Enterprise-grade 3D load optimization kernel. Increase truck utilization by 20%+ while maintaining perfect axle weight compliance and regulatory adherence.
Production-ready algorithms handling real-world constraints that spreadsheets and manual planning can't solve.
Full 3D voxel simulation with real-world physics: gravity, center of mass, stacking constraints, and collision detection.
Vehicle Routing Problem solver with time windows, HOS regulations, and multi-depot support.
UN Class segregation, incompatibility matrices, and DOT placarding requirements built-in.
Non-blocking API with job queuing, progress tracking, and webhook callbacks for large-scale operations.
Detailed infeasibility analysis, constraint violation explanations, and counterfactual probes.
Multi-tenant architecture with API key management, usage metering, quota enforcement, and audit logs.
Stower isn't a dashboard—it's a high-performance optimization kernel that integrates directly into your logistics infrastructure via REST API.
One HTTP request returns optimized routes and load plans.
POST https://api.stower.dev/v1/optimize
{
"orders": [...],
"trucks": [...],
"constraints": {
"axle_compliance": true,
"hazmat_segregation": true,
"time_windows": true
}
}
→ Returns optimized routes + 3D load plans in <2sReal logistics operations using Stower's optimization engine to drive measurable results.
High-value furniture shipments with complex dimensional constraints and damage prevention requirements. Needed precision load planning to maximize truck capacity while ensuring product protection.
Handles 100,000+ medical deliveries annually for Tennessee Oncology. Critical time windows for medication delivery with strict temperature control and compliance requirements.
Production-grade infrastructure with predictable pricing and dedicated support.
Perfect for mid-sized fleets and growing operations
Enterprise scale with dedicated infrastructure
Manual load planning is slow, error-prone, and often results in underutilized trucks or axle weight violations. Stower uses physics-based 3D packing algorithms to maximize truck utilization (typically 15-25% improvement) while ensuring all regulatory constraints are met—including DOT axle limits, HOS compliance, and hazmat segregation.
Stower is a headless API that integrates via REST endpoints. Send your orders, trucks, and constraints as CSV or JSON; receive back optimized routes and 3D load plans. We provide SDKs for Python, JavaScript, and PHP. Most customers integrate in under a week using our detailed API documentation and example code.
Stower handles time windows, driver hours-of-service (HOS), multi-depot routing, heterogeneous fleets, hazmat UN class segregation, stackability rules, weight limits per axle group, load securing requirements, and custom business rules. The explainability engine can also tell you exactly why a solution is infeasible if constraints can't be satisfied.
Simple scenarios (10-20 stops) typically solve in under 2 seconds. Larger problems (100+ stops, multiple vehicles) can take 30-120 seconds. For very large jobs, we offer async processing with webhook callbacks so you don't have to keep a connection open. Our p95 latency for production workloads is under 3 seconds.
Full access to the Architect plan features with 1,000 API calls over 72 hours. You'll get API keys, access to our interactive demo interface, example CSV templates, and full documentation. No credit card required. After the trial, you can upgrade to a paid plan or request an extension to complete your evaluation.
Start your 72-hour free trial. No credit card required. Full access to all features.