HALOWERK Energy
Cheapest end-to-end x402 purchase test. Always returns a 402 challenge without payment and the current full NegPrice decision after a valid USDC payment.
- Category
- Developer tools
- Starting price
- $0.001
- Paid calls · 30 days
- 97
- Unique payers · 30 days
- 41
Paid endpoints
5 endpoints, sorted by usage. Prices are per request.
- GET/demo/paid-sample
Cheapest end-to-end x402 purchase test. Always returns a 402 challenge without payment and the current full NegPrice decision after a valid USDC payment.
$0.001Base28calls / 30d - POST/price/spot
Trading and dispatch agents buy this endpoint to obtain the current German EPEX spot price for immediate decisions.
$0.001Base23calls / 30d - POST/carbon/now
Aktuelle CO2-Intensität des deutschen Strommix.
$0.001Base22calls / 30d - POST/predict/negative-price
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.
$0.001Base21calls / 30d - POST/v3/market-brief
Returns licensed ENTSO-E and SMARD spot-market context for compute, DePIN, battery and power-trading agents: published day-ahead prices, volatility, load, renewable share when available, the observed share of published negative-price hours, uncertainty, freshness and expiry.
$0.05Base3calls / 30d