Battery, EV, and trading agents buy this endpoint to receive calibrated 2h/4h/6h negative-
Battery, EV, and trading agents buy this endpoint to receive calibrated 2h/4h/6h negative-price probabilities, reviewed threshold profiles and an executable response policy.
1000 (raw units)
price
6
calls / 30d
5
unique payers
2026-09-08
updated
Provider
energy.halowerk.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"policy_profile": "balanced"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"endpoint": "/predict/negative-price",
"ok": true,
"result": {
"decision_engine": {
"recommended_action": "execute_shift_to_target_window",
"should_act": true
},
"expires_at": "2026-07-12T13:00:00.000Z",
"horizons": [
{
"lead_hours": 2,
"probability": 0.85
}
],
"model": {
"version": "4.1"
},
"prediction": {
"negative_price_in_2h": true,
"probability": 0.85
},
"risk_flags": [],
"schema_version": "negprice_signal_v1"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"policy_profile": {
"default": "balanced",
"description": "Selects the reviewed probability threshold profile without changing the underlying calibrated probabilities.",
"enum": [
"balanced",
"utility",
"precision",
"recall"
],
"type": "string"
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": true,
"properties": {
"endpoint": {
"type": "string"
},
"ok": {
"type": "boolean"
},
"result": {
"additionalProperties": true,
"properties": {
"decision_engine": {
"type": "object"
},
"expires_at": {
"type": [
"string",
"null"
]
},
"horizons": {
"items": {
"type": "object"
},
"type": "array"
},
"prediction": {
"type": "object"
},
"schema_version": {
"type": "string"
}
},
"required": [
"schema_version",
"expires_at",
"prediction",
"horizons",
"decision_engine"
],
"type": "object"
}
},
"required": [
"ok",
"endpoint",
"result"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://energy.halowerk.com/predict/negative-price" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://energy.halowerk.com/predict/negative-price");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://energy.halowerk.com/predict/negative-price")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/7609.json, and this resource appears in /discovery/resources and /discovery/search.