# EOQ & Holding-Cost Optimizer

> EOQ & Holding-Cost Optimizer is a paid API for AI agents from x402-niche-briefs.fly.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).

Calculates the Economic Order Quantity (EOQ) and breaks down annual ordering and holding costs given demand, order cost, unit cost, and holding rate.

## Facts

- Endpoint: GET https://x402-niche-briefs.fly.dev/v1/eoq-holding-cost-optimizer?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/eoq-holding-cost-optimizer-136f9298
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_O9OmkTL36KEPeaTw7hbAn

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability eoq-holding-cost-optimizer-136f9298
```

Example prompt: What's the optimal order quantity and annual inventory costs for a product with 5,000 units of annual demand, $40 per order cost, $12 unit cost, and a 25% annual holding rate?

## When to prefer this

Use this endpoint when you need a quick, deterministic EOQ calculation with a full cost breakdown — especially in automated inventory planning pipelines, agent workflows comparing SKU reorder strategies, or when you want both the optimal order quantity and the annual cost decomposition in a single call. Prefer this over manual formula computation or spreadsheet-based tools when integrating into an agentic workflow that already uses x402 micropayments.

## Known failure modes

- Missing required query parameters (annual_demand, order_cost_usd, unit_cost_usd, holding_pct) returns an error
- Non-numeric or zero values for demand, costs, or holding rate may cause computation errors or division-by-zero
- Holding percentage expressed as a whole number vs decimal fraction may yield unexpected results if format is ambiguous
- Payment failure via x402 protocol results in 402 response before computation occurs

## How this service works

Economic order quantity and annual cost.

## Output

Returns the calculated EOQ in units, number of orders per year, annual ordering cost in USD, annual holding cost in USD, the echoed input parameters, and a timestamp. All monetary values are in USD.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "annual_demand",
      "order_cost_usd",
      "unit_cost_usd",
      "holding_pct"
     ],
     "properties": {
      "holding_pct": {
       "type": "string",
       "description": "Holding %/yr"
      },
      "annual_demand": {
       "type": "string",
       "description": "Annual units"
      },
      "unit_cost_usd": {
       "type": "string",
       "description": "Unit cost"
      },
      "order_cost_usd": {
       "type": "string",
       "description": "Cost per order"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "input",
      "eoq_units",
      "orders_per_year",
      "annual_order_cost_usd",
      "annual_holding_cost_usd",
      "as_of"
     ],
     "properties": {
      "as_of": {
       "type": "string"
      },
      "input": {
       "type": "object",
       "required": [
        "annual_demand",
        "order_cost_usd",
        "unit_cost_usd",
        "holding_pct"
       ],
       "properties": {
        "holding_pct": {
         "type": "number"
        },
        "annual_demand": {
         "type": "number"
        },
        "unit_cost_usd": {
         "type": "number"
        },
        "order_cost_usd": {
         "type": "number"
        }
       }
      },
      "eoq_units": {
       "type": "number"
      },
      "orders_per_year": {
       "type": "number"
      },
      "annual_order_cost_usd": {
       "type": "number"
      },
      "annual_holding_cost_usd": {
       "type": "number"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/eoq-holding-cost-optimizer-136f9298/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-niche-briefs.fly.dev](https://www.zero.xyz/host/x402-niche-briefs.fly.dev/llms.txt)