# First-Attempt Delivery Share Weighted Mean

> First-Attempt Delivery Share Weighted Mean 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 a weighted mean of first-attempt delivery share across multiple retail shipment data rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ar-retail-first-attempt-delivery-weighted-mean?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/first-attempt-delivery-share-weighted-mean-1e926e9c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TfpW-1muUvkpILXV1Kkoo

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 first-attempt-delivery-share-weighted-mean-1e926e9c -d '<json body>'
```

Example prompt: I have 3 retail location shipment records — location A had 100 attempted shipments and 87 first-attempt deliveries with weight 1, location B had 110 attempted and 95 delivered with weight 2, and location C had 200 attempted and 160 delivered with weight 1 — can you compute the weighted mean first-attempt delivery share across all three?

## When to prefer this

Choose this endpoint when you need a single aggregated weighted mean of first-attempt delivery share across multiple retail shipment records (2–200 rows) and you have custom weights to apply per record. It is ideal for rolling up delivery KPIs across stores, warehouses, or partners into one weighted metric without needing live order data or platform access.

## Known failure modes

- Fewer than 2 rows provided — minimum 2 rows required
- More than 200 rows submitted — exceeds maxItems limit
- Weights array length does not match rows array length
- attempted_shipments value is zero or negative — exclusiveMinimum constraint violated
- Missing required fields attempted_shipments or first_attempt_deliveries in a row
- Numeric values exceed maximum of 1,000,000,000,000

## How this service works

First-attempt delivery share - Weighted result mean: Weighted result mean for First-attempt delivery share. 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 weighted result mean report.

## Output

A single weighted result mean value representing the overall first-attempt delivery share across the provided retail shipment rows, calculated using the supplied weights. The report covers up to 200 rows and reflects supplied retail figures only with no live rates or platform data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "attempted_shipments",
     "first_attempt_deliveries"
    ],
    "properties": {
     "attempted_shipments": {
      "type": "number",
      "default": 100,
      "maximum": 1000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     },
     "first_attempt_deliveries": {
      "type": "number",
      "default": 87,
      "maximum": 1000000000000,
      "minimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "attempted_shipments": 100,
     "first_attempt_deliveries": 87
    },
    {
     "attempted_shipments": 110.00000000000001,
     "first_attempt_deliveries": 95.7
    },
    {
     "attempted_shipments": 100,
     "first_attempt_deliveries": 87
    },
    {
     "attempted_shipments": 110.00000000000001,
     "first_attempt_deliveries": 95.7
    }
   ],
   "maxItems": 200,
   "minItems": 2
  },
  "weights": {
   "type": "array",
   "items": {
    "type": "number",
    "default": 1,
    "maximum": 1000000000000,
    "minimum": 0
   },
   "default": [
    1,
    2,
    1,
    2
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/first-attempt-delivery-share-weighted-mean-1e926e9c/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)