ISO New England

ISO New England Inc. is the independent, nonprofit regional transmission organization authorized by the Federal Energy Regulatory Commission to operate the high-voltage power system, administer the wholesale electricity markets, and plan the power system for Connecticut, Rhode Island, Massachusetts, Vermont, New Hampshire, and most of Maine. Home market is the United States. It sits at the wholesale layer of the value chain, between generators, transmission owners, interconnections with New York and Canada, and the load-serving entities that resell power to retail customers - and it states on its own site that handling retail electricity is something it does not do. Its API posture is the sector's classic split, read from the wholesale end. Market and system data is genuinely open, so open that the ISO Express portal serves full nodal day-ahead LMP files as anonymous CSV and the public dashboards are backed by an anonymous JSON feed. Consumer data does not exist here at all, and cannot, because ISO New England holds no retail customer relationships and no Green Button, ESPI, or consumer data-portability mandate reaches it. The one documented programmatic contract, the Web Services API v1.1, is a real, richly documented RESTful surface of 477 path templates across 90 market and operations resources, but it answers 401 to anonymous callers - a developer must first create a free, self-serve ISO Express account, which the ISO says automatically grants access to the data feeds, and then authenticate with HTTP Basic over SSL.

agent aware

Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.

travel_explore apis.io index code GitHub source public Website

API Evangelist profiles ISO New England the way a machine reads it — 112 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — ISO New England scores 50.5/100 (developing), with a separate agent-readiness read of 27/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 50.5/100 · developing

Contract Quality 15.3 / 25

Developer Ergonomics 11.8 / 20

Access Clarity 8.4 / 20

Operational Transparency 3.1 / 13

Contract Governance 2.4 / 12

Discoverability 4.8 / 10

Regulatory · Energy & Utilities 7.7 / 15

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract derived 2.5 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth bearer 3.5 / 10

Idempotency 9 / 9

Stable Error Semantics documented 4.0 / 8

Request/Response Examples partial 3.5 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills derived 1.3 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Put this on your own site. The badge is drawn live from ISO New England's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.

<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/iso-new-england/"
   title="ISO New England on API Evangelist — API profile and Kin Score">
  <img src="https://apis.io/badge/iso-new-england.svg"
       alt="ISO New England Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>

[![ISO New England Kin Score — API readiness rating by API Evangelist](https://apis.io/badge/iso-new-england/flat.svg)](https://providers.apievangelist.com/providers/iso-new-england/)

<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/iso-new-england/"
   title="ISO New England on API Evangelist — API profile and Kin Score">
  <img src="https://apis.io/badge/iso-new-england/card.svg"
       alt="ISO New England Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>

More shapes, themes and sizes → · Score as JSON · How badges work

How we profile ISO New England

Each block below is one kind of artifact we hold for ISO New England. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 91

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

ISO New England Actualinterchange API

4 path template(s) under /actualinterchange in the published ISO New England Web Services API v1.1 documentation.

ISO New England Ams API

4 path template(s) under /ams in the published ISO New England Web Services API v1.1 documentation.

ISO New England Capacityscarcitycondition API

6 path template(s) under /capacityscarcitycondition in the published ISO New England Web Services API v1.1 documentation.

ISO New England Combinedhourlydemand API

3 path template(s) under /combinedhourlydemand in the published ISO New England Web Services API v1.1 documentation.

ISO New England Daasreservedata API

3 path template(s) under /daasreservedata in the published ISO New England Web Services API v1.1 documentation.

ISO New England Daasstrikeprices API

3 path template(s) under /daasstrikeprices in the published ISO New England Web Services API v1.1 documentation.

ISO New England Dailyofferthreshprice API

5 path template(s) under /dailyofferthreshprice in the published ISO New England Web Services API v1.1 documentation.

ISO New England Dayaheadconstraints API

4 path template(s) under /dayaheadconstraints in the published ISO New England Web Services API v1.1 documentation.

ISO New England Dayaheadhourlydemand API

6 path template(s) under /dayaheadhourlydemand in the published ISO New England Web Services API v1.1 documentation.

ISO New England Dayaheadhourlyoperatingreserve API

6 path template(s) under /dayaheadhourlyoperatingreserve in the published ISO New England Web Services API v1.1 documentation.

ISO New England Dayaheadlmpavgcongestion API

5 path template(s) under /dayaheadlmpavgcongestion in the published ISO New England Web Services API v1.1 documentation.

ISO New England Dayaheadprdclearing API

5 path template(s) under /dayaheadprdclearing in the published ISO New England Web Services API v1.1 documentation.

ISO New England Dayaheadvirtualproxy API

6 path template(s) under /dayaheadvirtualproxy in the published ISO New England Web Services API v1.1 documentation.

ISO New England Drdispatch API

6 path template(s) under /drdispatch in the published ISO New England Web Services API v1.1 documentation.

