# Mining Operating Contribution Margin — Base-100 Rebase Report

> Mining Operating Contribution Margin — Base-100 Rebase Report is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Computes a base-100 rebased index of mining operating contribution margin (contribution_usd / revenue_usd) across a series of time periods, anchored to a chosen base row.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-mining-cash-margin-rate-index?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-base-100-rebase-report-77ccbf7c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z0HSniJ0nLwpq3yzy5qkr

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-base-100-rebase-report-77ccbf7c -d '<json body>'
```

Example prompt: Rebase my mining contribution margin data to base 100 starting from the first row — I have 4 periods: revenue $100 with contribution $25, revenue $110 with contribution $27.50, revenue $100 with contribution $25, and revenue $110 with contribution $27.50.

## When to prefer this

Choose this endpoint when you need to normalize a time series or cross-sectional set of mining contribution margins to a base-100 index for relative comparison — particularly useful for trend analysis, benchmarking across periods, or standardizing operational finance metrics without requiring live price feeds. Prefer it over generic ratio calculators when working specifically with mining revenue/contribution data and needing the rebase anchor feature.

## Known failure modes

- Missing required fields (revenue_usd or contribution_usd) returns a validation error
- revenue_usd of zero or negative triggers exclusiveMinimum validation failure
- base_index out of range (>=rows.length or >199) returns an error
- Fewer than 2 rows in the array triggers minItems validation failure
- More than 200 rows triggers maxItems validation failure
- Extreme values near the maximum (1e16) may produce imprecise floating-point results

## How this service works

Mining operating contribution margin — Base-100 rebase report: Base-100 rebase report 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 base-100 rebase report report.

## Output

Returns a base-100 rebased index series for the mining operating contribution margin (contribution_usd / revenue_usd), with each row's margin expressed relative to the chosen base_index row scaled to 100. The formula and units are disclosed in the response. No live market prices or guaranteed returns are included.

## 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
  },
  "base_index": {
   "type": "integer",
   "default": 0,
   "maximum": 199,
   "minimum": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mining-operating-contribution-margin-base-100-rebase-report-77ccbf7c/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)