Home quickstart

Ask ChatGPT or Claude for tomorrow’s local electricity price

Connect Voltcast to an AI assistant through hosted MCP or GPT Actions and query one European bidding zone.

Short answer

Use the hosted Voltcast MCP endpoint or the curated GPT Actions schema with a Home API key. Ask for an explicit zone and date, and require the assistant to cite the returned source and issuance time.

Forecast performance is published daily on the public accuracy board; losing zones remain visible.

Live SE3 example: €32.49/MWh for 2026-08-29 22:15–22:30 GMT+0000; source entsoe.

Set it up

  1. 1 Create Home, select your zone, and create an API key.
  2. 2 Add https://voltcast.com/api/mcp as a connector with an Authorization Bearer header.
  3. 3 Ask for tomorrow’s curve in the exact bidding-zone code.
  4. 4 Check issuance time, source, units, and missing intervals before acting.

Verify the data first

https://voltcast.com/api/mcp

Check zone, units, source, issuance time, native resolution, and gaps before connecting a physical device. An example live public context is at /zones/SE3.

Working resources

Official MCP registry → Glama server page →

Example task

Using Voltcast, show tomorrow’s price curve for my zone, name the cheapest two-hour window, and cite source and issuance time.