isone_lmp

Pack: iso-ne · Endpoint: https://gateway.pipeworx.io/iso-ne/mcp

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/isone_lmp for the schema, then POST the same URL with its arguments for the data.

ISO New England five-minute real-time locational marginal prices (LMP $/MWh) with their energy, congestion and loss components, for the eight New England load zones and hubs. ISO-NE runs the grid and wholesale market for CT, MA, ME, NH, RI and VT. Use for “New England power price right now”, “Massachusetts wholesale electricity price”, “ISO-NE zonal price spread”. Requires an API key.

Parameters

NameTypeRequiredDescription
location_idstringnoISO-NE location id to fetch (e.g. 4000 = .H.INTERNAL_HUB, 4004 = .Z.MASSACHUSETTS). Omit for all locations.
datestringnoDay to fetch as YYYY-MM-DD. Omit for the CURRENT five-minute interval; supply a date for that whole day.
limitnumbernoMax rows to return (default 100, max 2000).
_apiKeystringnoISO Express credential as “username:password” or its base64. Free account at ${SIGNUP}.

Example call

Arguments

{
  "limit": 100
}

curl

curl -X POST https://gateway.pipeworx.io/iso-ne/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"isone_lmp","arguments":{"limit":100}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('isone_lmp', {
  "limit": 100
});

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "iso-ne": {
      "url": "https://gateway.pipeworx.io/iso-ne/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

Regenerated from source · build September 18, 2026