MCP server

Voltcast Official

com.voltcast/voltcast

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

European day-ahead electricity prices (43 zones), accuracy-published forecasts, carbon, optimize.

Working at last checkVerified publisher: voltcast.comAbout 1,047 tokens per request once connected7 tools

https://voltcast.com/api/mcp

At a glance

Type: MCP server
Publisher: voltcast.com (verified by the MCP Registry)
Status: Working at last check
Tools: 7
Token cost: About 1,047 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 25 Oct 2026, 20:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http voltcast https://voltcast.com/api/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.voltcast]
url = "https://voltcast.com/api/mcp"

Gemini CLI

{"mcpServers":{"voltcast":{"httpUrl":"https://voltcast.com/api/mcp"}}}

Cursor

{"mcpServers":{"voltcast":{"url":"https://voltcast.com/api/mcp"}}}

VS Code

{"servers":{"voltcast":{"type":"http","url":"https://voltcast.com/api/mcp"}}}

Antigravity

agy mcp add voltcast https://voltcast.com/api/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"voltcast","server_url":"https://voltcast.com/api/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"voltcast","server_url":"https://voltcast.com/api/mcp"}

cheapest_window ~343 tokens
Rank 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.
get_carbon ~82 tokens
Carbon intensity (gCO2eq/kWh) and green score (0-100 low-carbon share) derived from the live generation mix.
get_forecast ~105 tokens
Probabilistic 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_prices ~156 tokens
Day-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_prices ~154 tokens
Explicitly labeled real-time market prices (currently WEIM), kept separate from day-ahead curves. Requires an API key.
get_renewables ~150 tokens
Day-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.
list_zones ~57 tokens
List all supported European bidding zones with codes, names, and capabilities. No auth required.

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