# Observed Unit Sales Velocity – Benchmark Correlation

> Observed Unit Sales Velocity – Benchmark Correlation is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Computes a benchmark correlation report comparing observed retail unit sales velocity data (sold units over observed days) against a set of user-supplied benchmark values.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ar-retail-unit-sales-velocity-correlation?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/observed-unit-sales-velocity-benchmark-correlation-c6da1619
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AmKVE-aFFQNL2OYfJnbaH

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 observed-unit-sales-velocity-benchmark-correlation-c6da1619 -d '<json body>'
```

Example prompt: I have 5 retail products — their sold units and observation periods — and I want to see how their daily sales velocities correlate against benchmarks of 10, 20, and 30 units per day. Can you run a bounded benchmark correlation report on that data?

## When to prefer this

Choose this endpoint when you need a fast, low-cost ($0.01 USDC) statistical correlation between retail unit sales velocity figures and a set of benchmark targets, using only your own supplied data (up to 200 records). Prefer it over general analytics platforms when you want a bounded, no-frills correlation report with no platform login, no live data feeds, and no order execution — just pure benchmark correlation computation on retail sales velocity.

## Known failure modes

- Fewer than 2 rows supplied — minimum of 2 data points required
- Fewer than 2 benchmark values supplied — minimum of 2 benchmarks required
- More than 200 rows submitted — maxItems limit exceeded
- observed_days value of 0 or less — exclusiveMinimum constraint violated
- Missing required fields sold_units or observed_days in any row
- Numeric values outside allowed range (negative days, extreme unit counts)
- Payment not confirmed — $0.01 USDC required per call via x402 protocol

## How this service works

Observed unit sales velocity - Benchmark correlation: Benchmark correlation for Observed unit sales velocity. Supplied retail figures only, up to 200 records. No platform access, live rates or order execution. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded benchmark correlation report.

## Output

Returns a bounded benchmark correlation report summarizing how the observed unit sales velocity data (sold units per observed days, up to 200 rows) correlates against the provided benchmark values. Output is a statistical correlation analysis limited to the supplied retail figures — no live market rates, platform access, or order execution included.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "sold_units",
     "observed_days"
    ],
    "properties": {
     "sold_units": {
      "type": "number",
      "default": 84,
      "maximum": 1000000000000,
      "minimum": 0
     },
     "observed_days": {
      "type": "number",
      "default": 7,
      "maximum": 1000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "sold_units": 84,
     "observed_days": 7
    },
    {
     "sold_units": 92.4,
     "observed_days": 7.700000000000001
    },
    {
     "sold_units": 84,
     "observed_days": 7
    },
    {
     "sold_units": 92.4,
     "observed_days": 7.700000000000001
    }
   ],
   "maxItems": 200,
   "minItems": 2
  },
  "benchmarks": {
   "type": "array",
   "items": {
    "type": "number",
    "default": 1,
    "maximum": 1000000000000000000,
    "minimum": -1000000000000000000
   },
   "default": [
    10,
    20,
    30,
    40
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/observed-unit-sales-velocity-benchmark-correlation-c6da1619/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)