# Inventory Position Before-and-After Comparison

> Inventory Position Before-and-After Comparison is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).

Computes and compares inventory position metrics (on-hand, on-order, backorders) between two states, returning a structured before-and-after delta analysis.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-retail-inventory-position-compare?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/inventory-position-before-and-after-comparison-ec9d54e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xwHDXn3pvBKhmgVqDBX39

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 inventory-position-before-and-after-comparison-ec9d54e6 -d '<json body>'
```

Example prompt: Compare my inventory position before and after a stock change: before I had 100 units on hand, 30 on order, and 10 backorders; after I have 110 on hand, 33 on order, and 11 backorders — give me a before-and-after breakdown.

## When to prefer this

Choose this endpoint when you need a quick, local, offline-style calculation comparing two snapshots of retail inventory position (on-hand, on-order, backorders) without needing live ERP or WMS access. Ideal for scenario planning, reporting, or audit workflows where you supply both states and want a structured delta output for a flat per-call fee.

## Known failure modes

- Missing required fields in before or after object returns a validation error
- Values outside the 0–1,000,000,000,000 range rejected
- Non-numeric inputs cause schema validation failure
- Identical before and after inputs return zero-delta result with no error
- Network or payment authorization failure returns 402 or 5xx

## How this service works

Inventory position - Before and after comparison: Before and after comparison for Inventory position. 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 before and after comparison deliverable.

## Output

Returns a structured comparison of inventory position across two states, including before values, after values, and computed deltas for on-hand, on-order, and backorder quantities, along with a net inventory position change summary — all calculated locally without live system access.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "after": {
   "type": "object",
   "default": {
    "on_hand": 110.00000000000001,
    "on_order": 33,
    "backorders": 11
   },
   "required": [
    "on_hand",
    "on_order",
    "backorders"
   ],
   "properties": {
    "on_hand": {
     "type": "number",
     "default": 100,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "on_order": {
     "type": "number",
     "default": 30,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "backorders": {
     "type": "number",
     "default": 10,
     "maximum": 1000000000000,
     "minimum": 0
    }
   },
   "additionalProperties": false
  },
  "before": {
   "type": "object",
   "default": {
    "on_hand": 100,
    "on_order": 30,
    "backorders": 10
   },
   "required": [
    "on_hand",
    "on_order",
    "backorders"
   ],
   "properties": {
    "on_hand": {
     "type": "number",
     "default": 100,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "on_order": {
     "type": "number",
     "default": 30,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "backorders": {
     "type": "number",
     "default": 10,
     "maximum": 1000000000000,
     "minimum": 0
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/inventory-position-before-and-after-comparison-ec9d54e6/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)