Knowledge Management REST API

  • 릴리스 버전: Australia
  • 업데이트 날짜 2026년 03월 12일
  • 소요 시간: 62분

    • The Knowledge Management API provides endpoints for searching, viewing, and fetching lists of the most-viewed and featured knowledge articles.

    You can only use this API when the Knowledge API (sn_km_api) plugin is activated. The Knowledge Management REST API was originally released in Orlando using the Knowledge API app available in the ServiceNow Store.

    주:
    The Knowledge Management REST API is publicly accessible and makes any knowledge base that is publicly accessible available to all users, including unauthenticated users. For version 1.0.1 and later, the API was made editable, allowing admins to configure each endpoint to disallow unauthenticated access by selecting the Requires Authentication flag on the Scripted REST Service Security tab associated with the API.

    To enable other domains to use Knowledge Management REST API endpoints, define a Cross-Origin Resource Sharing (CORS) rule. For more information, see Define a CORS rule.

    To view an article from the scoped knowledge base using this REST API, allow the sn_km_api scope read access from the requesting scope in the Restricted Caller Access Privileges [sys_restricted_caller_access] table. For more information, see Define cross-scope access to an application resource.

    By default, this API has a rate limit of 500 per hour for unauthenticated and snc_external users. For more information about rate limiting, see Inbound REST API rate limiting.

    Knowledge Management - GET /knowledge/articles

    Returns a list of knowledge base (KB) articles which can be searched and filtered using various parameters.

    URL format

    Versioned URL: /api/sn_km_api/{api_version}/knowledge/articles

    Default URL: /api/sn_km_api/knowledge/articles

    주:
    Available versions are specified in the REST API Explorer. For scripted REST APIs there is additional version information on the Scripted REST Service form.

    Supported request parameters

    표 1. Path parameters
    Name Description
    api_version Optional. Version of the endpoint to access. For example, v1 or v2. Only specify this value to use an endpoint version other than the latest.

    Data type: String
    표 2. Query parameters
    Name Description
    filter Encoded query to use to filter the result set.

    Syntax: filter=<attr><operator><value>.

    • <attr>: Name of the table column.
    • <operator>:
      Valid values:
      • =: Exactly matches <value>.
      • !=: Does not match <value>.
      • ^: Enables you to specify more than one condition and logically AND them.
      • ^OR: Enables you to specify more than one condition and logically OR them.
      • LIKE: <attr> contains the specified string. Only works for <attr> fields whose data type is string.
      • STARTSWITH: <attr> starts with the specified string. Only works for <attr> fields whose data type is string.
      • ENDSWITH: <attr> ends with the specified string. Only works for <attr> fields whose data type is string.
    • <value>: Value to match against.

    All parameters are case-sensitive. Query can contain more than one entry, such as filter=<attr><operator><value>[<operator><attr><operator><value>].

    Data type: String

    Default: empty
    fields Comma-separated list of fields from the Knowledge [kb_knowledge] table to show details in results.

    Data type: String

    Default: None
    kb Comma-separated list of knowledge base sys_ids from the Knowledge Bases [kb_knowledge_base] table to restrict results to.

    Data type: String
    language List of comma-separated languages in two-letter ISO 639-1 language code format to restrict results to. Alternatively type 'all' to search in all valid installed languages on an instance.

    Data type: String

    Default: User's session language or en
    limit Maximum number of records to return. Unusually large limit values can impact system performance. For requests that exceed this number of records, use the offset parameter to paginate record retrieval.

    Data type: Number

    Default: 30
    offset Starting record index for which to begin retrieving records. Use this value to paginate record retrieval. This functionality enables the retrieval of all records, regardless of the number of records, in small manageable chunks.

    For example, the first time this endpoint is called, offset is set to "0". To page through all available records, use offset=offset+limit until the end of the all records is reached.

    Data type: Number

    Default: 0
    query Text to search for, can be empty.

