# Mining Operating Contribution Margin — Record Ranking

> Mining Operating Contribution Margin — Record Ranking 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).

Ranks a set of mining operation records by their operating contribution margin rate (contribution_usd / revenue_usd), returning a bounded ranking report.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-mining-cash-margin-rate-rank?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-record-ranking-b6930925
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_o6mecSuJeauiTghe8X__y

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-record-ranking-b6930925 -d '<json body>'
```

Example prompt: I have 4 mining operations — Operation A brought in $500,000 revenue with $120,000 contribution, Operation B had $300,000 revenue with $90,000 contribution, Operation C had $800,000 revenue with $160,000 contribution, and Operation D had $250,000 revenue with $80,000 contribution. Can you rank them by their operating contribution margin rate?

## When to prefer this

Use this endpoint when you have multiple mining operation records and need a quick, inexpensive ($0.01 USDC) ranked comparison of their operating contribution margin rates using your own supplied revenue and contribution figures. Prefer this over manual calculation when comparing 2–200 operations at once and you need a structured ranking report with formula and unit disclosure rather than raw numbers.

## Known failure modes

- Fewer than 2 rows supplied — minimum row count not met
- revenue_usd value of 0 or negative — excluded by exclusiveMinimum constraint
- contribution_usd exceeds allowable bounds (above 10^16 or below -10^12)
- More than 200 rows supplied — maxItems exceeded
- Missing required fields (contribution_usd or revenue_usd) in any row
- Payment not processed — x402 payment required before response is returned

## How this service works

Mining operating contribution margin — Record ranking: Record ranking 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 record ranking report.

## Output

A bounded record ranking report listing each supplied mining operation row ranked by its operating contribution margin rate (contribution_usd divided by revenue_usd), computed from the user-supplied assumptions. Includes formula and units. No live prices or guaranteed returns are provided.

## 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-record-ranking-b6930925/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)