# Days Inventory Outstanding – Distribution Summary

> Days Inventory Outstanding – Distribution Summary is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-23).

Summarises up to 200 Days Inventory Outstanding (DIO) observations into a statistical distribution report with quantiles and population standard deviation.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-finance-inventory-days-summary?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/days-inventory-outstanding-distribution-summary-32f227b2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_V0oXkvAjmOC5LMSPFCi7m

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 days-inventory-outstanding-distribution-summary-32f227b2 -d '<json body>'
```

Example prompt: Can you summarise the distribution of our days inventory outstanding figures across these 5 quarterly periods: Q1 had average inventory 4800 and cost of sales 28000 over 90 days, Q2 had 5200 and 31000 over 91 days, Q3 had 5500 and 33000 over 92 days, Q4 had 6000 and 36000 over 90 days, and Q5 had 5100 and 30000 over 91 days — I want quantiles and standard deviation.

## When to prefer this

Choose this endpoint when you have a batch of pre-calculated or raw DIO inputs (2–200 observations) and need a statistical distribution summary — quantiles and population standard deviation — rather than a single point calculation. It is purpose-built for DIO and returns formula and unit metadata alongside the statistics, making it ideal for finance reporting, benchmarking, and audit trails where traceability matters.

## Known failure modes

- Fewer than 2 rows supplied — minimum item count not met
- cost_of_sales value of zero or below — exclusiveMinimum violated
- More than 200 rows submitted — maxItems exceeded
- period_days outside 1–3660 range — validation error
- Missing required fields (average_inventory, cost_of_sales, or period_days) in any row
- Inconsistent currency or reporting period units across rows — results may be misleading but no error thrown

## How this service works

Days inventory outstanding - Distribution summary: Summarise up to 200 calculated observations with quantiles and population standard deviation. Metric: Days inventory outstanding. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded distribution summary report.

## Output

A JSON response containing a statistical distribution summary of the submitted Days Inventory Outstanding observations, including quantiles (e.g. min, Q1, median, Q3, max), population standard deviation, the DIO formula used, units, and stated limitations of the analysis.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "average_inventory",
     "cost_of_sales",
     "period_days"
    ],
    "properties": {
     "period_days": {
      "type": "integer",
      "default": 365,
      "maximum": 3660,
      "minimum": 1
     },
     "cost_of_sales": {
      "type": "number",
      "default": 30000,
      "maximum": 1000000000000,
      "minimum": 0,
      "description": "Amount in a consistent supplied currency and reporting period",
      "exclusiveMinimum": 0
     },
     "average_inventory": {
      "type": "number",
      "default": 5000,
      "maximum": 1000000000000,
      "minimum": 0,
      "description": "Amount in a consistent supplied currency and reporting period"
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "period_days": 365,
     "cost_of_sales": 30000,
     "average_inventory": 5000
    },
    {
     "period_days": 402,
     "cost_of_sales": 33000,
     "average_inventory": 5500
    },
    {
     "period_days": 365,
     "cost_of_sales": 30000,
     "average_inventory": 5000
    },
    {
     "period_days": 402,
     "cost_of_sales": 33000,
     "average_inventory": 5500
    }
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/days-inventory-outstanding-distribution-summary-32f227b2/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)