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

# Select Seller

> Set the active seller for the member's session.

Stores the chosen seller in the session after verifying the member belongs to it.

<Note>
  Requires only the `Authorization` header. Session-based clients get the seller stored server-side; token-based clients should send `x-seller-id` on subsequent requests instead.
</Note>

## Body parameters

<ParamField body="seller_id" type="string" required>
  The ID of the seller to activate for this session.
</ParamField>

## Response

<ResponseField name="success" type="boolean">
  Whether the seller was selected.
</ResponseField>

<RequestExample>
  ```bash cURL theme={null}
  curl -X POST 'http://localhost:9000/vendor/sellers/select' \
    -H 'Authorization: Bearer <token>' \
    -H 'Content-Type: application/json' \
    -d '{"seller_id": "sel_01HXYZ"}'
  ```

  ```ts JS Client theme={null}
  const { success } = await client.vendor.sellers.select.mutate({
    seller_id: "sel_01HXYZ",
  })
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={null}
  { "success": true }
  ```
</ResponseExample>