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Saylor Innovations Freight Class Calculator
x402
Saylor Innovations Freight Class Calculator is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).
Calculates freight density and estimates the NMFC freight class from shipment weight and dimensions
Price / call$0.01
Success—
StatusUnknown
How this service works
Freight class hint from weight and dimensions - volume, density and NMFC density class
Output
Returns a JSON object with the original input dimensions and weight, computed volume in both cubic inches and cubic feet, density in lbs per cubic foot, an estimated NMFC freight class hint as a string, the formula used for calculation, the rounding rule applied, a scope note explaining what the data covers and excludes, and a service note.
Example use cases
Pre-shipment freight class check
“I'm about to book an LTL shipment — the pallet weighs 200 lbs and measures 48 inches long by 40 inches wide by 48 inches tall. Can you tell me what freight class and density that works out to?”
E-commerce fulfillment rate estimation
“I need to estimate the NMFC freight class for a product we're shipping — it's a box that's 24 inches long, 18 inches wide, 12 inches tall, and weighs 30 lbs. What class would that fall into?”
Freight audit and reclassification check
“Our carrier billed us for freight class 70 but our box was 60 inches long, 48 inches wide, 36 inches tall and weighed 500 lbs — can you calculate the density and tell me what class that should actually be?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/shipping/freight-class?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, programmatic estimate of freight density and NMFC class from package dimensions and weight — ideal for pre-shipment quoting, rate shopping, or auditing carrier classifications. Prefer this over manual NMFC lookups when automating LTL shipping workflows or when you need the density calculation alongside the class estimate.
Side effects
- Missing required query parameters (weight_lb, length_in, width_in, height_in) returns an error
- Non-positive or non-numeric dimension values may cause validation errors
- The NMFC class is a hint/estimate only and may not match carrier-assigned class for all commodity types
- Payment failure via x402 protocol returns 402 and no data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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