LogixVast
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Developers

Ship programmatically.
REST API + webhooks.

Everything in the LogixVast UI is available via API. Rate shop, generate labels, track shipments, sync orders, manage returns — all programmatic.

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Up in minutes.

API key authentication. JSON requests and responses. RESTful conventions throughout.

  • Base URL: https://api.logixvast.com/v1
  • Auth: Authorization: Bearer <api_key>
  • Rate limit: 500 req/min (Enterprise: unlimited)
  • Versioning: path-based (/v1/, /v2/)
curlGet rates for a shipment
curl -X POST https://api.logixvast.com/v1/rates \
  -H "Authorization: Bearer lv_live_abc123" \
  -H "Content-Type: application/json" \
  -d '{
    "from_zip": "10001",
    "to_zip": "90210",
    "weight_oz": 16,
    "dimensions": { "l": 10, "w": 8, "h": 4 }
  }'

// Response
{
  "rates": [
    {
      "carrier": "fedex",
      "service": "HOME_DELIVERY",
      "price_cents": 842,
      "transit_days": 3
    },
    {
      "carrier": "usps",
      "service": "PRIORITY_MAIL",
      "price_cents": 989,
      "transit_days": 2
    }
  ]
}

Core endpoints.

Rates
POST/v1/ratesGet rate quotes from all connected carriers
POST/v1/rates/cheapestGet only the cheapest rate across carriers
Labels
POST/v1/labelsPurchase a label at a specific rate
GET/v1/labels/:idRetrieve label details and PDF URL
DELETE/v1/labels/:idVoid a label (within carrier window)
Tracking
GET/v1/tracking/:numberGet full tracking event timeline
POST/v1/webhooks/trackingRegister a webhook for tracking updates
Orders
GET/v1/ordersList orders across all channels
GET/v1/orders/:idGet order with channel metadata
PATCH/v1/orders/:idUpdate order status or notes
Returns
POST/v1/returnsCreate a return label for an order
GET/v1/returns/:idGet return status and tracking

Webhooks.

Subscribe to events and receive real-time POST requests to your endpoint.

shipment.createdLabel purchased and shipment created
shipment.deliveredCarrier confirms delivery scan
shipment.exceptionPackage stalled or delivery failed
order.syncedNew order received from marketplace
return.requestedCustomer submitted return request
return.receivedReturn package scanned by carrier

API access on all paid plans.

Full documentation available after signup. Enterprise includes unlimited API calls and dedicated integration support.

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