# Moltline Shipping Maths Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Moltline Shipping Maths

Calculate dimensional weight, box fit, landed costs and freight class for shipping.

- Record: https://musedirectory.ai/connector/moltline-shipping-maths
- Category: Shopping & Commerce
- Developer: Moltline Studio (https://moltlinestudio.com/servers.html#shipping)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 1288ms, checked 2026-09-28T07:46:03Z
- Endpoint: https://mcp.moltlinestudio.com/shipping
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-24T16:46:11Z)
- Source: Found in the official MCP Registry (com.moltlinestudio/shipping) https://registry.modelcontextprotocol.io/v0/servers?search=com.moltlinestudio%2Fshipping

Helps small businesses and e-commerce sellers optimize shipping costs. Calculates dimensional weight vs actual weight, finds the smallest box an item fits in, computes landed costs with duty and tax, and estimates US LTL freight class from density. Four tools are free; rate card and free shipping threshold require a license.

Example request: "Tell me if this 18 by 12 by 10 inch box weighing 6 pounds will be billed on size or weight."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Moltline Shipping Maths to help me. It is a free service with an MCP server at https://mcp.moltlinestudio.com/shipping. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- dim_weight: Work out whether a parcel bills on its size or its weight. FREE. Carriers charge the greater of actual weight and dimensional weight, so a light bulky box costs more than the scale suggests. Typical input {"length": 18, "width": 12, "height": 10, "actual_weight": 6} returns {"cub
- parcel_fit: Pick the smallest box an item actually fits in, allowing for padding. FREE. Tries every rotation of the item against every box, so an item that only fits diagonally-oriented is still found. Typical input {"item_length": 10, "item_width": 6, "item_height": 4, "box_options": [[12, 
- landed_cost: Total what a unit really costs once freight, duty and fees are in. FREE. Duty is applied to goods value, tax to goods plus duty plus freight — the common import treatment — and the order is spelled out in the response so you can check it against your own broker's method. Typical 
- freight_class: Derive a US LTL freight class from density. FREE. Density in pounds per cubic foot maps to a class on the published NMFC density scale. Typical input {"length": 48, "width": 40, "height": 36, "weight": 400} returns {"cubic_feet": 40.0, "density_pcf": 10.0, "density_class": "100",
- rate_card: Turn a cost model into a customer-facing weight-banded price table. PREMIUM (license). Prices each band at its upper bound so you never under-charge inside a band, then rounds up to a tidy increment. Typical input {"base_cost": 4.2, "cost_per_lb": 0.65, "bands_lb": [1, 2, 5, 10],
- free_shipping_threshold: Find the order value at which free shipping stops costing you money. PREMIUM (license). Break-even is where the gross margin on the order covers the shipping you absorb. Typical input {"gross_margin_pct": 45, "ship_cost": 7.5, "current_aov": 38, "target_uplift_pct": 15} returns {

Screening checks:
- MCP handshake: pass (Answered in 618ms)
- Domain against threat feeds (Cloudflare security DNS): pass (mcp.moltlinestudio.com, moltlinestudio.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (6 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)