# Inventory List Difference Checker

> Inventory List Difference Checker is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).

Compares two string arrays and returns the unique values in each list plus the values shared between them, optimized for inventory workflows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/compare-lists-inventory?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/inventory-list-difference-checker-15e5871f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uCZfQfzOl40XBl1cOsvDI

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-list-difference-checker-15e5871f -d '<json body>'
```

Example prompt: Compare these two inventory lists for me — left list is ['widget-A', 'widget-B', 'widget-C'] and right list is ['widget-B', 'widget-D'] — and tell me which items are unique to each list and which ones they share.

## When to prefer this

Choose this endpoint when you need a lightweight, affordable ($0.01/call) set-comparison operation specifically framed around inventory workflows — finding what's unique to each list and what's shared — without setting up custom code or a database query. Best suited for ad-hoc agent tasks involving two discrete string-based item lists.

## Known failure modes

- Non-array input for left or right fields returns a validation error
- Empty arrays on both sides return empty unique and shared sets
- Very large arrays may time out or hit payload limits
- Duplicate values within a single list may produce unexpected set behavior depending on deduplication logic

## How this service works

Inventory List difference checker: Compare two lists and return unique and shared values. Tailored for inventory workflows.

## Output

Returns a structured object containing: items unique to the left list, items unique to the right list, and items shared by both lists — effectively the set difference and intersection of the two input arrays.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "left": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "default": [
    "a",
    "b"
   ]
  },
  "right": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "default": [
    "b",
    "c"
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/inventory-list-difference-checker-15e5871f/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)