GridHub MCP Server

Live and historical electricity market data for AI agents, over the Model Context Protocol.

Endpoint: https://api.grid-hub.app/mcp — hosted, Streamable HTTP, stateless. Nothing to install.

Covers 25 grid zones — US ISOs (CAISO, ERCOT, PJM, MISO, NYISO, ISO-NE, SPP), 12 European bidding zones, Great Britain, and the five Australian NEM regions — normalised into one JSON schema. Sourced from EIA, ENTSO-E, NESO, Elexon and AEMO; every response carries its licence and attribution.

Tools

Access

Three levels, no signup needed to start:

1. Sample mode — connect with no credentials. Tools return real, current data, truncated (history capped at 50 rows; brief returns one context block). Results are clearly marked.
2. Free API key — 500 requests/day. Instant email signup at grid-hub.app/developers, or POST https://api.grid-hub.app/v1/keys/signup with {"email": "..."}. Send as Authorization: Bearer <ghk_key>.
3. x402 pay-per-call — USDC on Base, $0.001–$0.02 per call, via the X-PAYMENT header. See the x402 flow.

Setup

Claude Code

claude mcp add --transport http gridhub https://api.grid-hub.app/mcp \
  --header "Authorization: Bearer YOUR_KEY"

Cursor / Windsurf / VS Code (mcp.json)

{
  "mcpServers": {
    "gridhub": {
      "url": "https://api.grid-hub.app/mcp",
      "headers": { "Authorization": "Bearer YOUR_KEY" }
    }
  }
}

Claude Desktop / claude.ai — add https://api.grid-hub.app/mcp as a custom connector. These clients don't send custom headers; pass the key as the optional api_key tool argument, or use sample mode.

Local stdio bridge — for clients that only support local (stdio) servers. It proxies to the hosted endpoint via mcp-remote; nothing runs locally except the bridge.

{
  "mcpServers": {
    "gridhub": {
      "command": "npx",
      "args": ["-y", "github:jalcodev/gridhub-mcp"],
      "env": { "GRIDHUB_API_KEY": "YOUR_KEY" }
    }
  }
}

Or with Docker: docker build -t gridhub-mcp . && docker run -i -e GRIDHUB_API_KEY=YOUR_KEY gridhub-mcp. Omit the key for sample mode.

Any client, no key — omit the header. You'll get sample-mode data and a note on how to upgrade.

Protocol

• Streamable HTTP, stateless: one JSON-RPC message per POST, JSON response. No sessions, no SSE.
• Speaks MCP 2026-07-28 (header-mirrored requests, no handshake) and 2025-03-26 through 2025-11-25 (initialize handshake).
• Tool results include structuredContent alongside the text block.
• Rate limits and quotas are those of the underlying REST API; the MCP layer adds none of its own.

Related

• REST API docs: https://grid-hub.app/developers
• OpenAPI: https://api.grid-hub.app/openapi.json
• llms.txt: https://api.grid-hub.app/llms.txt
• Official MCP Registry entry: io.github.jalcodev/gridhub

License

The code in this repository is MIT licensed. Data returned by the service is subject to each source's licence, stated in every response (license and attribution fields).