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Pay once · No Friday subscription

Inventory Reorder-Point and Safety-Stock Calculator

Know the exact stock level that should trigger a reorder - with a buffer sized to your risk.

Amazon USWalmart USShopifyeBay US

Included in the $29.00 Listing Launch Pack

Agent/API — $0.25
Review-first
Every output stays a draft. No credentials
No seller-account login required. Private delivery
Inputs expire after 24 hours. Clear recourse
Digital-service refund policy.

What you receive

  • Reorder point in whole units, with the demand-during-lead-time and safety-stock split
  • Safety stock sized from demand and lead-time variability at your service level
  • Inventory position, days of cover, and a reorder-now / sufficient verdict
  • Units below the reorder point and a suggested order quantity honoring your minimum
  • Safety-stock value and method notes for a human before any purchase order

Who it is for

Sellers, agencies, and agents deciding when and how much to reorder without over- or under-stocking.

Delivery: usually a structured result, workbook, or ZIP depending on the tool.

How it stays safe

Friday performs arithmetic only on the averages, variability, service level, and stock position you supply. The averages are your inputs, not a demand forecast, and the reorder point is a planning threshold, not a guarantee against a stockout. Friday reads no sales history, supplier record, marketplace, or seller account, does not publish listings, and orders, reserves, or changes nothing. This is not inventory-planning, accounting, or financial advice.

Synthetic sample

See the deliverable structure before buying

{
  "publish_status": "draft_needs_review",
  "z_score": 1.6449,
  "demand_during_lead_time_units": 168,
  "safety_stock_units": 65,
  "reorder_point_units": 233,
  "inventory_position_units": 90,
  "days_of_cover": 7.5,
  "units_below_reorder_point": 143,
  "suggested_order_quantity_units": 143,
  "safety_stock_value_usd": 520.0,
  "reorder_now": true,
  "stockout_before_replenishment": true,
  "verdict": "reorder_now",
  "safety": "Arithmetic on the averages and variability you supply; not a demand forecast or a stockout guarantee. No account or supplier system is read and nothing is ordered, reserved, or published."
}

This sample uses synthetic facts. Your output is generated only from the facts you submit.

Agent API and x402 details

POST /v1/inventory/reorder-point

Exact x402 price: $0.25. Use the public OpenAPI schema and Base USDC payment flow. The response returns a private job URL and temporary token.

Open the API documentation →

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