# CRM List Difference Checker

> CRM 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 their unique and shared values, optimized for CRM list reconciliation workflows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/compare-lists-crm?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/crm-list-difference-checker-d83c2d86
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_o5uB4OI9baW76pbpj3NgA

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 crm-list-difference-checker-d83c2d86 -d '<json body>'
```

Example prompt: Compare these two CRM contact lists and tell me which email addresses are shared between them and which are unique to each — left list is ["alice@acme.com","bob@acme.com","carol@acme.com"] and right list is ["bob@acme.com","carol@acme.com","dave@acme.com"].

## When to prefer this

Choose this endpoint when you need a lightweight, CRM-oriented list diff operation on string arrays without setting up a full database query or ETL pipeline. Ideal for quick one-off reconciliation tasks in CRM automation workflows where you need to identify overlap and exclusivity between two contact, lead, or account lists.

## Known failure modes

- Non-array inputs cause validation errors
- Very large arrays may time out or return partial results
- Case-sensitive comparison may miss duplicates with differing capitalization
- Empty arrays on either side return all elements as unique to the non-empty side
- Duplicate values within a single list may produce unexpected set behavior

## How this service works

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

## Output

Returns a structured object containing: the set of values shared by both lists (intersection), values present only in the left list, and values present only in the right list — enabling quick reconciliation of CRM data without manual comparison.

## 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/crm-list-difference-checker-d83c2d86/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)