aid: elexon
url: https://raw.githubusercontent.com/api-evangelist/elexon/refs/heads/main/apis.yml
name: Elexon
kind: company
image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Electricity
  - Energy
  - UK Energy Market
  - Balancing Mechanism
  - Settlement
  - Meter Readings
  - Market Transparency
  - BMRS
  - Electricity Grid
  - Power Generation
  - United Kingdom
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
description: >-
  Elexon is the UK's Balancing and Settlement Code (BSC) Company, responsible for
  administering the electricity balancing and settlement arrangements in Great Britain.
  As the operator of the Balancing Mechanism Reporting Service (BMRS), Elexon publishes
  a publicly accessible REST API — the Insights Solution API — that provides free, no-key
  access to real-time and historical data from the UK electricity market. The API covers
  balancing mechanism dynamic and physical data per Balancing Mechanism Unit (BMU),
  bid-offer acceptances, balancing services adjustments, physical notifications, generation
  availability forecasts, settlement reports, meter readings, and UK market transparency
  data mandated under European legislation. All data is returned in JSON, XML, or CSV
  format. A companion near-real-time push service (IRIS — Insights Real-time Information
  Service) streams the same datasets over WebSocket/STOMP for latency-sensitive consumers.
  The API is freely accessible to industry participants and the public with no registration
  or API key required, and data may be reused with attribution ("Contains BMRS data
  © Elexon Limited copyright and database right").
apis:
  - aid: elexon:insights-solution-api
    name: Elexon Insights Solution API
    tags:
      - Balancing Mechanism
      - Physical Notifications
      - Bid-Offer
      - Acceptances
      - Balancing Services Adjustment
      - Generation Forecasts
      - Demand Data
      - Settlement
      - Market Transparency
      - Meter Data
      - Electricity
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    baseURL: https://data.elexon.co.uk/bmrs/api/v1
    humanURL: https://developer.data.elexon.co.uk/
    description: >-
      The Elexon Insights Solution API is a publicly accessible REST API providing
      free access to UK electricity balancing and settlement data. The API requires
      no authentication or API key and serves production-grade data continuously.
      Endpoints are grouped into Dataset Endpoints (raw published data, including
      superseded historical records), Opinionated Endpoints (specific use-case queries
      such as demand evolution or generation availability), Streaming Endpoints (JSON
      only, no paging restrictions), and Summary/Reference Data endpoints. Response
      formats include JSON, XML, and CSV. Core data domains include balancing mechanism
      dynamic and physical data per BMU, bid-offer data and acceptances, disaggregated
      and net balancing services adjustments (DISBSAD/NETBSAD), physical notifications
      (PN/QPN), non-BM STOR (NONBM), and 50+ BMRS datasets covering generation,
      demand, frequency, temperature, and market transparency. An interactive OpenAPI
      specification is published at https://data.elexon.co.uk/swagger/v1/swagger.json.
    properties:
      - type: Documentation
        url: https://developer.data.elexon.co.uk/
      - type: Documentation
        url: https://bmrs.elexon.co.uk/api-documentation/guidance
      - type: OpenAPI
        url: https://data.elexon.co.uk/swagger/v1/swagger.json
      - type: GitHub
        url: https://github.com/elexon-data/insights-docs
    x-features:
      - No API key or registration required — fully public access
      - 50+ BMRS dataset endpoints covering the full UK electricity market
      - Dataset endpoints return superseded historical records for audit/research
      - Streaming endpoints with no pagination restrictions
      - Responses available in JSON, XML, and CSV formats
      - Opinionated endpoints for common use-case queries (demand evolution, generation forecasts)
      - Companion IRIS service for near-real-time push delivery of the same datasets
    x-use-cases:
      - Real-time balancing mechanism monitoring for energy traders
      - Historical settlement data retrieval for reconciliation and audit
      - Generation and demand forecasting using published forecast datasets
      - UK electricity market transparency reporting (regulatory compliance)
      - Academic and public research into UK grid operations
      - Energy management systems and smart meter data aggregation
      - Building dashboards for grid frequency, demand, and supply visibility
    x-integrations:
      - IRIS (Insights Real-time Information Service — WebSocket/STOMP push)
      - BMRS Data Portal (bmrs.elexon.co.uk)
      - Data Integration Platform (DIP — industry data exchange)
common:
  - type: Portal
    url: https://developer.data.elexon.co.uk/
  - type: Documentation
    url: https://bmrs.elexon.co.uk/api-documentation/guidance
  - type: OpenAPI
    url: https://data.elexon.co.uk/swagger/v1/swagger.json
  - type: TermsOfService
    url: https://www.elexon.co.uk/bsc/data/balancing-mechanism-reporting-agent/copyright-licence-bmrs-data/
  - type: StatusPage
    url: https://status.elexon.co.uk/
  - type: GitHub
    url: https://github.com/elexon-data
  - type: GitHub
    url: https://github.com/elexon-data/insights-docs
  - type: GitHub
    url: https://github.com/elexon-data/insights-issues
  - type: GitHub
    url: https://github.com/elexon-data/iris-clients
  - type: Blog
    url: https://www.elexon.co.uk/news-insights/
  - type: Support
    url: mailto:insightssupport@elexon.co.uk
  - type: Plans
    url: plans/elexon-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/elexon-rate-limits.yml
  - type: FinOps
    url: finops/elexon-finops.yml
x-headquarters: London, England, United Kingdom
x-type: public-body
x-sector: Energy / Electricity Settlement
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com