{"title":"EU Energy Decision API for EV, Battery & Trading Agents","short_description":"Executable German/EU energy decisions paid per call with x402.","description":"One paid call returns action, time window, expected EUR value, confidence, source freshness and expiry. Free signal index and public track record. USDC on Base, no API key or account.","category":"Energy Decision API","tags":["energy","electricity","negative prices","EV charging","battery optimization","x402","USDC","Base","agents"],"homepage_url":"https://energy.halowerk.com","discovery_url":"https://energy.halowerk.com/discovery-status","starter_url":"https://energy.halowerk.com/agent-starter.json","x402_manifest_url":"https://energy.halowerk.com/.well-known/x402.json","agent_manifest_url":"https://energy.halowerk.com/.well-known/agent.json","openapi_url":"https://energy.halowerk.com/openapi.json","mcp_url":"https://energy.halowerk.com/mcp","mcp_registry_metadata_url":"https://energy.halowerk.com/.well-known/mcp-registry/server.json","integration_archive_url":"https://energy.halowerk.com/downloads/energy-hub-agent-examples.zip","x402scan_url":"https://www.x402scan.com/recipient/0x2880edfff13100677bf97a3cbdf3bc34771c4e5e/resources","llms_url":"https://energy.halowerk.com/llms.txt","free_signal_index":{"method":"GET","url":"https://energy.halowerk.com/predict/negative-price","path":"/predict/negative-price","price_usdc":"0","payment_required":false,"purpose":"Free poll endpoint. Reveals whether a fresh actionable signal exists, its probability band and expiry, but withholds exact probability, action, time window and expected value until paid POST."},"cheapest_paid_call":{"method":"POST","url":"https://energy.halowerk.com/predict/negative-price","path":"/predict/negative-price","price_usdc":"0.001","payment_required":true,"purpose":"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."},"recommended_paid_call":{"method":"POST","url":"https://energy.halowerk.com/energy/decision","path":"/energy/decision","price_usdc":"0.01","payment_required":true,"purpose":"EV, battery, and flexible-load agents buy this endpoint to receive an executable action with timing, expected value, confidence, and expiry."},"payment":{"protocol":"x402","network":"Base Mainnet","network_id":"eip155:8453","chain_id":8453,"asset":"USDC","no_api_keys":true,"no_accounts":true}}