# Mining Operating Contribution Margin — Local Finite-Change Elasticity

> Mining Operating Contribution Margin — Local Finite-Change Elasticity 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 the local finite-change elasticity of a mining operation's contribution margin with respect to a specified field, given baseline revenue and contribution figures and a percentage step size.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-mining-cash-margin-rate-elasticity?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-local-finite-change-elasticity-d33ffa16
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oe83e-Y8BbmT1abBh12QJ

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-local-finite-change-elasticity-d33ffa16 -d '<json body>'
```

Example prompt: Compute the local finite-change elasticity of my mining operation's contribution margin — baseline revenue is $100 and baseline contribution is $25, field is contribution_usd, and use a 1% step — and give me the elasticity report.

## When to prefer this

Choose this endpoint when you need a quick, low-cost ($0.01 USDC) numerical sensitivity report specifically for mining operating contribution margin elasticity — particularly when you have fixed baseline assumptions and want to understand how the margin metric responds to small local perturbations in revenue or contribution. Prefer this over general financial APIs when the domain is specifically crypto/hardware mining contribution margin, and when a finite-difference (not analytical) elasticity is acceptable.

## Known failure modes

- Revenue baseline at or below zero returns a validation error (exclusiveMinimum enforced)
- Step percent outside 0.01–10 range returns a schema validation error
- Invalid field enum value (anything other than contribution_usd or revenue_usd) returns a bad request error
- Extremely large baseline values near the maximum may produce numerical precision artifacts
- Missing required baseline fields triggers a request body validation failure

## How this service works

Mining operating contribution margin — Local finite-change elasticity: Local finite-change elasticity 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 local finite-change elasticity report.

## Output

A bounded local finite-change elasticity report for the mining operating contribution margin, showing the elasticity coefficient computed by finite difference at the specified baseline and step size. The report is based solely on the supplied mining assumptions, with the formula and units disclosed; no live prices or guaranteed returns are included.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "field": {
   "enum": [
    "contribution_usd",
    "revenue_usd"
   ],
   "type": "string",
   "default": "contribution_usd"
  },
  "baseline": {
   "type": "object",
   "default": {
    "revenue_usd": 100,
    "contribution_usd": 25
   },
   "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
  },
  "step_percent": {
   "type": "number",
   "default": 1,
   "maximum": 10,
   "minimum": 0.01
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mining-operating-contribution-margin-local-finite-change-elasticity-d33ffa16/health.json
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