actor/actor/RX-P_ViVWDQ",
"url": "http://pasture-one-actor/actor/RX-P_ViVWDQ",
"replies_count": 0,
"reblogs_count": 0,
"favourites_count": 0,
"edited_at": null,
"favourited": false,
"reblogged": false,
"muted": false,
"bookmarked": false,
"content": "basic mention; mention as list of dictionaries",
"filtered": [],
"reblog": null,
"account": {
"id": "114829860566519273",
"username": "actor",
"acct": "actor@pasture-one-actor",
"display_name": "Test Actor",
"locked": false,
"bot": false,
"discoverable": false,
"indexable": false,
"group": false,
"created_at": "2025-07-10T00:00:00.000Z",
"note": "",
"url": "http://pasture-one-actor/actor",
"uri": "http://pasture-one-actor/actor",
"avatar": "http://mastodon/avatars/original/missing.png",
"avatar_static": "http://mastodon/avatars/original/missing.png",
"header": "http://mastodon/headers/original/missing.png",
"header_static": "http://mastodon/headers/original/missing.png",
"followers_count": 0,
"following_count": 0,
"statuses_count": 69,
"last_status_at": "2025-07-10",
"hide_collections": true,
"emojis": [],
"fields": []
},
"media_attachments": [],
"mentions": [
{
"id": "114829860566519273",
"username": "actor",
"url": "http://pasture-one-actor/actor",
"acct": "actor@pasture-one-actor"
}
],
"tags": [],
"emojis": [],
"quote": null,
"card": null,
"poll": null
}
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://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/UTrRik7L1RM",
"published": "2025-07-10T16:25:58Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/9gEJsAIE1QU",
"published": "2025-07-10T16:25:58Z",
"content": "text @actor@pasture-one-actor; mention as dictionary",
"tag": {
"type": "Mention",
"name": "@actor@test_server",
"href": "http://pasture-one-actor/actor"
}
}
}
mastodon
{
"id": "114829869651643228",
"created_at": "2025-07-10T16:25:58.000Z",
"in_reply_to_id": null,
"in_reply_to_account_id": null,
"sensitive": false,
"spoiler_text": "",
"visibility": "public",
"language": null,
"uri": "http://pasture-one-actor/actor/9gEJsAIE1QU",
"url": "http://pasture-one-actor/actor/9gEJsAIE1QU",
"replies_count": 0,
"reblogs_count": 0,
"favourites_count": 0,
"edited_at": null,
"favourited": false,
"reblogged": false,
"muted": false,
"bookmarked": false,
"content": "text @actor@pasture-one-actor; mention as dictionary",
"filtered": [],
"reblog": null,
"account": {
"id": "114829860566519273",
"username": "actor",
"acct": "actor@pasture-one-actor",
"display_name": "Test Actor",
"locked": false,
"bot": false,
"discoverable": false,
"indexable": false,
"group": false,
"created_at": "2025-07-10T00:00:00.000Z",
"note": "",
"url": "http://pasture-one-actor/actor",
"uri": "http://pasture-one-actor/actor",
"avatar": "http://mastodon/avatars/original/missing.png",
"avatar_static": "http://mastodon/avatars/original/missing.png",
"header": "http://mastodon/headers/original/missing.png",
"header_static": "http://mastodon/headers/original/missing.png",
"followers_count": 0,
"following_count": 0,
"statuses_count": 70,
"last_status_at": "2025-07-10",
"hide_collections": true,
"emojis": [],
"fields": []
},
"media_attachments": [],
"mentions": [
{
"id": "114829860566519273",
"username": "actor",
"url": "http://pasture-one-actor/actor",
"acct": "actor@pasture-one-actor"
}
],
"tags": [],
"emojis": [],
"quote": null,
"card": null,
"poll": null
}
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://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/XCgzOZT4QKw",
"published": "2025-07-10T16:25:59Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/NyAcOtzs0as",
