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Merchant API v1

A better box starts with your data.

Send item dimensions and container options to Optipacker. Bring the recommendation into your own checkout, fulfillment tool or packing application.

Reviewed September 2026
// Single Endpoint
POST /api/v1/optimal-container

Send containers + items

Compare candidate containers

Get single-SKU arranged placements

Configure gaps, rotation, constraints

Try Live DemoRead API Docs
Optipacker

Bring packing into your workflow.

Use container recommendations in your own integration. Single-SKU arranged requests can return 3D placements; mixed-SKU requests return a volume and dimension estimate.

  1. Send item dimensions, quantities and candidate containers.
  2. Request a recommendation with a valid authentication token.
  3. Use the fit result and available placement data in your application.
LIVE INTERACTIVE DEMO

See the Engine in Action

Set up a single-SKU example, run the public demonstration and inspect the arranged packing result. Production API requests require authentication.

Configuration
Pack the requested quantity into this container.
Container (mm)
Item (mm)
GAPS (mm)
X/Y
Layer
Side Wall
Bottom
ROTATION
X
Y
Z
STACKING MODEBalanced and even layouts are available in capacity mode.
Balanced
Sequential
Even
Stable ✓

{
  "requestId": "demo-preview",
  "availableContainers": [
    {
      "sku": "DEMO-BOX",
      "name": "Demo Container",
      "innerDimensions": {
        "length": 300,
        "width": 200,
        "height": 150,
        "unit": "mm"
      },
      "maxWeight": 5000,
      "emptyWeight": 150
    }
  ],
  "items": [
    {
      "sku": "DEMO-ITEM",
      "name": "Demo Item",
      "dimensions": {
        "length": 20,
        "width": 20,
        "height": 20,
        "unit": "mm"
      },
      "weight": 10,
      "weightUnit": "g",
      "quantity": 6,
      "allowRotation": true
    }
  ],
  "options": {
    "packingMode": "shipment",
    "algorithm": "arranged",
    "preference": "smallest_volume",
    "gaps": {
      "x": 5,
      "y": 5,
      "z": 5,
      "wallClearance": 10,
      "sideWallClearance": 10,
      "bottomClearance": 10,
      "enforcementMode": "strict"
    },
    "rotationConstraints": {
      "allowXAxisRotation": false,
      "allowYAxisRotation": false,
      "allowZAxisRotation": true
    },
    "stackingMode": "stable"
  }
}

Ready to simulate

Placement data

Single-SKU arranged results can include part-centre coordinates, dimensions and rotations for your own visualization.

Shipment and capacity modes

Check a requested shipment or explore the capacity of a container for one SKU. Review partial-fit results as well as complete fits.

Explicit packing constraints

Set supported gaps, wall clearances and rotation rules. Use identical layers for supported single-SKU shipment requests.

View the full API documentation for request/response schemas and authentication details. Have questions? See common integration questions in our FAQ, or explore the full platform features.

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