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Energy Charts README

The full upstream README, mirrored for reference. Install config, tool schemas, adoption signals and our own overview live on the Energy Charts listing page.

Back to Energy Charts View source on GitHub

mcp-energy-charts

Energy-Charts (Fraunhofer ISE) MCP — European electricity generation, prices, and capacity. Keyless public API at https://api.energy-charts.info.

Part of Pipeworx — an MCP gateway connecting AI agents to 1864+ live data sources. This is an independent, unofficial integration — not affiliated with, endorsed by, or published by the upstream provider.

Tools

ToolDescription
generation_mixThe CURRENT ELECTRICITY GENERATION MIX BY FUEL for a European country — how much power is coming from solar, wind, nuclear, gas, coal, hydro, biomass right now, with each fuel's MW and percentage share. Answers "what is Germany's generation mix", "how much of France's electricity is nuclear", "Germany power generation by source", "what fuels are generating electricity in ". Accepts a country NAME ("Germany", "France") or 2-letter code. Also returns renewable vs fossil vs nuclear totals. Source: Fraunhofer ISE energy-charts, keyless.
public_powerElectricity generation broken down by production type (solar, wind, nuclear, gas, etc.) for a country over a date range. Returns {unix_seconds, production_types:[{name, data}]}; each series' data array is timestamp-aligned to unix_seconds. Power in MW.
electricity_priceDay-ahead spot electricity prices for a bidding zone over a date range. Returns {unix_seconds, price, unit}; the price array is timestamp-aligned to unix_seconds. Prices in EUR/MWh.
total_powerTotal electricity generation / load for a country over a date range. Returns {unix_seconds, production_types:[{name, data}]}; data arrays are timestamp-aligned to unix_seconds. Power in MW.
installed_powerInstalled generation capacity by production type for a country, as an annual or monthly series. Returns {time:["2002",...], production_types:[{name, data}]}; data arrays are aligned to the time array. Capacity in GW.
renewable_shareRenewable share of a country's electricity LOAD, as a percent — how much of demand wind, solar, hydro and biomass are covering, now or over a past date range. Answers "what share of Germany's electricity is renewable right now", "how renewable was France's grid in July", "which days last month did renewables cover most of the load". Accepts a country NAME ("Germany") or 2-letter code, or "eu"/"all" for the EU aggregate. Returns the latest MEASURED reading with its timestamp, a min/avg/max summary for the window, and a per-day breakdown; 15-minute readings are included for windows of 3 days or less. Values are percent OF LOAD and legitimately exceed 100 when a country generates more renewable power than it consumes and exports the surplus. Measured settled data, not a forecast. Keyless. Source: Fraunhofer ISE energy-charts.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

config.json
{
  "mcpServers": {
    "energy-charts": {
      "url": "https://gateway.pipeworx.io/energy-charts/mcp"
    }
  }
}

What this endpoint actually serves

tools/list at https://gateway.pipeworx.io/energy-charts/mcp returns the tools in the table above plus the shared Pipeworx meta-tools — ask_pipeworx, discover_tools, search_within, remember/recall and the rest of the gateway-wide set. So the tool count you see is larger than this table: a single-pack endpoint currently lists roughly 30 shared tools alongside the pack's own. The connection's initialize response states its exact scope, and is the authoritative answer for a given day.

This is deliberate, not multiplexing by accident. The meta-tools are what let a scoped connection answer a question this pack does not cover — via ask_pipeworx, which routes across the whole catalog — without you adding a second MCP server. There is currently no way to mount a pack endpoint without them; if the extra schemas cost you more context than the routing is worth, connect to the full gateway once rather than to several pack endpoints.

Or connect to the full Pipeworx gateway to get every pack's tools listed directly, instead of just this one's:

config.json
{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Both URLs reach the same gateway and the same 1864+ data sources. The only difference is which pack's tools are listed directly; ask_pipeworx reaches all of them from either one.

No MCP client? Call it over HTTP

Terminal
curl -X POST https://gateway.pipeworx.io/v1/tools/generation_mix \
  -H 'Content-Type: application/json' \
  -d '{"country":"Germany"}'

No account needed for the first calls. Inspect any tool: GET https://gateway.pipeworx.io/v1/tools/generation_mix. Find one: POST https://gateway.pipeworx.io/v1/tools/search_packs with {"query":"..."}.

Run it from npm

@pipeworx/mcp-energy-charts is a local stdio bridge to the Pipeworx gateway: your MCP client starts it with npx, and it forwards every call to the same https://gateway.pipeworx.io/energy-charts/mcp endpoint shown above. It needs network access; there is no offline mode.

config.json
{
  "mcpServers": {
    "energy-charts": {
      "command": "npx",
      "args": ["-y", "@pipeworx/mcp-energy-charts"]
    }
  }
}

Without a key it calls anonymously, capped at 50 calls a day. A free account raises that to 200 a day: get a key at https://pipeworx.io/signup and add "env": { "PIPEWORX_API_KEY": "<your key>" } to the server entry. The key is sent as a Bearer token, the same way a hosted connection sends it, so calls are metered and billed exactly as they are there.

It lists only this pack's tools by default. Set PIPEWORX_META_TOOLS=1 to also list ask_pipeworx and the other gateway-wide tools.

Behind an HTTPS proxy: Node's built-in fetch does not read HTTPS_PROXY by default. Newer Node releases honour it when NODE_USE_ENV_PROXY=1 is set; check your Node version's documentation.

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English — this works on the pack endpoint above as well as on the full gateway:

Code
ask_pipeworx({ question: "your question about Energy Charts data" })

The gateway picks the right tool and fills the arguments automatically.

More

License

MIT