    Data type: String
    표 3. Request body parameters (XML or JSON)
    Name Description
    None

    Headers

    The following request and response headers apply to this HTTP action only, or apply to this action in a distinct way. For a list of general headers used in the REST API, see Supported REST API headers.

    표 4. Request headers
    Header Description
    Accept Data format of the response body. Supported types: application/json or application/xml.

    Default: application/json
    표 5. Response headers
    Header Description
    None

    Status codes

    The following status codes apply to this HTTP action. For a list of possible status codes used in the REST API, see REST API HTTP response codes.

    표 6. Status codes
    Status code Description
    200 Successful. The request was successfully processed.
    401 Unauthorized. The user credentials are incorrect or have not been passed.
    500 Internal server error. An unexpected error occurred while processing the request.

    Response body parameters (JSON or XML)

    Name Description
    articles List of articles returned in response.

    Data type: Array

    "articles": [
  {
    "fields": {Object},
    "link": "String",
    "id": "String",
    "number": "String",
    "rank": Number,
    "score": Number,
    "snippet": "String",
    "title": "String"
  }
]
    articles.fields Values of requested fields, if any.

    Data type: Object

    "fields": {
  "<field_name>": {Object}
}
    articles.fields.<field_name> Lists each field requested using the fields parameter, if any.

    Data type: Object

    "<field_name>": {
  "display_value": "String",
  "label": "String",
  "name": "String",
  "type": "String",
  "value": "String"
}
    articles.fields.<field_name>.display_value Display value of the requested field.

    Data type: String
    articles.fields.<field_name>.label Label representing the requested field. For example, Knowledge.

    Data type: String
    articles.fields.<field_name>.name Name of the requested field. Matches <field_name>.

    Data type: String
    articles.fields.<field_name>.type Data type of requested field.

    Data type: String
    articles.fields.<field_name>.value Value of the requested field.

    Data type: String
    articles.id Knowledge article sys_id from the Knowledge [kb_knowledge] table.

    Data type: String
    articles.link Link to the article.

    Data type: String
    articles.number Knowledge article number.

    Data type: String
    articles.rank Search rank of article specific to this search.

    Data type: Number (Float)
    articles.snippet Text showing a small portion of the knowledge article.

    Data type: String
    articles.score Relevancy score, results sorted in descending order by score.

    Data type: String
    articles.title Short description or title of the knowledge article.

    Data type: String
    meta Meta information of the results and request parameters.

    Data type: Object

    "meta": {
  "count": Number,
  "end": Number,
  "fields": "String",
  "filter": "String",
  "kb": "String",
  "language": "String",
  "query": "String",
  "start": Number,
  "status": {Object},
  "ts_query_id": "String"
}
    meta.count Number of available KB articles.

    Data type: Number
    meta.end Ending index of the result set.

    Data type: Number
    meta.fields Fields in the article.

    Data type: String
    meta.filter Filter used to acquire the data.

    Data type: String
    meta.kb List of knowledge base article sys_ids.

    Data type: String
    meta.language List of comma-separated languages of the KB articles that were requested.

    Data type: String
    meta.query Specified request query.

    Data type: String
    meta.start Starting index of result set.

    Data type: Number
    meta.status Status of the call.

    Data type: String
    meta.ts_query_id Sys_id of the query.

