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MISO Real Time API

The Real Time API from MISO — 17 operation(s) for real time.

MISO Real Time API is one of 38 APIs that MISO publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Real-Time. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 17 operations across 17 paths, and defines 37 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against 2 base URLs: https://apim.misoenergy.org/lgi, https://apim.misoenergy.org/pricing.

17 operations 17 paths 37 schemas 17 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://public-api.misoenergy.org
Authentication
API Key, API Key
Resource Areas
1

Authentication & Security 2

MISO Real Time API declares 2 security schemes for authenticating requests. An API key is passed in the header as Ocp-Apim-Subscription-Key (apiKeyHeader). An API key is passed in the query as subscription-key (apiKeyQuery). By default, every request must be authenticated, though some operations may also be called without credentials.

Paths & Operations 17

Across 17 paths, the API surfaces 17 operations — 17 GET. Each is listed below with its method, path, parameters, and response codes.

Real Time 17
GET
/v1/real-time/{date}/binding-constraint
Real-Time Binding Constraints
get-v1-real-time-date-binding-constraint 3 params → 200400401404
GET
/v1/real-time/{date}/demand/actual
Actual Load
get-v1-real-time-date-demand-actual 7 params → 200400401404
GET
/v1/real-time/{date}/demand/forecast
Real-Time Cleared Demand
get-v1-real-time-date-demand-forecast 4 params → 200400401404
GET
/v1/real-time/{date}/demand/load-state-estimator
Real-Time State Estimator Load
get-v1-real-time-date-demand-load-state-estimator 5 params → 200400401404
GET
/v1/real-time/{date}/generation/cleared/supply
Real-Time Cleared Generation
get-v1-real-time-date-generation-cleared-supply 3 params → 200400401404
GET
/v1/real-time/{date}/generation/committed/ecomax
Real-Time Committed Generation, ECOMAX
get-v1-real-time-date-generation-committed-ecomax 3 params → 200400401404
GET
/v1/real-time/{date}/generation/fuel-on-the-margin
Real-Time Generation Fuel-on-the-Margin
get-v1-real-time-date-generation-fuel-on-the-margin 5 params → 200400401404
GET
/v1/real-time/{date}/generation/fuel-type
Real-Time Generation Fuel Type
get-v1-real-time-date-generation-fuel-type 4 params → 200400401404
GET
/v1/real-time/{date}/generation/offered/ecomax
Real-Time Offered Generation, ECOMAX
get-v1-real-time-date-generation-offered-ecomax 3 params → 200400401404
GET
/v1/real-time/{date}/interchange/net-actual
Real-Time Net Actual Interchange
get-v1-real-time-date-interchange-net-actual 4 params → 200400401404
GET
/v1/real-time/{date}/interchange/net-scheduled
Real-Time Net Scheduled Interchange
get-v1-real-time-date-interchange-net-scheduled 3 params → 200400401404
GET
/v1/real-time/{date}/outage
Real-Time Outages
get-v1-real-time-date-outage 3 params → 200400401404
GET
/v1/real-time/{date}/asm-exante
Real-Time Ex-Ante MCP
get-v1-real-time-date-asm-exante 5 params → 200400401404
GET
/v1/real-time/{date}/asm-expost
Real-Time Ex-Post MCP
get-v1-real-time-date-asm-expost 7 params → 200400401404
GET
/v1/real-time/{date}/asm-summary
Real-Time MCP Summary
get-v1-real-time-date-asm-summary 5 params → 200400401404
GET
/v1/real-time/{date}/lmp-exante
Real-Time Ex-Ante LMP
get-v1-real-time-date-lmp-exante 4 params → 200400401404
GET
/v1/real-time/{date}/lmp-expost
Real-Time Ex-Post LMP
get-v1-real-time-date-lmp-expost 6 params → 200400401404

Schemas 37

The contract defines 37 schemas that model the data the API accepts and returns. The most detailed are FuelType (8 properties), RealTimeExPostLocationalMarginalPrice (7 properties), LocationalMarginalPrice (7 properties), RealTimeOutage (5 properties). Each schema is shown below with its type and property counts.

NetActualInterchange
object
3 properties
RealTimeGenerationFuelMargin
object
5 properties
TimeInterval
object
4 properties
PreliminaryFinalEnum
string
200-OK-Demand-EstResponse-json
object
2 properties
200-OK-RealTime-DemandResponse-json
object
2 properties
RealTimeOutage
object
5 properties
GenerationFuelType
object
5 properties
GenerationCleared
object
2 properties
200-OK-Gen-ClearedResponse-json
object
2 properties
CommittedGeneration
object
4 properties
200-OK-LMPResponse-json
object
2 properties
200-OK-RTMCPResponse-json
object
2 properties
RealTimeNetScheduledInterchange
object
4 properties
PageInfo
object
5 properties
LocationalMarginalPrice
object
7 properties
DemandEst
object
3 properties
FuelType
object
8 properties
200-OK-Real-Time-OutageResponse-json
object
2 properties
Load
object
4 properties
200-OK-Net-Actual-InterchangeResponse-json
object
2 properties
200-OK-RTLMPResponse-json
object
2 properties
Region
string
200-OK-LoadResponse-json
object
2 properties
MarketClearingPrice
object
5 properties
RealTimeExPostLocationalMarginalPrice
object
7 properties
RealTimeExPostMarketClearingPrice
object
5 properties
200-OK-Generation-Fuel-TypeResponse-json
object
2 properties
OfferGeneration
object
4 properties
200-OK-MCPResponse-json
object
2 properties
200-OK-Real-Time-BindingConstraintsResponse-json
object
2 properties
RealTimeBindingConstraints
object
3 properties
RealTimeDemand
object
2 properties
200-OK-Committed-GenerationResponse-json
object
2 properties
200-OK-Offer-GenerationResponse-json
object
2 properties
200-OK-Real-Time-Net-Scheduled-InterchangeResponse-json
object
2 properties
200-OK-RtGenerationFuelOnTheMarginResponse-json
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

miso-real-time-api-openapi.yml Raw ↑

Other APIs MISO publishes across the network.

MISO Market Reports
MISO File Download API
MISO FTR MPMA Market User API
MISO EDR Service (Electronic Data Reporting)
MISO CROW API (Outage Scheduling)
MISO Fuel and Consumables Data Request API
MISO Market Portal Meter Data and Settlement Statements API
MISO Ace API
MISO Admin API
MISO Aggregated Pnode API
MISO Bidding API
MISO Binding Constraints API
Where this information came from

This is an independent, third-party profile of MISO Real Time API, 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.

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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.

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