What can the ISO-NE MCP server access?

Only datasets registered for ISO-NE. The server URL, the sign-in token, search results and every query are all limited to that market.

Is this ISO-NE MCP server operated by ISO New England?

No. Ask the Grid runs it independently. Every catalog record names the original publisher and links to the source, including ISO-NE Web Services.

How is MCP different from using ISO-NE Web Services directly?

The source portal stays the publication of record. The MCP server is built for an AI client: it can search Ask the Grid's catalog, read each table's schema and run read-only queries, with access limited to ISO-NE.

ISO-NE MCP server

The ISO-NE server lets your AI client search and query Ask the Grid's New England data. Search, schemas, queries, sign-in and grid-asset reads all stay inside ISO-NE.

Connection instructions Open the ISO-NE map

ISO New England · ISO-NE Web Services

ISO-NE resource URL

https://mcp.askthegrid.com/v1/isone

datasets

tools

ISO-NE

scope

Streamable HTTP · protocol 2025-11-25 · all MCP servers

Connect it in about a minute

Pick your client. If you're signed in, any ISO-NE access you've already approved shows here.

Checking your Ask the Grid session…

Connect with Claude

Add Ask the Grid as a custom connector, then authorize it with your existing account.

Claude Free (one custom connector), Pro, Max, Team, and Enterprise

01Open Customize → Connectors and add a custom web connector. Team and Enterprise connectors must first be added for the organization.
02Name it “Ask the Grid ISO-NE,” paste the resource URL below, and review the OAuth settings. Choose automatic client registration if prompted.
03Add the connector, sign in to Ask the Grid, and approve the requested scopes.
04In a conversation, open + → Connectors and enable Ask the Grid ISO-NE.

ISO-NE resource URL

https://mcp.askthegrid.com/v1/isone

Official Claude MCP documentation

Ask it ISO-NE questions.

Compare ISO-NE Internal Hub real-time and day-ahead prices today.

How is current ISO-NE demand tracking the latest forecast?

Which ISO-NE day-ahead constraints have the largest canonical shadow prices?

Show the largest active battery projects in the ISO-NE queue.

ISO-NE market workflows

Each one opens the catalog entry for the table behind it.

Internal Hub, load-zone, and PNode LMPCompare ISO-NE real-time and day-ahead prices while preserving market run, scope, and location.System load and forecast vintagesTrack five-minute New England demand against the latest hourly load and net-load forecast.Day-ahead transmission constraintsRank ISO-NE constraints by sign-normalized canonical shadow price without presenting them as real-time conditions.Interchange and system conditionsFollow signed external interchange and relate it to ISO-NE’s published power-system condition notices.ISO-NE interconnection queue snapshotsSearch proposed projects by technology, requested capacity, status, and published connection details within one latest snapshot.

70 ISO-NE datasets, query-ready

The agent reads each table's source, schema, coverage and query notes before it writes a query.

ISO-NE Real-Time and Day-Ahead LMPiso_ne.lmpISONE · 5-minute real-time and hourly day-ahead/real-time ISO-NE 5-Minute System Loadiso_ne.system_load_5mISONE · 5-minute ISO-NE Hourly System Load Forecastiso_ne.load_forecast_hourlyISONE · hourly forecast vintages ISO-NE Day-Ahead Binding Constraintsatg.isone_constraints_daISONE · hourly ISO-NE Actual Interchangeiso_ne.actual_interchangeISONE · hourly ISO-NE Power System Conditionsiso_ne.power_system_conditionsISONE · event-driven ISO-NE Generation by Fuel Categoryiso_ne.fuel_mixISONE · ISO-NE source publication ISO-NE Interconnection Queueinterconnection_queue.iso_neISONE · daily snapshot

Browse all 70 datasets+ 62 more in the catalog

Under the hood

17 typed tools. Every credential is bound to ISO-NE.

Full tool contracts

Authentication: OAuth 2.1 with PKCE S256
Market boundary: ISO-NE-only audience, allowlist, row caps, audited
Default scopes: mcp:catalog.read · mcp:grid.read · mcp:sql.read · mcp:assets.read
Hydration scope: mcp:assets.write — Enterprise approval required

Questions

What can the ISO-NE MCP server access?: Only datasets registered for ISO-NE. The server URL, the sign-in token, search results and every query are all limited to that market.
Is this ISO-NE MCP server operated by ISO New England?: No. Ask the Grid runs it independently. Every catalog record names the original publisher and links to the source, including ISO-NE Web Services.
How is MCP different from using ISO-NE Web Services directly?: The source portal stays the publication of record. The MCP server is built for an AI client: it can search Ask the Grid's catalog, read each table's schema and run read-only queries, with access limited to ISO-NE.