energy.halowerk.com publishes 6 machine-payable endpoints over the x402 protocol, priced from $0.001 to $0.05 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /demo/paid-sample | GET | $0.001 | 402 |
| /optimizer/cheapest-window | GET | $0.005 | 402 |
| /predict/negative-price | GET | $0.001 | 200 |
| /research/quick | GET | $0.003 | 402 |
| /v3/dispatch-plan | GET | $0.02 | 402 |
| /v3/market-brief | GET | $0.05 | 402 |
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.
Flexible-load agents buy this endpoint to schedule a contiguous operating window at the lowest average electricity 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.
Research and market-monitoring agents buy this endpoint to answer a focused question with a compact live market snapshot.
Schedules a deadline-bound compute, DePIN, battery or power-trading workload into an actionable German or European power window. Returns exact timing, expected EUR cost and savings, uncertainty, fresh…
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 …