    Data type: String

    cURL request

    curl "https://instance.servicenow.com/api/sn_km_api/knowledge/articles?query=Windows&limit=2&fields=short_description&fields=sys_class_name" \
--request GET \
--header "Accept:application/xml" \
--user "username":"password"
    {
  "result": {
    "meta": {
      "start": 0,
      "end": 2,
      "fields": "short_description,sys_class_name",
      "query": "Windows",
      "filter": "",
      "kb": "",
      "language": "en",
      "count": 19,
      "ts_query_id": "7976f36129c30410f877796e70786991",
      "status": {
        "code": 200
      }
    },
    "articles": [
      {
        "link": "?sys_kb_id=9e528db1474321009db4b5b08b9a71a6&id=kb_article_view&sysparm_rank=1&sysparm_tsqueryId=7976f36129c30410f877796e70786991",
        "rank": 1,
        "id": "kb_knowledge:9e528db1474321009db4b5b08b9a71a6",
        "title": "Windows: Should I upgrade to Windows 8.x?",
        "snippet": "    Should I upgrade to <B>Windows</B> 8.x? <B>Windows</B> 8.x is designed for using touch, mouse, and keyboard the <B>Windows</B> Store and access apps such as Calendar, Mail, and Messaging. By most accounts, <B>Windows</B> boot times, smaller memory footprint, and more free memory for the programs you run. <B>Windows</B>",
        "score": 14.869,
        "number": "KB0000020",
        "fields": {
          "short_description": {
            "display_value": "Windows: Should I upgrade to Windows 8.x?\n\t\t",
            "name": "short_description",
            "label": "Short description",
            "type": "string",
            "value": "Windows: Should I upgrade to Windows 8.x?\n\t\t"
          },
          "sys_class_name": {
            "display_value": "Knowledge",
            "name": "sys_class_name",
            "label": "Class",
            "type": "sys_class_name",
            "value": "kb_knowledge"
          }
        }
      },
      {
        "link": "?sys_kb_id=3b07857187032100deddb882a2e3ec20&id=kb_article_view&sysparm_rank=2&sysparm_tsqueryId=7976f36129c30410f877796e70786991",
        "rank": 2,
        "id": "kb_knowledge:3b07857187032100deddb882a2e3ec20",
        "title": "What is the Windows key?",
        "snippet": "What is the <B>Windows</B> key? The <B>Windows</B> key is a standard key on most keyboards on computers built to use a <B>Windows</B> operating system. It is labeled with a <B>Windows</B> logo, and is usually placed between on the right side as well. Pressing Win (the <B>Windows</B> key) on its own will do the following: <B>Windows</B> 8.x: Toggle",
        "score": 13.4826,
        "number": "KB0000017",
        "fields": {
          "short_description": {
            "display_value": "What is the Windows key?\t\t",
            "name": "short_description",
            "label": "Short description",
            "type": "string",
            "value": "What is the Windows key?\t\t"
          },
          "sys_class_name": {
            "display_value": "Knowledge",
            "name": "sys_class_name",
            "label": "Class",
            "type": "sys_class_name",
            "value": "kb_knowledge"
          }
        }
      }
    ]
  }
}

    Knowledge Management - GET /knowledge/articles/{article_sys_id}/attachments/{attachment_sys_id}

    Returns a knowledge article attachment as a file.

    URL format

    Versioned URL: /api/sn_km_api/{api_version}/knowledge/articles/{article_sys_id}/attachments/{attachment_sys_id}

    Default URL: /api/sn_km_api/knowledge/articles/{article_sys_id}/attachments/{attachment_sys_id}

    주:
    Available versions are specified in the REST API Explorer. For scripted REST APIs there is additional version information on the Scripted REST Service form.

    Supported request parameters

    표 7. Path parameters
    Name Description
    api_version Optional. Version of the endpoint to access. For example, v1 or v2. Only specify this value to use an endpoint version other than the latest.

    Data type: String
    article_sys_id Sys_id of the knowledge article with the attachment you intend to retrieve.

    Data type: String

    Table: Knowledge Bases [kb_knowledge]
    attachment_sys_id Sys_id of record to which the attachment belongs.

    Data type: String
    표 8. Query parameters
    Name Description
    None
    표 9. Request body parameters (XML or JSON)
    Name Description
    None

    Headers

    The following request and response headers apply to this HTTP action only, or apply to this action in a distinct way. For a list of general headers used in the REST API, see Supported REST API headers.

    표 10. Request headers
    Header Description
    Accept Data format of the response body. Supported types: application/json or application/xml.

    Default: application/json
    표 11. Response headers
    Header Description
    Content-Type The content type of the response, for example, image/gif or */*.

    Status codes

    The following status codes apply to this HTTP action. For a list of possible status codes used in the REST API, see REST API HTTP response codes.

