JSON-LD @context

Various examples the @context property can take. See here for the W3C specification, and here for what ActivityStreams says about it.

Examples

Example 1

activity

{
  "@context": "https://www.w3.org/ns/activitystreams",
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/K9g0lXcQIBM",
  "published": "2025-09-06T13:28:00Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/hq47LIwvHEA",
    "published": "2025-09-06T13:28:00Z",
    "@context": "https://www.w3.org/ns/activitystreams",
    "content": "@context url as the ActivityStreams URL",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

hollo

{
  "id": "01991f36-5b00-7f0f-848f-8396ac9167e3",
  "created_at": "2025-09-06T13:28:00.000Z",
  "in_reply_to_id": null,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/hq47LIwvHEA",
  "url": "http://pasture-one-actor/object/hq47LIwvHEA",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "pinned": false,
  "content": "@context url as the ActivityStreams URL",
  "reblog": null,
  "quote_id": null,
  "quote": null,
  "application": null,
  "account": {
    "id": "01991f36-271d-7f6a-ad58-9763b28ce52e",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "created_at": "2025-09-06T13:27:46.665Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "avatar": "http://hollo/image/avatars/original/missing.png",
    "avatar_static": "http://hollo/image/avatars/original/missing.png",
    "header": "http://hollo/image/headers/original/missing.png",
    "header_static": "http://hollo/image/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 0,
    "moved": null,
    "last_status_at": null,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "emojis": [],
  "emoji_reactions": [],
  "poll": null,
  "filtered": null
}

Example 2

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams"
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/-Twej8q5UoM",
  "published": "2025-09-06T13:28:01Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/FZRZv3BNVKA",
    "published": "2025-09-06T13:28:01Z",
    "@context": [
      "https://www.w3.org/ns/activitystreams"
    ],
    "content": "@context url is list of ActivityStreams URL",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

hollo

{
  "id": "01991f36-5ee8-711b-99ef-f63cab6f1677",
  "created_at": "2025-09-06T13:28:01.000Z",
  "in_reply_to_id": null,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/FZRZv3BNVKA",
  "url": "http://pasture-one-actor/object/FZRZv3BNVKA",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "pinned": false,
  "content": "@context url is list of ActivityStreams URL",
  "reblog": null,
  "quote_id": null,
  "quote": null,
  "application": null,
  "account": {
    "id": "01991f36-271d-7f6a-ad58-9763b28ce52e",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "created_at": "2025-09-06T13:27:46.665Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "avatar": "http://hollo/image/avatars/original/missing.png",
    "avatar_static": "http://hollo/image/avatars/original/missing.png",
    "header": "http://hollo/image/headers/original/missing.png",
    "header_static": "http://hollo/image/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 0,
    "moved": null,
    "last_status_at": null,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "emojis": [],
  "emoji_reactions": [],
  "poll": null,
  "filtered": null
}

Example 3

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/HfqKsIs0p3Y",
  "published": "2025-09-06T13:28:01Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/5cT9dBhV5es",
    "published": "2025-09-06T13:28:01Z",
    "@context": [
      "https://www.w3.org/ns/activitystreams",
      {
        "Hashtag": "as:Hashtag"
      }
    ],
    "content": "@context url is list of ActivityStreams URL and Hashtag",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

hollo

{
  "id": "01991f36-5ee8-711b-99ef-f63d229da6d4",
  "created_at": "2025-09-06T13:28:01.000Z",
  "in_reply_to_id": null,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/5cT9dBhV5es",
  "url": "http://pasture-one-actor/object/5cT9dBhV5es",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "pinned": false,
  "content": "@context url is list of ActivityStreams URL and Hashtag",
  "reblog": null,
  "quote_id": null,
  "quote": null,
  "application": null,
  "account": {
    "id": "01991f36-271d-7f6a-ad58-9763b28ce52e",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "created_at": "2025-09-06T13:27:46.665Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "avatar": "http://hollo/image/avatars/original/missing.png",
    "avatar_static": "http://hollo/image/avatars/original/missing.png",
    "header": "http://hollo/image/headers/original/missing.png",
    "header_static": "http://hollo/image/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 0,
    "moved": null,
    "last_status_at": null,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "emojis": [],
  "emoji_reactions": [],
  "poll": null,
  "filtered": null
}

Example 4

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    "https://w3id.org/fep/5711"
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/8eRF3_jHF0I",
  "published": "2025-09-06T13:28:02Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/vDy-J6xP-CE",
    "published": "2025-09-06T13:28:02Z",
    "@context": [
      "https://www.w3.org/ns/activitystreams",
      "https://w3id.org/fep/5711"
    ],
    "content": "@context with ActivityStreams URL + w3id-fep document",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

hollo

{
  "id": "01991f36-62d0-7f28-ba38-c0faa21927c9",
  "created_at": "2025-09-06T13:28:02.000Z",
  "in_reply_to_id": null,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/vDy-J6xP-CE",
  "url": "http://pasture-one-actor/object/vDy-J6xP-CE",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "pinned": false,
  "content": "@context with ActivityStreams URL + w3id-fep document",
  "reblog": null,
  "quote_id": null,
  "quote": null,
  "application": null,
  "account": {
    "id": "01991f36-271d-7f6a-ad58-9763b28ce52e",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "created_at": "2025-09-06T13:27:46.665Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "avatar": "http://hollo/image/avatars/original/missing.png",
    "avatar_static": "http://hollo/image/avatars/original/missing.png",
    "header": "http://hollo/image/headers/original/missing.png",
    "header_static": "http://hollo/image/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 0,
    "moved": null,
    "last_status_at": null,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "emojis": [],
  "emoji_reactions": [],
  "poll": null,
  "filtered": null
}

Example 5

activity

{
  "@context": null,
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/XlWWnBGK4OI",
  "published": "2025-09-06T13:28:07Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/aeVnmHuJ-T8",
    "published": "2025-09-06T13:28:07Z",
    "@context": null,
    "content": "no @context",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result

Example 6

activity

{
  "@context": "http://strange.example/context",
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/Ysj_OA1H4nY",
  "published": "2025-09-06T13:28:19Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/wiscNt6lFOE",
    "published": "2025-09-06T13:28:19Z",
    "@context": "http://strange.example/context",
    "content": "@context is a broken url",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result