Moltline Dropship Economics

Working · 268 ms

com.moltlinestudio/dropshipv1.2.0 Domain verified

Margin, lead time, SKU mapping and price-ladder maths for dropshipping. 4 of 6 free.

Commerce

Source Website Registry entry

Try it

Call this server's tools from your browser. Nothing to install.

https://mcp.moltlinestudio.com/dropship

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

lead_time

Turn supplier and transit times into a date you can promise. FREE. Adds a buffer, because the number a supplier quotes is their best case and the date you publish is a commitment. Typical input {"supplier_days": 3, "transit_days": 12, "order_date": "2026-08-20"} returns {"total_days": 17, "delivery_date": "2026-09-06", "promise_date": "2026-09-09", "advice": "..."}. Use when writing a shipping policy or answering "when will it arrive". Not for what the shipping costs — that is the shipping server. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "order_date must be YYYY-MM-DD, e.g. 2026-08-20"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

transit_daysinteger, required

Days in transit from despatch to the customer.

supplier_daysinteger, required

Days from your order to the supplier despatching it.

order_datestring

Start date as YYYY-MM-DD, e.g. "2026-08-20". Defaults to today when omitted.

buffer_daysinteger

Extra days added before the date you publish. Default 2.

working_days_onlyboolean

When true, count supplier and transit days as Monday-Friday only. Default false.

Tools (6)

lead_time

read-only

Argument	Type	Description
order_date	string	Start date as YYYY-MM-DD, e.g. "2026-08-20". Defaults to today when omitted.
buffer_days	integer	Extra days added before the date you publish. Default 2.
transit_days*	integer	Days in transit from despatch to the customer.
supplier_days*	integer	Days from your order to the supplier despatching it.
working_days_only	boolean	When true, count supplier and transit days as Monday-Friday only. Default false.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "supplier_days",
    "transit_days"
  ],
  "properties": {
    "order_date": {
      "type": "string",
      "default": "",
      "description": "Start date as YYYY-MM-DD, e.g. \"2026-08-20\". Defaults to\ntoday when omitted."
    },
    "buffer_days": {
      "type": "integer",
      "default": 2,
      "minimum": 0,
      "description": "Extra days added before the date you publish. Default 2."
    },
    "transit_days": {
      "type": "integer",
      "minimum": 0,
      "description": "Days in transit from despatch to the customer."
    },
    "supplier_days": {
      "type": "integer",
      "minimum": 0,
      "description": "Days from your order to the supplier despatching it."
    },
    "working_days_only": {
      "type": "boolean",
      "default": false,
      "description": "When true, count supplier and transit days as\nMonday-Friday only. Default false."
    }
  },
  "additionalProperties": false
}

margin_check

Show what one sale actually leaves after every cost. FREE. Subtracts supplier cost, shipping, payment fees, the ad spend that found the buyer, and anything else — then reports the break-even price so you know how much room there is. Typical input {"sell_price": 39.99, "supplier_cost": 12.4, "shipping_cost": 4.2, "ad_cost_per_order": 9} returns {"revenue": 39.99, "total_cost": 27.06, "profit": 12.93, "margin_pct": 32.33, "markup_pct": 222.5, "break_even_price": 27.06, "biggest_cost": "supplier_cost"}. Use before listing a product. Not for a whole tiered price list — that is price_ladder — and not for the effect of returns, which is returns_impact. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

read-only

Argument	Type	Description
other_cost	number	Anything else per order: packaging inserts, app fees, support time. Default 0.
sell_price*	number	What the customer pays, excluding tax. Must be above 0.
shipping_cost	number	Shipping you absorb per order. Default 0.
supplier_cost*	number	What the supplier charges you per unit.
payment_fee_pct	number	Processor percentage fee. Default 2.9 — a common published rate, not a statement about your account.