ISO New England Drtp API

5 path template(s) under /drtp in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fcmabp API

4 path template(s) under /fcmabp in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fcmara API

4 path template(s) under /fcmara in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fcmmbp API

4 path template(s) under /fcmmbp in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fcmmra API

4 path template(s) under /fcmmra in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fifteenminuteconstraints API

5 path template(s) under /fifteenminuteconstraints in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fifteenminuteinterchange API

6 path template(s) under /fifteenminuteinterchange in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fifteenminutelmp API

5 path template(s) under /fifteenminutelmp in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fiveminuteconstraints API

4 path template(s) under /fiveminuteconstraints in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fiveminuteestimatedzonalload API

5 path template(s) under /fiveminuteestimatedzonalload in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fiveminuteexternalflow API

7 path template(s) under /fiveminuteexternalflow in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fiveminutelmp API

14 path template(s) under /fiveminutelmp in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fiveminutercp API

7 path template(s) under /fiveminutercp in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fiveminutereserveprice API

13 path template(s) under /fiveminutereserveprice in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fiveminutesystemload API

4 path template(s) under /fiveminutesystemload in the published ISO New England Web Services API v1.1 documentation.

ISO New England Fiveminutezonalloadforecast API

3 path template(s) under /fiveminutezonalloadforecast in the published ISO New England Web Services API v1.1 documentation.

ISO New England Forecastcapacity API

6 path template(s) under /forecastcapacity in the published ISO New England Web Services API v1.1 documentation.

ISO New England Frmdtp API

5 path template(s) under /frmdtp in the published ISO New England Web Services API v1.1 documentation.

ISO New England Ftrauctionclearingprices API

4 path template(s) under /ftrauctionclearingprices in the published ISO New England Web Services API v1.1 documentation.

ISO New England Ftrauctionresults API

4 path template(s) under /ftrauctionresults in the published ISO New England Web Services API v1.1 documentation.

ISO New England Genfuelmix API

6 path template(s) under /genfuelmix in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbannualftrauction API

4 path template(s) under /hbannualftrauction in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbdaasardoffer API

3 path template(s) under /hbdaasardoffer in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbdaasdrroffer API

3 path template(s) under /hbdaasdrroffer in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbdaasenergyoffer API

3 path template(s) under /hbdaasenergyoffer in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbdayaheadardbid API

4 path template(s) under /hbdayaheadardbid in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbdayaheaddemandbid API

6 path template(s) under /hbdayaheaddemandbid in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbdayaheaddrrbid API

3 path template(s) under /hbdayaheaddrrbid in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbdayaheadenergyoffer API

4 path template(s) under /hbdayaheadenergyoffer in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbdayaheadloadresponseoffer API

4 path template(s) under /hbdayaheadloadresponseoffer in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbfcmara API

5 path template(s) under /hbfcmara in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbfcmmra API

4 path template(s) under /hbfcmmra in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbforwardreserveauctionoffer API

3 path template(s) under /hbforwardreserveauctionoffer in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbimportexport API

4 path template(s) under /hbimportexport in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbmonthlyftrauction API

4 path template(s) under /hbmonthlyftrauction in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbrealtimeardbid API

4 path template(s) under /hbrealtimeardbid in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbrealtimedrrbid API

3 path template(s) under /hbrealtimedrrbid in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbrealtimeenergyoffer API

4 path template(s) under /hbrealtimeenergyoffer in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hbregulationoffer API

4 path template(s) under /hbregulationoffer in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hourlybainterchange API

4 path template(s) under /hourlybainterchange in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hourlyfinalreserveprice API

7 path template(s) under /hourlyfinalreserveprice in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hourlylmp API

24 path template(s) under /hourlylmp in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hourlyloadforecast API

5 path template(s) under /hourlyloadforecast in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hourlyloadgeninterchange API

4 path template(s) under /hourlyloadgeninterchange in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hourlyper API

5 path template(s) under /hourlyper in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hourlyprelimreserveprice API

7 path template(s) under /hourlyprelimreserveprice in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hourlyrcp API

8 path template(s) under /hourlyrcp in the published ISO New England Web Services API v1.1 documentation.

ISO New England Hourlysysload API

8 path template(s) under /hourlysysload in the published ISO New England Web Services API v1.1 documentation.

ISO New England Lmp Index API

12 path template(s) under /lmpIndex in the published ISO New England Web Services API v1.1 documentation.

ISO New England Loadzonencpc API

6 path template(s) under /loadzonencpc in the published ISO New England Web Services API v1.1 documentation.

ISO New England Locations API

3 path template(s) under /locations in the published ISO New England Web Services API v1.1 documentation.

ISO New England Monthlyassetncpc API

4 path template(s) under /monthlyassetncpc in the published ISO New England Web Services API v1.1 documentation.

