# AEML Grid Region Gauge

> AEML Grid Region Gauge is a paid API for AI agents from aeml-x402.zeabur.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-13).

Returns a three-leg energy grid stress snapshot for a given US power region: temperature-driven demand pressure (HDD+CDD), renewable generation (solar+wind), energy CPI inflation vs natural gas price, plus a cross-validated narrative.

## Facts

- Endpoint: GET https://aeml-x402.zeabur.app/gauge/grid-region
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aeml-grid-region-gauge-c8612cb4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VK4PWzkSTAkhJdNTLnCUY

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 aeml-grid-region-gauge-c8612cb4
```

Example prompt: Pull the grid stress gauge for ERCOT — I want to see demand pressure from degree days, how much solar and wind are contributing, and whether energy inflation is elevated, plus any cross-validated narrative about current grid conditions.

## When to prefer this

Choose this endpoint when you need a pre-assembled, multi-signal energy grid stress snapshot for a specific US power region in a single call, with verifiable provenance traceable to official ERA5 and FRED sources, rather than assembling degree-day, renewable, and commodity signals separately. Particularly valuable when cross-validated narrative and cryptographic record hashes for auditability are required.

## Known failure modes

- Invalid or unsupported loc parameter returns an error
- Stale data flagged in provenance freshness field when upstream ERA5 or FRED sources are delayed
- Missing legs if a signal source is temporarily unavailable
- Payment not received or x402 auth failure blocks response
- Grid region code not recognized returns an error response

## How this service works

[3-LEG] Power-grid chain, one grid region (?loc=us-ercot): leading demand pressure from heating and cooling degree days -> current renewable availability, solar and wind -> realized energy inflation (CPI energy year-over-year) and gas price (confirmation gate). A sequential chain, not one reading - confidence = how many legs are lit, in order. Sources: EIA, BLS, Open-Meteo. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.

## Output

A JSON object containing: a neutrality declaration (nature), location key, named legs object with signal readings (signal_id, current value, observed_at, data age, record hash) for HDD/CDD, solar, wind, energy CPI, and natural gas price; a cross-line narrative describing demand vs renewables vs inflation alignment; provenance block with freshness, data lineage traceable to ERA5 and FRED; optional decision_points listing swappable tags; Ed25519-signed citation for zero-trust verification; data grade and scope disclosures.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "queryParams"
   ],
   "properties": {
    "type": {
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "loc"
     ],
     "properties": {
      "loc": {
       "type": "string",
       "examples": [
        "us-ercot",
        "us-caiso",
        "us-pjm",
        "us-miso",
        "us-nyiso",
        "eu-germany"
       ],
       "description": "required - location id; full list at free /gauge/preview",
       "x-accepted-values": {
        "all": "https://api.truthbear.co/schemas/gauge-grid-region.input.json",
        "shown": 6,
        "total": 12
       }
      }
     },
     "additionalProperties": false
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "const": "json"
    },
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aeml-grid-region-gauge-c8612cb4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aeml-x402.zeabur.app](https://www.zero.xyz/host/aeml-x402.zeabur.app/llms.txt)