PJM Interconnection

PJM Data Miner 2 API

PJM's public wholesale market and system data catalogue, exposed as a REST API behind Azure API Management. Feeds include day-ahead and real-time hourly and five-minute LMPs, ancillary service prices and market results, generation by fuel type, hourly metered/estimated/preliminary load, load forecasts, generation and transmission outages, FTR auction bids and zonal LMPs, pnode and aggregate definitions, and uplift and billing determinants. Each feed supports a /metadata call and a search call with rowCount/startRow paging, field selection, sorting and date-range filters, and JSON or CSV output. The data is designated public by PJM and the key is free, but anonymous calls are rejected — verified HTTP 401 on GET https://api.pjm.com/api/v1/gen_by_fuel on 2026-07-27 — and redistribution requires at minimum a PJM Associate Membership.

Documentation GitHub

Documentation

https://www.pjm.com/markets-and-operations/etools/data-miner-2

https://www.pjm.com/-/media/DotCom/etools/data-miner-2/data-miner-2-api-guide.ashx

https://www.pjm.com/-/media/DotCom/etools/data-miner-2/data-miner-2-getting-started-guide.pdf

https://raw.githubusercontent.com/api-evangelist/pjm/refs/heads/main/rate-limits/pjm-rate-limits.yml

Other Resources

https://apiportal.pjm.com/

https://www.pjm.com/-/media/DotCom/etools/data-miner-2/data-miner-2-api-guide.ashx

https://services.pjm.com/PJMDataminerApi/swagger

https://dataminer2.pjm.com/list

https://accountmanager.pjm.com/accountmanager/pages/public/new-user.jsf

https://www.pjm.com/markets-and-operations/etools/data-miner-2/data-miner-2-release-notes.aspx

https://learn.pjm.com/three-priorities/keeping-the-lights-on/data-miner-faqs.aspx

https://raw.githubusercontent.com/api-evangelist/pjm/refs/heads/main/conventions/pjm-conventions.yml

https://raw.githubusercontent.com/api-evangelist/pjm/refs/heads/main/errors/pjm-error-catalog.yml

https://raw.githubusercontent.com/api-evangelist/pjm/refs/heads/main/data-model/pjm-data-model.yml

https://api-train.pjm.com/api/v1

https://raw.githubusercontent.com/api-evangelist/pjm/refs/heads/main/skills/pjm-query-data-miner-feed.md

https://raw.githubusercontent.com/api-evangelist/pjm/refs/heads/main/apis.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/pjm-data-miner-2-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

aid: pjm:pjm-data-miner-2-api
name: PJM Data Miner 2 API
description: PJM's public wholesale market and system data catalogue, exposed as a REST API behind Azure
  API Management. Feeds include day-ahead and real-time hourly and five-minute LMPs, ancillary service
  prices and market results, generation by fuel type, hourly metered/estimated/preliminary load, load
  forecasts, generation and transmission outages, FTR auction bids and zonal LMPs, pnode and aggregate
  definitions, and uplift and billing determinants. Each feed supports a /metadata call and a search call
  with rowCount/startRow paging, field selection, sorting and date-range filters, and JSON or CSV output.
  The data is designated public by PJM and the key is free, but anonymous calls are rejected — verified
  HTTP 401 on GET https://api.pjm.com/api/v1/gen_by_fuel on 2026-07-27 — and redistribution requires at
  minimum a PJM Associate Membership.
humanURL: https://www.pjm.com/markets-and-operations/etools/data-miner-2
baseURL: https://api.pjm.com/api/v1
image: https://www.pjm.com/assets/MVC/responsive/img/pjm-logo.png
tags:
- Market Data
- Electricity
- Energy Markets
- Locational Marginal Pricing
- Load
- Outages
properties:
- type: Documentation
  url: https://www.pjm.com/markets-and-operations/etools/data-miner-2
- type: APIPortal
  url: https://apiportal.pjm.com/
- type: Guide
  url: https://www.pjm.com/-/media/DotCom/etools/data-miner-2/data-miner-2-api-guide.ashx
- type: SwaggerUI
  url: https://services.pjm.com/PJMDataminerApi/swagger
- type: Console
  url: https://dataminer2.pjm.com/list
- type: SignUp
  url: https://accountmanager.pjm.com/accountmanager/pages/public/new-user.jsf
- type: APIReference
  url: https://www.pjm.com/-/media/DotCom/etools/data-miner-2/data-miner-2-api-guide.ashx
- type: GettingStarted
  url: https://www.pjm.com/-/media/DotCom/etools/data-miner-2/data-miner-2-getting-started-guide.pdf
- type: ChangeLog
  url: https://www.pjm.com/markets-and-operations/etools/data-miner-2/data-miner-2-release-notes.aspx
- type: FAQ
  url: https://learn.pjm.com/three-priorities/keeping-the-lights-on/data-miner-faqs.aspx
- type: RateLimits
  url: rate-limits/pjm-rate-limits.yml
- type: Conventions
  url: conventions/pjm-conventions.yml
- type: ErrorCatalog
  url: errors/pjm-error-catalog.yml
- type: DataModel
  url: data-model/pjm-data-model.yml
- type: Sandbox
  url: https://api-train.pjm.com/api/v1
- type: AgentSkill
  url: skills/pjm-query-data-miner-feed.md