ISO New England Monthlylmpindex API

4 path template(s) under /monthlylmpindex in the published ISO New England Web Services API v1.1 documentation.

ISO New England Monthlyper API

5 path template(s) under /monthlyper in the published ISO New England Web Services API v1.1 documentation.

ISO New England Morningreport API

6 path template(s) under /morningreport in the published ISO New England Web Services API v1.1 documentation.

ISO New England Ncpc API

5 path template(s) under /ncpc in the published ISO New England Web Services API v1.1 documentation.

ISO New England Networkload API

4 path template(s) under /networkload in the published ISO New England Web Services API v1.1 documentation.

ISO New England Nextdayoperationalcapacityreport API

4 path template(s) under /nextdayoperationalcapacityreport in the published ISO New England Web Services API v1.1 documentation.

ISO New England Nodalloadstat API

3 path template(s) under /nodalloadstat in the published ISO New England Web Services API v1.1 documentation.

ISO New England Nodalloadweight API

6 path template(s) under /nodalloadweight in the published ISO New England Web Services API v1.1 documentation.

ISO New England Outages API

20 path template(s) under /outages in the published ISO New England Web Services API v1.1 documentation.

ISO New England Performancescore API

4 path template(s) under /performancescore in the published ISO New England Web Services API v1.1 documentation.

ISO New England Powersystem API

2 path template(s) under /powersystem in the published ISO New England Web Services API v1.1 documentation.

ISO New England Powersystemconditions API

4 path template(s) under /powersystemconditions in the published ISO New England Web Services API v1.1 documentation.

ISO New England Pricerespevent API

5 path template(s) under /pricerespevent in the published ISO New England Web Services API v1.1 documentation.

ISO New England Realtimeconstraints API

9 path template(s) under /realtimeconstraints in the published ISO New England Web Services API v1.1 documentation.

ISO New England Realtimehourlydemand API

6 path template(s) under /realtimehourlydemand in the published ISO New England Web Services API v1.1 documentation.

ISO New England Realtimehourlyoperatingreserve API

6 path template(s) under /realtimehourlyoperatingreserve in the published ISO New England Web Services API v1.1 documentation.

ISO New England Reliabilityregionloadforecast API

5 path template(s) under /reliabilityregionloadforecast in the published ISO New England Web Services API v1.1 documentation.

ISO New England Schedule2varstatus API

4 path template(s) under /schedule2varstatus in the published ISO New England Web Services API v1.1 documentation.

ISO New England Seasonalpeakhourdata API

4 path template(s) under /seasonalpeakhourdata in the published ISO New England Web Services API v1.1 documentation.

ISO New England Sevendayforecast API

5 path template(s) under /sevendayforecast in the published ISO New England Web Services API v1.1 documentation.

ISO New England Sevendaywindpowerforecast API

4 path template(s) under /sevendaywindpowerforecast in the published ISO New England Web Services API v1.1 documentation.

ISO New England Singlesrccontingencylimits API

6 path template(s) under /singlesrccontingencylimits in the published ISO New England Web Services API v1.1 documentation.

ISO New England Totaltransfercapability API

5 path template(s) under /totaltransfercapability in the published ISO New England Web Services API v1.1 documentation.

ISO New England Weeklylmpindex API

4 path template(s) under /weeklylmpindex in the published ISO New England Web Services API v1.1 documentation.

ISO New England Whlsecost API

8 path template(s) under /whlsecost in the published ISO New England Web Services API v1.1 documentation.

Scroll within the panel for all 91 ·

Open Collections 1

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

1 fields

EXAMPLE

Scroll within the panel for all 14 ·

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Iso New England Authentication

http · 1 scheme

SECURITY

Iso New England Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Iso New England Agentic Access

489 operations

489 operations · 0 acting

AGENTIC

Resources

Every other property we hold for ISO New England — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 4

Portal, sign-up, and the first successful call

Portal

SignUp

DeveloperPortal

GettingStarted

Documentation 5

Reference material describing how the API behaves

OpenAPI

JSONSchema

APIReference

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Vocabulary

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Arazzo

Arazzo

Scroll within the panel for all 8 ·

Build 3

SDKs, sample code, and the tooling you integrate with

Examples

Examples

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Compliance

Compliance

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 4

Status, limits, changes, and where to get help

ChangeLog

Support

FAQ

Roadmap

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 5

The organization behind the API

Website

Website

Blog

Blog

BlogRSS

BlogRSS

LinkedIn

Twitter

Twitter

Other 4

Properties that don't map to a standard resource type

CapabilityMap

Overlay

Regulation

Glossary

← All providers · Data indexed from github.com/api-evangelist/iso-new-england · machine-readable index on apis.io

Where this information came from

This is an independent, third-party profile of ISO New England, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.

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Learnings

Guidance

Toolbox

Alignment

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