# Mining Fleet Spare Coverage — Adjacent Period Changes

> Mining Fleet Spare Coverage — Adjacent Period Changes 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 adjacent period changes in spare coverage ratios for a mining fleet, given sequences of spare and operating unit counts.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-mining-spares-coverage-period-changes?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-fleet-spare-coverage-adjacent-period-changes-f204cb10
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nE3LuwkIJFrDZ3ZAuBtFg

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-fleet-spare-coverage-adjacent-period-changes-f204cb10 -d '<json body>'
```

Example prompt: Calculate the adjacent period changes in spare coverage for my mining fleet — I have two periods: period 1 with 8 spare units and 120 operating units, period 2 with 6 spare units and 110 operating units. Give me the bounded report.

## When to prefer this

Use this endpoint when you need a structured, formula-disclosed period-over-period comparison of spare coverage ratios for a mining fleet, given only spare and operating unit counts. Prefer this over generic spreadsheet tools when you want a bounded, auditable report with consistent methodology for 2–200 periods. Not suitable for real-time price feeds, live mining telemetry, or financial return projections.

## Known failure modes

- Fewer than 2 rows submitted — minimum of 2 period rows required
- spare_units or operating_units values out of allowed range (negative or exceeding maximum)
- operating_units set to zero (exclusiveMinimum enforced)
- More than 200 rows submitted — maxItems limit exceeded
- Malformed JSON body or missing required fields
- Payment not processed — 0.01 USDC x402 charge required per call

## How this service works

Mining fleet spare coverage — Adjacent period changes: Adjacent period changes for Mining fleet spare coverage. 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 adjacent period changes report.

## Output

A bounded adjacent period changes report showing how the spare-to-operating unit coverage ratio shifted between each consecutive pair of input periods, based on supplied mining assumptions with formula and units disclosed. Does not include live prices, live mining data, or guaranteed returns.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "spare_units",
     "operating_units"
    ],
    "properties": {
     "spare_units": {
      "type": "number",
      "default": 5,
      "maximum": 10000000000000000,
      "minimum": 0
     },
     "operating_units": {
      "type": "number",
      "default": 100,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "spare_units": 5,
     "operating_units": 100
    },
    {
     "spare_units": 5.5,
     "operating_units": 110.00000000000001
    },
    {
     "spare_units": 5,
     "operating_units": 100
    },
    {
     "spare_units": 5.5,
     "operating_units": 110.00000000000001
    }
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mining-fleet-spare-coverage-adjacent-period-changes-f204cb10/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)