# Mining Operating Contribution Margin — Distribution Summary

> Mining Operating Contribution Margin — 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 2026-10-15).

Computes a distribution summary of the operating contribution margin rate across a set of mining operation records, given paired revenue and contribution USD values.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-mining-cash-margin-rate-summary?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mining-operating-contribution-margin-distribution-summary-da9a58f0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WTdJBbxTnXtgXaOOnfxGU

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 mining-operating-contribution-margin-distribution-summary-da9a58f0 -d '<json body>'
```

Example prompt: Can you give me a distribution summary of the operating contribution margin rate for my mining operations? I have four data points: revenues of $100, $110, $100, and $110, with corresponding contributions of $25, $27.50, $25, and $27.50.

## When to prefer this

Choose this endpoint when you need a statistical distribution summary of operating contribution margin rates across multiple mining operation records and already have paired revenue and contribution figures. It is purpose-built for mining economics analysis with a fixed, bounded report format. Prefer this over generic statistics APIs when your use case is specifically mining cash margin rate distribution and you want a single, affordable ($0.01 USDC) report with formula and units disclosed.

## Known failure modes

- Fewer than 2 rows supplied — minimum array size not met
- revenue_usd is zero or negative — exclusiveMinimum constraint violated
- contribution_usd exceeds maximum bound — value too large
- More than 200 rows supplied — maxItems constraint exceeded
- Missing required fields contribution_usd or revenue_usd in any row
- Payment not processed — 0.01 USDC x402 payment required per call

## How this service works

Mining operating contribution margin — Distribution summary: Distribution summary for Mining operating contribution margin. Supplied mining assumptions only; formula and units disclosed. No live prices, mining or guaranteed return. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded distribution summary report.

## Output

A bounded distribution summary report covering the contribution margin rate (contribution_usd / revenue_usd) across all supplied row pairs, including statistical distribution characteristics such as percentiles, spread, and central tendency — computed from the supplied assumptions only, with no live prices or guaranteed returns.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "contribution_usd",
     "revenue_usd"
    ],
    "properties": {
     "revenue_usd": {
      "type": "number",
      "default": 100,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     },
     "contribution_usd": {
      "type": "number",
      "default": 25,
      "maximum": 10000000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "revenue_usd": 100,
     "contribution_usd": 25
    },
    {
     "revenue_usd": 110.00000000000001,
     "contribution_usd": 27.500000000000004
    },
    {
     "revenue_usd": 100,
     "contribution_usd": 25
    },
    {
     "revenue_usd": 110.00000000000001,
     "contribution_usd": 27.500000000000004
    }
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mining-operating-contribution-margin-distribution-summary-da9a58f0/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)