"published": "2025-07-10T16:25:59Z",
"content": "unrelated text",
"tag": {
"type": "Mention",
"name": "something something",
"href": "http://pasture-one-actor/actor"
}
}
}
mastodon
{
"id": "114829869716817955",
"created_at": "2025-07-10T16:25:59.000Z",
"in_reply_to_id": null,
"in_reply_to_account_id": null,
"sensitive": false,
"spoiler_text": "",
"visibility": "public",
"language": null,
"uri": "http://pasture-one-actor/actor/NyAcOtzs0as",
"url": "http://pasture-one-actor/actor/NyAcOtzs0as",
"replies_count": 0,
"reblogs_count": 0,
"favourites_count": 0,
"edited_at": null,
"favourited": false,
"reblogged": false,
"muted": false,
"bookmarked": false,
"content": "unrelated text",
"filtered": [],
"reblog": null,
"account": {
"id": "114829860566519273",
"username": "actor",
"acct": "actor@pasture-one-actor",
"display_name": "Test Actor",
"locked": false,
"bot": false,
"discoverable": false,
"indexable": false,
"group": false,
"created_at": "2025-07-10T00:00:00.000Z",
"note": "",
"url": "http://pasture-one-actor/actor",
"uri": "http://pasture-one-actor/actor",
"avatar": "http://mastodon/avatars/original/missing.png",
"avatar_static": "http://mastodon/avatars/original/missing.png",
"header": "http://mastodon/headers/original/missing.png",
"header_static": "http://mastodon/headers/original/missing.png",
"followers_count": 0,
"following_count": 0,
"statuses_count": 71,
"last_status_at": "2025-07-10",
"hide_collections": true,
"emojis": [],
"fields": []
},
"media_attachments": [],
"mentions": [
{
"id": "114829860566519273",
"username": "actor",
"url": "http://pasture-one-actor/actor",
"acct": "actor@pasture-one-actor"
}
],
"tags": [],
"emojis": [],
"quote": null,
"card": null,
"poll": null
}
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://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/M7ldqSwx_Zo",
"published": "2025-07-10T16:26:00Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/269J6eBCdpk",
"published": "2025-07-10T16:26:00Z",
"content": "Missing Name @actor@pasture-one-actor",
"tag": {
"type": "Mention",
"href": "http://pasture-one-actor/actor"
}
}
}
mastodon
{
"id": "114829869782924862",
"created_at": "2025-07-10T16:26:00.000Z",
"in_reply_to_id": null,
"in_reply_to_account_id": null,
"sensitive": false,
"spoiler_text": "",
"visibility": "public",
"language": null,
"uri": "http://pasture-one-actor/actor/269J6eBCdpk",
"url": "http://pasture-one-actor/actor/269J6eBCdpk",
"replies_count": 0,
"reblogs_count": 0,
"favourites_count": 0,
"edited_at": null,
"favourited": false,
"reblogged": false,
"muted": false,
"bookmarked": false,
"content": "Missing Name @actor@pasture-one-actor",
"filtered": [],
"reblog": null,
"account": {
"id": "114829860566519273",
"username": "actor",
"acct": "actor@pasture-one-actor",
"display_name": "Test Actor",
"locked": false,
"bot": false,
"discoverable": false,
"indexable": false,
"group": false,
"created_at": "2025-07-10T00:00:00.000Z",
"note": "",
"url": "http://pasture-one-actor/actor",
"uri": "http://pasture-one-actor/actor",
"avatar": "http://mastodon/avatars/original/missing.png",
"avatar_static": "http://mastodon/avatars/original/missing.png",
"header": "http://mastodon/headers/original/missing.png",
"header_static": "http://mastodon/headers/original/missing.png",
"followers_count": 0,
"following_count": 0,
"statuses_count": 72,
"last_status_at": "2025-07-10",
"hide_collections": true,
"emojis": [],
"fields": []
},
"media_attachments": [],
"mentions": [
{
