> Retrieve a collection of orders created within the specified period. # List orders by date range Retrieve a collection of orders created within the specified period. ## Endpoint ``` GET /orders ``` ## Authentication HTTP Basic — use your API key as the username with an empty password. ```bash curl -u YOUR_API_KEY: https://api.costplus.online/v1/orders/ ``` ## Parameters | In | Name | Type | Required | Description | |---|---|---|---|---| | query | `created_since` | string | yes | Start of the period (ISO 8601) | | query | `created_until` | string | yes | End of the period (ISO 8601) | ## Responses ### 200 — A collection of orders ### 401 — Invalid or missing API key ### 403 — No authorization for the requested resource ## cURL ```bash curl -u YOUR_API_KEY: \ 'https://api.costplus.online/v1/orders/?created_since=2026-01-01T00:00:00Z&created_until=2026-02-01T00:00:00Z' ```