moq_planner

Decide how much to order against demand, lead time and the cash you have. PREMIUM (license). A minimum order quantity is a cash-flow decision disguised as a purchasing one. Typical input {"unit_cost": 4.2, "moq": 500, "monthly_demand": 120, "cash_available": 3000, "lead_time_days": 45} returns {"moq_cost": 2100.0, "months_of_cover": 4.17, "affordable": true, "cash_after": 900.0, "reorder_point_units": 236, "verdict": "..."}. Use before committing to a supplier's minimum. Not for the margin each unit earns — that is margin_check. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

read-only

Argument	Type	Description
moq*	integer	The supplier's minimum order quantity, in units.
unit_cost*	number	Cost per unit at the MOQ. Must be above 0.
safety_weeks	number	Weeks of demand held as buffer against a late delivery. Default 2.
cash_available*	number	Cash you can commit to stock right now.
lead_time_days	integer	Days from placing the order to stock being sellable. Default 30.
monthly_demand

price_ladder

Work backwards from the margin you want to the price you must charge. FREE. Solves for price including the percentage fee, which is why it is not simply cost divided by one minus margin. Typical input {"supplier_cost": 12.4, "target_margins_pct": [30, 40, 50], "shipping_cost": 4.2} returns {"rows": [{"target_margin_pct": 30, "price": 25.99, "total_cost": 17.65, "profit": 8.34, "actual_margin_pct": 32.07}, ...]}. Use when setting a price list. Not for checking one price you already have — that is margin_check. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "target_margins_pct must contain at least one margin"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

read-only

Argument	Type	Description
charm_ending	string	Force prices to end in these cents, e.g. ".99". Pass an empty string for exact prices. Default ".99".
shipping_cost	number	Shipping you absorb per order. Default 0.
supplier_cost*	number	Per-unit cost from the supplier. Must be above 0.
payment_fee_pct	number	Processor percentage fee. Default 2.9.
payment_fee_fixed	number	Processor fixed fee. Default 0.30.
target_margins_pct

returns_impact

Show what a return rate does to a margin that looked fine. PREMIUM (license). A 10% return rate does not cost 10% of profit. A returned order gives back the refund, adds inbound shipping, and recovers only the goods — never the advertising that found the buyer. Typical input {"sell_price": 39.99, "unit_profit": 13.23, "unit_cost": 12.4, "return_rate_pct": 8, "restock_pct": 70, "return_shipping": 6} returns {"cost_per_return": 37.31, "effective_profit": 10.25, "profit_lost_pct": 22.56, "break_even_return_rate_pct": 35.46}. Use when a category's returns are high enough to argue about. Not for the pre-returns margin itself — that is margin_check. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

read-only

Argument	Type	Description
unit_cost*	number	What the goods themselves cost you — the only part a restocked unit gives back. Advertising and fees do not return.
refund_pct	number	Percentage of the sale price refunded, e.g. 100 for a full refund or 80 when a restocking fee is kept. Default 100.
sell_price*	number	Price the customer paid.
restock_pct	number	Percentage of returned units resellable at full price. Default 0, the conservative case.
unit_profit*

sku_map_check

Find the breaks in a supplier-to-store SKU map before they ship. FREE. Two store SKUs pointing at one supplier SKU is usually intentional; two supplier SKUs claiming one store SKU is not, and it sends the wrong item. Typical input {"mapping": {"STORE-1": "SUP-A", "STORE-2": "SUP-A", "STORE-3": ""}} returns {"ok": false, "count": 3, "empty_targets": ["STORE-3"], "shared_supplier_skus": {"SUP-A": ["STORE-1", "STORE-2"]}, "whitespace_issues": []}. Use before importing a mapping or handing one to a fulfilment app. Not for validating Shopify's CSV columns — that is the shopify server. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "mapping must contain at least one store SKU"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

read-only

Argument	Type	Description
mapping*	object	Store SKU to supplier SKU, e.g. {"STORE-1": "SUP-A"}. At least one entry.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "mapping"
  ],
  "properties": {
    "mapping": {
      "type": "object",
      "description": "Store SKU to supplier SKU, e.g. {\"STORE-1\": \"SUP-A\"}. At\nleast one entry.",
      "additionalProperties": {
        "type": "string"
      }
    }
  },
  "additionalProperties": false
}