Voltcast
European day-ahead electricity prices (43 zones), accuracy-published forecasts, carbon, optimize.
Connect it
Settings → Connectors → Add custom connector
URL: https://voltcast.com/api/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://voltcast.com/api/mcp{
"mcpServers": {
"voltcast": {
"url": "https://voltcast.com/api/mcp"
}
}
}claude mcp add --transport http voltcast https://voltcast.com/api/mcp{
"servers": {
"voltcast": {
"type": "http",
"url": "https://voltcast.com/api/mcp"
}
}
}7 tools, verified live
list_zonesread-onlyList all supported European bidding zones with codes, names, and capabilities. No auth required.
get_pricesread-onlyDay-ahead electricity prices in each zone's native currency and native market resolution. Connect an existing Voltcast account to access account-scoped data.
get_realtime_pricesread-onlyExplicitly labeled real-time market prices (currently WEIM), kept separate from day-ahead curves. Requires an API key.
get_forecastread-onlyProbabilistic price forecast up to 7 days ahead. Returns the P50 curve and any uncertainty bands included in the connected account. Accuracy is published daily at voltcast.com/accuracy.
get_carbonread-onlyCarbon intensity (gCO2eq/kWh) and green score (0-100 low-carbon share) derived from the live generation mix.
get_renewablesread-onlyDay-ahead wind and solar generation forecasts: the TSO official forecast and Voltcast model with uncertainty bands, realized generation, and disclosed head-to-head verification. Requires the corresponding existing account entitlement.
cheapest_windowread-onlyRank household action windows by cost using current Voltcast curves and optional user-supplied variable tariff inputs. Experimental carbon/balanced modes use a disclosed trailing historical production-mix profile—not a forward carbon forecast—and support no emissions-reduction claim.
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