> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mindsdb.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Query Knowledge Base

**POST `/api/sql/query`**

This API endpoint queries a knowledge base using the `POST` method. Learn more about [querying knowledge bases using semantic search and metadata filtering here](/mindsdb_sql/knowledge_bases/query).

<Tip>
  Learn more about knowledge bases following [this doc page](/mindsdb_sql/knowledge_bases/overview).
</Tip>

### Path Parameters

None.

### Body

<ParamField body="query" type="string" required>
  A query that is sent to the MindsDB instance.
</ParamField>

### Response

Contains data stored in the knowledge base.

<RequestExample>
  ```shell Shell theme={null}
  curl -X POST http://127.0.0.1:47334/api/sql/query \
       --header 'Content-Type: application/json' \
       --data '{
          "query": "SELECT * FROM my_kb;"
       }'
  ```
</RequestExample>

<ResponseExample>
  ```json Response theme={null}
  {
    "type": "table",
    "column_names": [
      "id",
      "chunk_id",
      "chunk_content",
      "metadata",
      "relevance",
      "distance"
    ],
    "data": [
      [
        "A1B",
        "A1B:notes:1of1:0to20",
        "Request color: black",
        {
          "chunk_index": 0,
          "content_column": "notes",
          "end_char": 20,
          "original_doc_id": "A1B",
          "original_row_index": "0",
          "product": "Wireless Mouse",
          "source": "TextChunkingPreprocessor",
          "start_char": 0
        },
        null,
        null
      ],
      [
        "3XZ",
        "3XZ:notes:1of1:0to19",
        "Gift wrap requested",
        {
          "chunk_index": 0,
          "content_column": "notes",
          "end_char": 19,
          "original_doc_id": "3XZ",
          "original_row_index": "1",
          "product": "Bluetooth Speaker",
          "source": "TextChunkingPreprocessor",
          "start_char": 0
        },
        null,
        null
      ],
      [
        "Q7P",
        "Q7P:notes:1of1:0to22",
        "Prefer aluminum finish",
        {
          "chunk_index": 0,
          "content_column": "notes",
          "end_char": 22,
          "original_doc_id": "Q7P",
          "original_row_index": "2",
          "product": "Aluminum Laptop Stand",
          "source": "TextChunkingPreprocessor",
          "start_char": 0
        },
        null,
        null
      ]
    ],
    "context": {
      "show_secrets": false,
      "db": "mindsdb"
    }
  }
  ```
</ResponseExample>