# Margin of Safety Rolling Mean Report

> Margin of Safety Rolling Mean Report is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Calculates trailing full-window rolling means over a series of margin-of-safety observations, preserving gaps for invalid rows, and returns results with formula, units, and limitations.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-finance-margin-safety-rolling?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/margin-of-safety-rolling-mean-report-8840c164
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0oVZCmXMbHkYHkktLtlob

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 margin-of-safety-rolling-mean-report-8840c164 -d '<json body>'
```

Example prompt: Can you calculate the rolling mean margin of safety over a 3-period window for these four quarters of sales data: Q1 actual $10,000 / break-even $7,000, Q2 actual $11,000 / break-even $7,700, Q3 actual $10,500 / break-even $7,350, Q4 actual $12,000 / break-even $8,400?

## When to prefer this

Choose this endpoint when you need a statistical rolling-mean smoothing of margin-of-safety figures across an ordered series of periods, with explicit formula documentation and gap-preservation for invalid rows. Prefer it over a simple single-period calculator when trend analysis across multiple windows is needed, and over a live-feed service when working with supplied historical or forecast figures rather than real-time data.

## Known failure modes

- Fewer than 2 rows provided — minimum input size not met
- Window size exceeds number of rows — no valid windows can be formed
- actual_sales is zero or negative — exclusiveMinimum constraint violation
- Sales figures use inconsistent currencies or periods — results will be mathematically valid but financially misleading
- Window larger than max allowed (200) — schema validation error

## How this service works

Margin of safety - Rolling mean report: Calculate trailing full-window means over ordered observations, preserving invalid-row gaps. Metric: Margin of safety. 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 rolling mean report report.

## Output

A JSON object containing the rolling mean margin-of-safety values for each valid full window across the input rows, along with the formula used, measurement units, and stated limitations of the calculation. Rows that cannot form a complete window or are flagged invalid are preserved as gaps in the output.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "actual_sales",
     "break_even_sales"
    ],
    "properties": {
     "actual_sales": {
      "type": "number",
      "default": 10000,
      "maximum": 1000000000000,
      "minimum": 0,
      "description": "Amount in a consistent supplied currency and reporting period",
      "exclusiveMinimum": 0
     },
     "break_even_sales": {
      "type": "number",
      "default": 7000,
      "maximum": 1000000000000,
      "minimum": 0,
      "description": "Amount in a consistent supplied currency and reporting period"
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "actual_sales": 10000,
     "break_even_sales": 7000
    },
    {
     "actual_sales": 11000,
     "break_even_sales": 7700.000000000001
    },
    {
     "actual_sales": 10000,
     "break_even_sales": 7000
    },
    {
     "actual_sales": 11000,
     "break_even_sales": 7700.000000000001
    }
   ],
   "maxItems": 200,
   "minItems": 2
  },
  "window": {
   "type": "integer",
   "default": 2,
   "maximum": 200,
   "minimum": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/margin-of-safety-rolling-mean-report-8840c164/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)