    표 12. Status codes
    Status code Description
    200 Successful. The request was successfully processed.
    401 Unauthorized. The user credentials are incorrect or have not been passed.
    404 Not found. The requested item wasn't found.
    500 Internal server error. An unexpected error occurred while processing the request. The response contains additional information about the error.

    Response body parameters

    Name Description
    File is returned as a response.

    Sample cURL request

    curl "https://instance.service-now.com/api/sn_km_api/knowledge/articles/0b48fd75474321009db4b5b08b9a71c2/attachments/fedf5614294f4010f877796e70786956" \
--request GET \
--header "Accept:*/*" \
--user "username":"password"
    Binary response not shown (file is returned as a response).

    Knowledge Management - GET /knowledge/articles/{id}

    Returns specific knowledge article content and its field values.

    URL format

    Versioned URL: /api/sn_km_api/{api_version}/knowledge/articles/{id}

    Default URL: /api/sn_km_api/knowledge/articles/{id}

    주:
    Available versions are specified in the REST API Explorer. For scripted REST APIs there is additional version information on the Scripted REST Service form.

    Supported request parameters

    표 19. Path parameters
    Name Description
    api_version Optional. Version of the endpoint to access. For example, v1 or v2. Only specify this value to use an endpoint version other than the latest.

    Data type: String
    id Sys_id or knowledge base (KB) number of a knowledge article.

    Data type: String

    Table: Knowledge [kb_knowledge]
    표 20. Query parameters
    Name Description
    fields Comma-separated list of fields from the Knowledge [kb_knowledge] table to show details in results.

    Data type: String

    Default: None
    language Two letter ISO 639-1 language code; for example, "fr" for French. Results display only when searches use the knowledge article KB number as the id and a translated version of the article is available in the language specified.
    주:
    Only valid when setting the id parameter as a KB number (not sys_id).

    Data type: String
    search_id Optional unless using search_rank. Unique identifier of search that returned this article.
    You can retrieve search_id using one of the following APIs that returns the articles.id element:

    Passing the search_id and search_rank parameter increments the article view count and records an entry for the article in the Knowledge Use [kb_use] table. You can also verify incremented view counts in Knowledge Base [kb_view2] page.

    Data type: String
    search_rank Optional unless using search_id. Article search rank by click-rate that you can retrieve using one of the following APIs that returns the articles.rank element:

    Data type: Number
    update_view Update view count and record an entry for the article in the Knowledge Use [kb_use] table. True whether present as a standalone parameter or set to true.
    주:
    If you pass update_view with search_id and search_rank, update_view is ignored because the view count will already be incremented.

    Data type: Boolean that is always handled as true when passed whether set to "true", "false", or not set at all.
    표 21. Request body parameters (XML or JSON)
    Name Description
    None

    Headers

    The following request and response headers apply to this HTTP action only, or apply to this action in a distinct way. For a list of general headers used in the REST API, see Supported REST API headers.

    표 22. Request headers
    Header Description
    Accept Data format of the response body. Supported types: application/json or application/xml.

    Default: application/json
    표 23. Response headers
    Header Description
    None

    Status codes

    The following status codes apply to this HTTP action. For a list of possible status codes used in the REST API, see REST API HTTP response codes.

    표 24. Status codes
    Status code Description
    200 Successful. The request was successfully processed.
    401 Unauthorized. The user credentials are incorrect or have not been passed.
    500 Internal server error. An unexpected error occurred while processing the request.

    Response body parameters (JSON or XML)

    Name Description
    attachments Provides attachment details for each instance if attachment exists.

    Only displays if display_attachments = true.

    Data type: Array of Objects

    "attachments": [
  {
    "file_name": "String",
    "size_bytes": "String",
    "state": "String",
    "sys_id": "String"
  }
]
    attachments.file_name File name of attachment.

    Data type: String
    attachments.size_bytes File size.

