> Search across orders using free-form criteria. # Search orders Search across orders using free-form criteria. ## Endpoint ``` POST /search/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/search/orders/ ``` ## Request body Content-Type: `application/json` (required) ## Responses ### 200 — Search results ### 401 — Invalid or missing API key ### 403 — No authorization for the requested resource ## cURL ```bash curl -u YOUR_API_KEY: \ -X POST https://api.costplus.online/v1/search/orders/ \ -H 'Content-Type: application/json' \ -d '{ "merchant_order_id": "ORDER-1" }' ```