"id": "114829860566519273",
"username": "actor",
"url": "http://pasture-one-actor/actor",
"acct": "actor@pasture-one-actor"
}
],
"tags": [],
"emojis": [],
"quote": null,
"card": null,
"poll": null
}
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://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/W9BWxpnvBaA",
"published": "2025-07-10T16:26:01Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/xRI45--7thc",
"published": "2025-07-10T16:26:01Z",
"content": "text",
"tag": {
"type": "Mention",
"name": "@the_milkman@mastodon.social",
"href": "https://mastodon.social/users/the_milkman"
}
}
}
mastodon
{
"id": "114829869947943351",
"created_at": "2025-07-10T16:26:01.000Z",
"in_reply_to_id": null,
"in_reply_to_account_id": null,
"sensitive": false,
"spoiler_text": "",
"visibility": "public",
"language": null,
"uri": "http://pasture-one-actor/actor/xRI45--7thc",
"url": "http://pasture-one-actor/actor/xRI45--7thc",
"replies_count": 0,
"reblogs_count": 0,
"favourites_count": 0,
"edited_at": null,
"favourited": false,
"reblogged": false,
"muted": false,
"bookmarked": false,
"content": "text",
"filtered": [],
"reblog": null,
"account": {
"id": "114829860566519273",
"username": "actor",
"acct": "actor@pasture-one-actor",
"display_name": "Test Actor",
"locked": false,
"bot": false,
"discoverable": false,
"indexable": false,
"group": false,
"created_at": "2025-07-10T00:00:00.000Z",
"note": "",
"url": "http://pasture-one-actor/actor",
"uri": "http://pasture-one-actor/actor",
"avatar": "http://mastodon/avatars/original/missing.png",
"avatar_static": "http://mastodon/avatars/original/missing.png",
"header": "http://mastodon/headers/original/missing.png",
"header_static": "http://mastodon/headers/original/missing.png",
"followers_count": 0,
"following_count": 0,
"statuses_count": 73,
"last_status_at": "2025-07-10",
"hide_collections": true,
"emojis": [],
"fields": []
},
"media_attachments": [],
"mentions": [
{
"id": "114829869896152761",
"username": "the_milkman",
"url": "https://mastodon.social/@the_milkman",
"acct": "the_milkman@mastodon.social"
}
],
"tags": [],
"emojis": [],
"quote": null,
"card": null,
"poll": null
}
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://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/6DubWoodI0c",
"published": "2025-07-10T16:26:04Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/TJp1HuQJdoE",
"published": "2025-07-10T16:26:04Z",
"content": "text",
"tag": {
"type": "Mention",
"name": "@dummy@example",
"href": "https://dummy.example"
}
}
}
mastodon
{
"id": "114829870021150510",
"created_at": "2025-07-10T16:26:04.000Z",
"in_reply_to_id": null,
"in_reply_to_account_id": null,
"sensitive": false,
"spoiler_text": "",
"visibility": "public",
"language": null,
"uri": "http://pasture-one-actor/actor/TJp1HuQJdoE",
"url": "http://pasture-one-actor/actor/TJp1HuQJdoE",
"replies_count": 0,
"reblogs_count": 0,
"favourites_count": 0,
"edited_at": null,
"favourited": false,
"reblogged": false,
"muted": false,
"bookmarked": false,
"content": "text",
"filtered": [],
"reblog": null,
"account": {
"id": "114829860566519273",
"username": "actor",
"acct": "actor@pasture-one-actor",
"display_name": "Test Actor",
"locked": false,
"bot": false,
"discoverable": false,
"indexable": false,
"group": false,
"created_at": "2025-07-10T00:00:00.000Z",
"note": "",
"url": "http://pasture-one-actor/actor",
"uri": "http://pasture-one-actor/actor",
"avatar": "http://mastodon/avatars/original/missing.png",
"avatar_static": "http://mastodon/avatars/original/missing.png",
