Query knowledge base details

Read the complete metadata of a knowledge base, including associated assets, index status, and versions.

GET https://moi.matrixorigin.cn/newmoi/workspaces/{workspace_id}/knowledge-bases/{knowledge_base_id}

Before you call

First query the knowledge base list to obtain the knowledge base ID. Prepare a personal access token and target workspace ID that has access to the target workspace.

The example below uses:

• $AI_STUDIO_API_KEY: The actual personal access token, passed through the X-API-Key Header.

• $WORKSPACE_ID: Target workspace ID, passed through the X-Workspace-ID Header and also as workspace_id in the path.

• $KNOWLEDGE_BASE_ID: ID of the knowledge base to be queried.

Request example

curl "https://moi.matrixorigin.cn/newmoi/workspaces/$WORKSPACE_ID/knowledge-bases/$KNOWLEDGE_BASE_ID" \
  -H "X-API-Key: $AI_STUDIO_API_KEY" \
  -H "X-Workspace-ID: $WORKSPACE_ID"

Path parameters

Parameters	Type	Is it required	Description
workspace_id	string	Yes	Current workspace ID, must be consistent with X-Workspace-ID.
knowledge_base_id	string	Yes	The ID of the knowledge base to be queried.

Successful response

Returns 200 on success. data is knowledge base metadata.

{
  "code": 0,
  "data": {
    "id": "kb_01",
    "workspace_id": "ws_01",
    "name": "产品文档",
    "description": "已审核的产品资料",
    "status": "active",
    "source_type": "catalog_resource",
    "catalog_asset_refs": [
      {
        "type": "catalog",
        "id": "cat_01",
        "role": "source"
      }
    ],
    "tags": ["产品", "文档"],
    "owner_user_id": "user_01",
    "visibility": "workspace",
    "index_status": "ready",
    "last_indexed_at": "2026-08-18T01:00:00Z",
    "version": 2,
    "labels": {
      "department": "product"
    },
    "created_by": "user_01",
    "updated_by": "user_01",
    "created_at": "2026-08-18T01:00:00Z",
    "updated_at": "2026-08-18T02:00:00Z"
  }
}

The response fields are as follows.

Field	Type	Description
code	integer	0 on success.
data.id	string	Knowledge base ID.
data.workspace_id	string	ID of the workspace to which it belongs.
data.name	string	Name and description; will not be returned if no description is set.
data.description	string	Name and description; will not be returned if no description is set.
data.status	string	Knowledge base status and source type.
data.source_type	string	Knowledge base status and source type.
data.catalog_asset_refs	object[]	Associated assets; not returned if not set. Each item can contain type, id, uri, version, role, and config.
data.default_retrieval_profile_ref	string	Default retrieval configuration reference; does not return if not set.
data.tags	string[]	Label; does not return if not set.
data.owner_user_id	string	Owner user ID; not returned if not set.
data.visibility	string	Visible range and index status.
data.index_status	string	Visible range and index status.
data.last_indexed_at	string	Recent index time and error message; not returned if not set.
data.last_index_error	string	Recent index time and error message; not returned if not set.
data.version	integer	Resource version.
data.labels	object	Extended tags, comments, and metadata; not returned if not set.
data.annotations	object	Extended tags, comments, and metadata; not returned if not set.
data.metadata	object	Extended tags, comments, and metadata; not returned if not set.
data.created_by	string	Creator and last updater ID; not returned if not set.
data.updated_by	string	Creator and last updater ID; not returned if not set.
data.created_at	string	Creation and last update times, in RFC 3339 format.
data.updated_at	string	Creation and last update times, in RFC 3339 format.

[] after a type denotes an array. [] in a field path denotes each item in an array.

Error response

{
  "code": 3,
  "message": "knowledge base not found"
}

Common HTTP errors

HTTP status code	error code	Common causes	Recommended actions
400	2（INVALID_ARGUMENT）	The path parameter is invalid.	Check the workspace ID and knowledge base ID and do not use path separators in the ID.
401	6（UNAUTHENTICATED）	Lack of valid identity credentials.	Check API Key.
404	3（NOT_FOUND）	The knowledge base does not exist in the current workspace.	Check out knowledge_base_id, or consult the knowledge base list first.
503	15（UNAVAILABLE）	The knowledge base service is temporarily unavailable.	Try again later.

Follow-up operations

When metadata needs to be modified, call Update knowledge base.

Last updated on Sep 3, 2026