{"uid":"cap_KfMnJ81TK4a2HLEGwyzgv","slug":"saylor-innovations-freight-class-calculator-b60f64c6","name":"Saylor Innovations Freight Class Calculator","description":"Freight class hint from weight and dimensions - volume, density and NMFC density class","url":"https://saylorinnovations.com/api/shipping/freight-class?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["weight_lb","length_in","width_in","height_in"],"properties":{"width_in":{"type":"string","description":"required positive packaged width in inches (query)"},"height_in":{"type":"string","description":"required positive packaged height in inches (query)"},"length_in":{"type":"string","description":"required positive packaged length in inches (query)"},"weight_lb":{"type":"string","description":"required positive shipment weight in pounds (query)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["weight_lb","length_in","width_in","height_in","density_lb_per_cubic_ft","estimated_nmfc_class_hint","scope_note"],"properties":{"formula":{"type":"string","description":"Formula used for the calculation"},"rounding":{"type":"string","description":"Rounding rule applied to the figures"},"width_in":{"type":"number","description":"Width, in inches"},"height_in":{"type":"number","description":"Height, in inches"},"length_in":{"type":"number","description":"Length, in inches"},"weight_lb":{"type":"number","description":"Weight lb"},"scope_note":{"type":"string","description":"What this data covers and what it leaves out"},"service_note":{"type":"string","description":"Note about the service behind the data"},"volume_cubic_ft":{"type":"number","description":"Volume cubic, in feet"},"volume_cubic_in":{"type":"number","description":"Volume cubic, in inches"},"density_lb_per_cubic_ft":{"type":"number","description":"Density lb per cubic, in feet"},"estimated_nmfc_class_hint":{"type":"string","description":"Estimated nmfc class hint"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_IpjYjwjzSPQDy3e6AEhLT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates freight density and estimates the NMFC freight class from shipment weight and dimensions","exampleAgentPrompt":"What freight class would a shipment be if it weighs 150 lbs and the box is 48 inches long, 40 inches wide, and 36 inches tall?","exampleUseCases":[{"title":"Pre-shipment freight class check","prompt":"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?"},{"title":"E-commerce fulfillment rate estimation","prompt":"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?"},{"title":"Freight audit and reclassification check","prompt":"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?"}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-17T12:41:36.963Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-freight-class-calculator-b60f64c6"}