    Data type: String

    Unit: Bytes
    attachments.state State.
    Possible values:
    • available
    • available_conditionally
    • not_available
    • pending

    Data type: String
    attachments.sys_id Sys_id of the attachment.

    Data type: String
    content Entire HTML content of the article.

    Data type: String
    display_attachments Flag that indicates whether the display_attachments flag is active for that article. Attachments are returned only if display_attachments is true (active) in the knowledge article record.
    • true: display_attachments is active.
    • false: display_attachments is inactive.

    Data type: Boolean
    embedded_content Lists each attachment containing embedded content by sys_id and includes relevant attachment information.

    Only displays if display_attachments = true.

    Data type: Array of Objects

    "attachments": [
  {
    "file_name": "String",
    "size_bytes": "String",
    "state": "String",
    "sys_id": "String"
  }
]
    embedded_content.file_name File name of the attachment.

    Data type: String
    embedded_content.size_bytes Size of the attachment.

    Data type: String

    Unit: Bytes
    embedded_content.state State of the attachment.
    Possible values:
    • available
    • available_conditionally
    • not_available
    • pending

    Data type: String
    embedded_content.sys_id Sys_id of the attachment.

    Data type: String
    fields Values of requested fields (if any).

    Data type: Object

    "fields": {
  "<field_name>": {Object}
}
    fields.<field_name> Lists each field requested using the fields parameter, if any.

    Data type: Object

    "<field_name>": {
  "display_value": "String",
  "label": "String",
  "name": "String",
  "type": "String",
  "value": "String"
}
    fields.<field_name>.display_value Display value of the requested field.

    Data type: String
    fields.<field_name>.label Label representing the requested field. For example, Knowledge.

    Data type: String
    fields.<field_name>.name Name of the requested field. Matches <field_name>.

    Data type: String
    fields.<field_name>.type Data type of requested field.

    Data type: String
    fields.<field_name>.value Value of the requested field.

    Data type: String
    language Two-letter ISO 639-1 language code for the current article (if translation is available).

    Data type: String
    languages For each translated version of a knowledge article (if translated):
    "languages": [
  {
    "label": "String",
    "language": "String",
    "sys_id": "String"
  }
]

    Data type: Array
    languages.label String representation for language.

    Data type: String
    languages.language Two-letter ISO 639-1 code language.

    Data type: String
    languages.sys_id Unique identifier for translated version of knowledge article.

    Data type: String
    number Article number.

    Data type: String
    short_description Short description or title of the knowledge article.

    Data type: String
    sys_id Knowledge article sys_id from the Knowledge [kb_knowledge] table.

    Data type: String
    template Flag that indicates whether a returned article is a template.
    Possible values:
    • true: Article is a template.
    • false: Article is not a template.

    Data type: Boolean
    template_table Name of template table, only returns if knowledge article is a template.

    Data type: String

    cURL request

    curl "https://instance.servicenow.com/api/sn_km_api/knowledge/articles/0b48fd75474321009db4b5b08b9a71c2?search_id=spam&search_rank=26.426" \
--request GET \
--header "Accept:application/json" \
--user "username":"password"
    {
  "result": {
    "content": "<p><span style=\"font-size: 18pt;\"><strong>How to Deal with Spam</strong></span></p>\r\n<p>Spam has increasingly become a problem on the Internet. While every Internet user receives some spam, email  addresses posted to web sites or in newsgroups and chat rooms attract the most spam.</p>\r\n<p>To reduce the amount of spam you receive:</p>\r\n<p>
    "template": false,
    "number": "KB0000011",
    "sys_id": "0b48fd75474321009db4b5b08b9a71c2",
    "short_description": "How to Deal with Spam",
    "display_attachments": true,
    "attachments": [
      {
        "sys_id": "dc27ae18294f4010f877796e707869c8",
        "file_name": "image.jpg",
        "size_bytes": "66792",
        "state": "available_conditionally"
      },
      {
        "sys_id": "fedf5614294f4010f877796e70786956",
        "file_name": "attachment.txt",
        "size_bytes": "75",
        "state": "available_conditionally"
      }
    ],
    "embedded_content": []
  }
}

