# GridPulse Appliance Running-Cost Calculator

> GridPulse Appliance Running-Cost Calculator is a paid API for AI agents from gridpulse-amber.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Calculates the exact annual running cost of a home appliance at local electricity rates and returns a side-by-side upgrade comparison.

## Facts

- Endpoint: GET https://gridpulse-amber.vercel.app/api/energy/appliance
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gridpulse-appliance-running-cost-calculator-42f91167
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QlKyrQd0Z60DtzFd5VwcU

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 gridpulse-appliance-running-cost-calculator-42f91167
```

Example prompt: How much does my 15-year-old 650W chest freezer cost to run each year at Texas electricity rates, and would upgrading to a modern Energy Star model save me money?

## When to prefer this

Use this endpoint when a homeowner or energy agent needs a precise, localized running-cost figure for a specific appliance and wants to see whether upgrading to a more efficient model is financially worthwhile. Prefer this over generic energy calculators when local electricity rate accuracy and upgrade ROI comparison are both required in a single call.

## Known failure modes

- Unknown appliance type returns error or empty result
- Invalid or unsupported state/location returns rate lookup failure
- Missing wattage or usage hours causes incomplete cost calculation
- Electricity rate data unavailable for a given region
- Upgrade comparison unavailable for niche appliance categories

## How this service works

Appliance electricity running-cost calculator — exact running cost at local electricity rates with an efficiency upgrade comparison. For homeowner and energy agents.

## Output

Returns the exact annual running cost of the specified appliance at local retail electricity rates for the given state, plus a side-by-side upgrade comparison showing cost of a more efficient model and estimated annual savings.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "appliance"
 ],
 "properties": {
  "state": {
   "type": "string",
   "description": "2-letter US state code for local electricity rates"
  },
  "age_years": {
   "type": "integer",
   "description": "Appliance age in years (affects upgrade ROI calculation)"
  },
  "appliance": {
   "type": "string",
   "description": "Appliance type (hvac, water-heater, refrigerator, washer, dryer, dishwasher, lighting)"
  },
  "usage_hours": {
   "type": "integer",
   "description": "Daily usage hours (default varies by appliance)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gridpulse-appliance-running-cost-calculator-42f91167/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gridpulse-amber.vercel.app](https://www.zero.xyz/host/gridpulse-amber.vercel.app/llms.txt)