@pipeworx/iso-ne

Connect: https://gateway.pipeworx.io/iso-ne/mcp · Install: one-click buttons

No MCP client? Skip the connection: POST https://gateway.pipeworx.io/v1/tools/search_packs {"query":"..."} to find a tool below, GET /v1/tools/<name> for its schema, POST the same URL with arguments for the data — see For AI agents.

Tools: 3

ISO New England market data via ISO Express web services — five-minute LMPs, system load and generation fuel mix for the six New England states (CT, MA, ME, NH, RI, VT).

Tools

  • isone_lmp(location_id?, date?, limit?) — five-minute real-time LMP with energy, congestion and loss components. Omit date for the current interval.
  • isone_load(date?, limit?) — five-minute total system load in MW.
  • isone_fuel_mix(date?, limit?) — generation by fuel category (gas, nuclear, hydro, wind, solar, refuse, wood, coal, oil, landfill gas, imports) with the marginal-fuel flag.

Auth

BYO only today. HTTP Basic against webservices.iso-ne.com. Platform fallback env var — not provisioned: PLATFORM_ISONE_AUTH.

Registration is free at https://www.iso-ne.com/participate/applications-status-changes/ (an “ISO Express / Web Services” account), but ISO-NE approves the account before the credentials work. A brand-new registration is refused exactly like a wrong password, so the pack’s 401 message names the approval step rather than implying the password is wrong.

_apiKey accepts either spelling:

  • "username:password" — plain; the pack base64-encodes it.
  • base64("username:password") — pre-encoded, same convention as seo-serp.

Anything else fails locally with a clear message instead of becoming a bare upstream 401 that looks like an outage.

One env var, not PLATFORM_ISONE_USER + PLATFORM_ISONE_PASS: the gateway injects exactly one secret per pack, into _apiKey. So the stored credential is the single string the Basic scheme actually needs. The pack is marked byoExpected: true in workers/gateway/src/pack-manifest.json so the vendor-key ratchet does not fail the deploy; drop it the day the credential lands.

Data sources

Traps

  • There is no keyless fallback. This was checked, not assumed. Probed 2026-09-17, all refused:
    • webservices.iso-ne.com/api/v1.1/fiveminutesystemload/current → 401
    • www.iso-ne.com/ws/wsclient → 500 (for every parameter shape tried)
    • www.iso-ne.com/transform/csv/genfuelmix?start=… → 403, and it stays 403 with a browser User-Agent and an isoexpress Referer. Note it is a 403 and not a 404, so the path exists — it is session-gated, not merely UA-gated (cf. reference_gov_site_ua_blocks, where a UA swap is usually the fix).
  • Response shapes here are UNVERIFIED. Holding no account, no ISO-NE response body in this pack has been observed live. ISO-NE wraps results in a singular/plural pair — {"FiveMinLmps": {"FiveMinLmp": [...]}} — and the pack unwraps that generically (descend to the first array-valued property) and returns rows as published, without remapping field names. The envelope field in every response reports which keys it actually walked, so the first real call with a credential tells you the true shape rather than hiding it. Tighten once credentials exist.
  • Same-day requests can legitimately be empty. ISO-NE publishes each day’s reports after the fact. The pack treats a 0-row success as an error and says to try the previous day, rather than returning an empty array as a clean answer.
  • ISO-NE does not use a .json suffix consistently across its docs; this pack appends .json to every path, which is the form the v1.1 API accepts.

Tools

  • isone_lmp — 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
  • isone_load — ISO New England system load (total electricity demand) in MW at five-minute resolution for the six-state New England footprint. Use for “New England electricity demand right now”, “ISO-NE peak load to
  • isone_fuel_mix — ISO New England generation by fuel category in MW — natural gas, nuclear, hydro, wind, solar, refuse, wood, coal, oil, landfill gas and net interchange with neighbouring grids — with the marginal-fuel

Tools

  • isone_fuel_mix — ISO New England generation by fuel category in MW — natural gas, nuclear, hydro, wind, solar, refuse, wood, coal, oil, landfill gas and net interchange with neighbouring grids — with the marginal-fuel
  • isone_lmp — 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
  • isone_load — ISO New England system load (total electricity demand) in MW at five-minute resolution for the six-state New England footprint. Use for New England electricity demand right now , ISO-NE peak load toda

Regenerated from source · build September 18, 2026