    Sample cURL request (update_view)

    curl "https://instance.servicenow.com/api/sn_km_api/knowledge/KB0000020?update_view=' \
--request GET \
--header "Accept:application/json" \
--user "username":"password"
    {
  "result": {
    "content": "<p> </p>\r\n<p> </p>\r\n<p><strong><span style=\"font-size: 18pt;\">Should I upgrade to Windows 8.x?</span></strong></p>\r\n<p>Windows 8.x is designed for using touch, mouse, and keyboard together, on hardware ranging from touch-enabled tablets and laptops to PCs and all-in-one computers...(intentionally truncated)</p>",
    "template": false,
    "number": "KB0000020",
    "sys_id": "9e528db1474321009db4b5b08b9a71a6",
    "short_description": "Windows: Should I upgrade to Windows 8.x?\t\t",
    "display_attachments": true,
    "attachments": [],
    "embedded_content": []
  }
}

    Knowledge Management - GET knowledge/articles/most_viewed

    Returns a list of knowledge articles prioritized by most-viewed.

    URL format

    Versioned URL: /api/sn_km_api/{api_version}/knowledge/articles/most_viewed

    Default URL: /api/sn_km_api/knowledge/articles/most_viewed

    주:
    Available versions are specified in the REST API Explorer. For scripted REST APIs there is additional version information on the Scripted REST Service form.

    Supported request parameters

    표 25. Path parameters
    Name Description
    api_version Optional. Version of the endpoint to access. For example, v1 or v2. Only specify this value to use an endpoint version other than the latest.

    Data type: String
    표 26. Query parameters
    Name Description
    fields Comma-separated list of fields from the Knowledge [kb_knowledge] table to show details in results.

    Data type: String

    Default: None
    kb Comma-separated list of knowledge base sys_ids from the Knowledge Bases [kb_knowledge_base] table to restrict results to.

    Data type: String
    language List of comma-separated languages in two-letter ISO 639-1 language code format to restrict results to. Alternatively type 'all' to search in all valid installed languages on an instance.

    Data type: String

    Default: User's session language or en
    limit Maximum number of records to return. Unusually large limit values can impact system performance. For requests that exceed this number of records, use the offset parameter to paginate record retrieval.

    Data type: Number

    Default: 30
    offset Starting record index for which to begin retrieving records. Use this value to paginate record retrieval. This functionality enables the retrieval of all records, regardless of the number of records, in small manageable chunks.

    For example, the first time this endpoint is called, offset is set to "0". To page through all available records, use offset=offset+limit until the end of the all records is reached.

    Data type: Number

    Default: 0
    표 27. Request body parameters (XML or JSON)
    Name Description
    None

    Headers

    The following request and response headers apply to this HTTP action only, or apply to this action in a distinct way. For a list of general headers used in the REST API, see Supported REST API headers.

    표 28. Request headers
    Header Description
    Accept Data format of the response body. Supported types: application/json or application/xml.

    Default: application/json
    표 29. Response headers
    Header Description
    None

    Status codes

    The following status codes apply to this HTTP action. For a list of possible status codes used in the REST API, see REST API HTTP response codes.

    표 30. Status codes
    Status code Description
    200 Successful. The request was successfully processed.
    401 Unauthorized. The user credentials are incorrect or have not been passed.
    500 Internal server error. An unexpected error occurred while processing the request.

    Response body parameters (JSON or XML)

    Name Description
    articles List of articles returned in response.

    Data type: Array

    [
  {
    "fields": {Object},
    "id": "String",
    "link": "String",
    "number": "String",
    "rank": Number,
    "score": Float,
    "snippet": "String",
    "title": "String"
  }
]
    articles.fields Values of requested fields (if any).

    Data type: Object

    "fields": {
  "<field_name>": {Object}
}
    articles.fields.<field_name> Lists each field requested using the fields parameter, if any.

