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

# List Namespaces

> Lists the names of the namespaces of an index.

## Request

This endpoint doesn't require any additional data.

## Response

<ResponseField name="namespaces" type="string[]" required>
  Array of namespace names.

  <Note>Every index has at least one namespace called default namespace, whose name is the empty string `""`.</Note>
</ResponseField>

<RequestExample>
  ```sh curl theme={"system"}
  curl $UPSTASH_VECTOR_REST_URL/list-namespaces \
    -H "Authorization: Bearer $UPSTASH_VECTOR_REST_TOKEN"
  ```
</RequestExample>

<ResponseExample>
  ```json 200 OK theme={"system"}
  {
      "result": ["", "ns0", "ns1"]
  }
  ```
</ResponseExample>