# Economic Order Quantity – Local Finite-Change Elasticity

> Economic Order Quantity – Local Finite-Change Elasticity is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).

Computes local finite-change elasticity of the Economic Order Quantity (EOQ) formula with respect to a chosen input variable, given baseline retail figures and a percentage step size.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-retail-economic-order-elasticity?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/economic-order-quantity-local-finite-change-elasticity-1c322aaa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CbzYfc-49zUS8LNBDWxhs

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 economic-order-quantity-local-finite-change-elasticity-1c322aaa -d '<json body>'
```

Example prompt: Calculate the local finite-change elasticity of EOQ with respect to annual demand, using a baseline of annual demand 1000 units, order cost $20, and holding cost $2 per unit, with a 1% step.

## When to prefer this

Use this endpoint when you need a quick, local sensitivity metric for the EOQ formula — specifically a finite-difference elasticity — given your own retail baseline numbers, without needing live inventory data, platform integrations, or order execution. Ideal for scenario planning, supply chain modeling, and sensitivity dashboards where you already have demand, order cost, and holding cost figures.

## Known failure modes

- Invalid or missing baseline field values (e.g. annual_holding_cost_per_unit = 0 triggers exclusiveMinimum violation)
- step_percent outside [0.01, 10] range returns validation error
- Unsupported field enum value causes schema rejection
- Negative input values violate minimum constraints
- Payment not received or insufficient USDC balance blocks execution

## How this service works

Economic order quantity - Local finite-change elasticity: Local finite-change elasticity for Economic order quantity. Supplied retail figures only. Local calculation and scenario analysis; no live inventory, account access, platform fee lookup or order execution. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded local finite-change elasticity deliverable.

## Output

Returns a local finite-change elasticity value indicating how responsive the Economic Order Quantity is to a marginal percentage change in the specified input variable (annual demand, order cost, or annual holding cost per unit), calculated from the supplied baseline figures and step size. No live data, inventory access, or order execution is involved.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "field": {
   "enum": [
    "annual_demand",
    "order_cost",
    "annual_holding_cost_per_unit"
   ],
   "type": "string",
   "default": "annual_demand"
  },
  "baseline": {
   "type": "object",
   "default": {
    "order_cost": 20,
    "annual_demand": 1000,
    "annual_holding_cost_per_unit": 2
   },
   "required": [
    "annual_demand",
    "order_cost",
    "annual_holding_cost_per_unit"
   ],
   "properties": {
    "order_cost": {
     "type": "number",
     "default": 20,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "annual_demand": {
     "type": "number",
     "default": 1000,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "annual_holding_cost_per_unit": {
     "type": "number",
     "default": 2,
     "maximum": 1000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  },
  "step_percent": {
   "type": "number",
   "default": 1,
   "maximum": 10,
   "minimum": 0.01
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/economic-order-quantity-local-finite-change-elasticity-1c322aaa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)