    Data type: Object

    "<field_name>": {
  "display_value": "String",
  "label": "String",
  "name": "String",
  "type": "String",
  "value": "String"
}
    articles.fields.<field_name>.display_value Display value of the requested field.

    Data type: String
    articles.fields.<field_name>.label Label representing the requested field. For example, Knowledge.

    Data type: String
    articles.fields.<field_name>.name Name of the requested field. Matches <field_name>.

    Data type: String
    articles.fields.<field_name>.type Data type of requested field.

    Data type: String
    articles.fields.<field_name>.value Value of the requested field.

    Data type: String
    articles.id Knowledge article sys_id from the Knowledge [kb_knowledge] table.

    Data type: String
    articles.link Link to the article.

    Data type: String
    articles.number Knowledge article number.

    Data type: String
    articles.rank Search rank of article specific to this search.

    Data type: Float
    articles.score Relevancy score, results sorted in descending order by score.

    Data type: String
    articles.snippet Text showing a small portion of the knowledge article.

    Data type: String
    articles.title Short description or title of the knowledge article.

    Data type: String
    meta Meta information of the results and request parameters.

    Data type: Object

    "meta": {
  "count": Number,
  "end": Number,
  "fields": "String",
  "filter": "String",
  "kb": "String",
  "language": "String",
  "query": "String",
  "start": Number,
  "status": {Object},
  "ts_query_id": "String"
}
    meta.count Number of available KB articles.

    Data type: Number
    meta.end Ending index of the result set.

    Data type: Number
    meta.fields Fields in the article.

    Data type: String
    meta.filter Filter used to acquire the data.

    Data type: String
    meta.kb List of knowledge base article sys_ids.

    Data type: String
    meta.language List of comma-separated languages of the KB articles that were requested.

    Data type: String
    meta.query Specified request query.

    Data type: String
    meta.start Starting index of result set.

    Data type: Number
    meta.status HTTP status of the call.

    Data type: String
    meta.ts_query_id Sys_id of the query.

    Data type: String

    cURL request

    curl "https://instance.servicenow.com/api/sn_km_api/knowledge/articles/most_viewed?limit=5" \
--request GET \
--header "Accept:application/json" \
--user "username":"password"
    {
  "result": {
    "meta": {
      "start": 0,
      "end": 5,
      "fields": "",
      "query": "",
      "filter": "workflow_state=published^valid_to>=javascript:gs.beginningOfToday()^active=true^sys_class_name!=kb_knowledge_block^sys_view_count>0^ORDERBYDESCsys_view_count^ORDERBYshort_description",
      "kb": "",
      "count": 2,
      "status": {
        "code": 200
      },
      "language": "en"
    },
    "articles": [
      {
        "link": "?id=kb_article_view&sys_kb_id=0b48fd75474321009db4b5b08b9a71c2",
        "id": "kb_knowledge:0b48fd75474321009db4b5b08b9a71c2",
        "title": "How to Deal with Spam",
        "snippet": "How to Deal with Spam Spam has increasingly become a problem on the Internet. While every Internet user receives some spam, email addresses posted to web sites or in newsgroups and chat rooms attract the most spam. To reduce the amount of spam you receive: Don't reply to spam Be careful releasing your email address, and know how it will be used ",
        "score": 7,
        "tags": [],
        "number": "KB0000011"
      },
      {
        "link": "?id=kb_article_view&sys_kb_id=c85cd2519f77230088aebde8132e70c2",
        "id": "kb_knowledge:c85cd2519f77230088aebde8132e70c2",
        "title": "Microsoft Outlook Issues",
        "snippet": "Microsoft Outlook Issues This article explains how to use automatic replies in Outlook 2010 for Exchange accounts. Setting Up Automatic Replies Click the File tab. Click Automatic Replies. Select Send automatic replies. If desired, select the Only send during this time range check box to schedule when your out of office replies are active. If yo",
        "score": 6,
        "tags": [],
        "number": "KB99999999"
      }
    ]
  }
}