"header": "http://mastodon/headers/original/missing.png",
"header_static": "http://mastodon/headers/original/missing.png",
"followers_count": 0,
"following_count": 0,
"statuses_count": 74,
"last_status_at": "2025-07-10",
"hide_collections": true,
"emojis": [],
"fields": []
},
"media_attachments": [],
"mentions": [],
"tags": [],
"emojis": [],
"quote": null,
"card": null,
"poll": null
}
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://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/l1U5jDZ2MX8",
"published": "2025-07-10T16:26:05Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/jho8fhb1tBg",
"published": "2025-07-10T16:26:05Z",
"content": "text",
"tag": {
"type": "Mention",
"name": "@test_actor@test_server",
"href": "http://test_actor"
}
}
}
mastodon
{
"id": "114829870083823289",
"created_at": "2025-07-10T16:26:05.000Z",
"in_reply_to_id": null,
"in_reply_to_account_id": null,
"sensitive": false,
"spoiler_text": "",
"visibility": "public",
"language": null,
"uri": "http://pasture-one-actor/actor/jho8fhb1tBg",
"url": "http://pasture-one-actor/actor/jho8fhb1tBg",
"replies_count": 0,
"reblogs_count": 0,
"favourites_count": 0,
"edited_at": null,
"favourited": false,
"reblogged": false,
"muted": false,
"bookmarked": false,
"content": "text",
"filtered": [],
"reblog": null,
"account": {
"id": "114829860566519273",
"username": "actor",
"acct": "actor@pasture-one-actor",
"display_name": "Test Actor",
"locked": false,
"bot": false,
"discoverable": false,
"indexable": false,
"group": false,
"created_at": "2025-07-10T00:00:00.000Z",
"note": "",
"url": "http://pasture-one-actor/actor",
"uri": "http://pasture-one-actor/actor",
"avatar": "http://mastodon/avatars/original/missing.png",
"avatar_static": "http://mastodon/avatars/original/missing.png",
"header": "http://mastodon/headers/original/missing.png",
"header_static": "http://mastodon/headers/original/missing.png",
"followers_count": 0,
"following_count": 0,
"statuses_count": 75,
"last_status_at": "2025-07-10",
"hide_collections": true,
"emojis": [],
"fields": []
},
"media_attachments": [],
"mentions": [],
"tags": [],
"emojis": [],
"quote": null,
"card": null,
"poll": null
}
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://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/Pg6RWF480bc",
"published": "2025-07-10T16:26:06Z",
"object": {
"type": "Note",
"attributedTo": "http://pasture-one-actor/actor",
"to": [
"https://www.w3.org/ns/activitystreams#Public",
"http://mastodon/users/hippo"
],
"id": "http://pasture-one-actor/actor/tdeJT-Gr0gY",
"published": "2025-07-10T16:26:06Z",
"content": "text",
"tag": {
"type": "as:Mention",
"name": "yay",
"href": "http://pasture-one-actor/actor"
}
}
}
mastodon
{
"id": "114829870154415305",
"created_at": "2025-07-10T16:26:06.000Z",
"in_reply_to_id": null,
"in_reply_to_account_id": null,
"sensitive": false,
"spoiler_text": "",
"visibility": "public",
"language": null,
"uri": "http://pasture-one-actor/actor/tdeJT-Gr0gY",
"url": "http://pasture-one-actor/actor/tdeJT-Gr0gY",
"replies_count": 0,
"reblogs_count": 0,
"favourites_count": 0,
"edited_at": null,
"favourited": false,
"reblogged": false,
"muted": false,
"bookmarked": false,
"content": "text",
"filtered": [],
"reblog": null,
"account": {
"id": "114829860566519273",
"username": "actor",
"acct": "actor@pasture-one-actor",
"display_name": "Test Actor",
"locked": false,
"bot": false,
"discoverable": false,
"indexable": false,
"group": false,
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