# No authentication headers required for local deployments
curl -X PUT 'http://localhost:5173/api/v1/private/experiments/items/bulk' \
  -H 'Content-Type: application/json' \
  -d '{ ... }'
```

## Reference

* **Endpoint**: `PUT /api/v1/private/experiments/items/bulk`
* **Max Payload Size**: 4MB
* **Required Fields**: `experiment_name`, `dataset_name`, `items` (with `dataset_item_id`)
* **SDK Reference**: [ExperimentsClient.experiment\_items\_bulk](https://www.comet.com/docs/opik/python-sdk-reference/rest_api/clients/experiments.html#opik.rest_api.experiments.client.ExperimentsClient.experiment_items_bulk)
* **REST API Reference**: [Experiments API](/reference/rest-api/experiments/experiment-items-bulk)