Vistra Corp

aid: vistra-energy
url: https://raw.githubusercontent.com/api-evangelist/vistra-energy/refs/heads/main/apis.yml
name: Vistra Corp
kind: company
description: 'Vistra Corp (NYSE: VST) is an Irving, Texas integrated retail electricity and power generation company and the
  largest competitive power generator in the United States, operating roughly 41,000-44,000 MW of natural gas, nuclear, coal,
  solar and battery storage capacity alongside a retail business serving nearly 5 million residential, commercial and industrial
  customers across 16 states and the District of Columbia through TXU Energy, Dynegy, Ambit Energy, Energy Harbor, Homefield
  Energy and U.S. Gas & Electric. Its home market is the United States, where it sits on both sides of the competitive value
  chain, a merchant generator selling into ERCOT, PJM, ISO-NE, NYISO, MISO and CAISO, and a retail electricity provider (REP)
  reselling that power to end customers. Its API posture is honestly none. No developer portal, no API subdomain and no machine-readable
  contract of any kind was found: developer., developers., docs., api. and data. on vistracorp.com do not resolve; /developers,
  /api, /docs, /data, /openapi.json, /swagger.json and /.well-known/openid-configuration all return 404; and TXU Energy''s
  758-URL sitemap contains no developer or API page. The United States has no consumer energy data mandate. Green Button is
  an NAESB/NIST ESPI standard adopted voluntarily, and TXU Energy appears on the US Department of Energy''s list of "Utilities
  Committed to Implementing Green Button", a 2012-era commitment list and not evidence of a live endpoint. The only customer-data
  surface found is Download-My-Data-style export behind the TXU Energy MyAccount login, whose interval readings are themselves
  sourced from Smart Meter Texas, the shared ERCOT meter-data platform operated by the transmission and distribution utilities
  (Oncor, CenterPoint, AEP Texas, TNMP) rather than by Vistra. Because Vistra is a retailer and generator and not a wires
  company, the third-party interval-data API in its home Texas market belongs to Smart Meter Texas and not to Vistra. Vistra
  likewise publishes no open market or grid data of its own; ERCOT, the other ISOs/RTOs and the EIA publish the market data
  about Vistra''s fleet. Both sides are therefore closed at the company boundary. Not to be confused with Vistra Limited (vistra.com),
  the unrelated corporate-services and fund-administration firm that does run a real API developer portal at devportal.vistra.com.'
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Energy
- United States
- Utilities
- Electricity
- Natural Gas
- Power Generation
- Retail Energy
- Smart Metering
- Green Button
- Energy Markets
- Nuclear
- Solar
- Battery Storage
- Texas
- ERCOT
created: '2026-07-27'
modified: '2026-07-27'
specificationVersion: '0.23'
apis: []
common:
- type: DomainSecurity
  url: security/vistra-energy-domain-security.yml
- type: Conformance
  name: Standards checked against Vistra Corp, all not found
  url: conformance/vistra-energy-conformance.yml
- type: LLMsTxt
  name: Generated by API Evangelist, not published by Vistra
  url: llms/vistra-energy-llms.txt
- type: DiscoveryProbe
  name: Well-known and discovery paths probed, zero documents found
  url: well-known/vistra-energy-well-known.yml
- type: Website
  url: https://www.vistracorp.com/
- type: About
  url: https://vistracorp.com/about/
- type: Retail
  url: https://vistracorp.com/retail/
- type: Sustainability
  url: https://vistracorp.com/sustainability/
- type: InvestorRelations
  url: https://investor.vistracorp.com/
- type: Blog
  url: https://vistracorp.com/blog/
- type: BlogRSS
  url: https://vistracorp.com/feed/
- type: PrivacyPolicy
  url: https://vistracorp.com/privacy-policy/
- type: TermsOfService
  url: https://vistracorp.com/terms-of-use/
- type: CodeOfConduct
  url: https://vistracorp.com/code-of-conduct/
- type: CorporateGovernance
  url: https://vistracorp.com/corporate-governance/
- type: Reporting
  name: Sustainability reporting
  url: https://vistracorp.com/sustainability/reporting/
- type: Careers
  url: https://vistracorp.com/careers/
- type: LinkedIn
  url: https://www.linkedin.com/company/vistra-energy
- type: LegislativeHub
  url: https://hub.vistracorp.com/our-companies/
- type: RetailBrand
  name: TXU Energy
  url: https://www.txu.com/
- type: RetailBrand
  name: Dynegy
  url: https://www.dynegy.com/
- type: RetailBrand
  name: Ambit Energy
  url: https://www.ambitenergy.com/
- type: RetailBrand
  name: Homefield Energy
  url: https://www.homefieldenergy.com/
- type: RetailBrand
  name: TriEagle Energy
  url: https://www.trieagleenergy.com/
- type: CustomerPortal
  name: TXU Energy MyAccount
  url: https://services.txu.com/
- type: HelpCenter
  name: TXU Energy Help Center, retail customer support and not a developer channel
  url: https://www.txu.com/help
- type: Documentation
  name: TXU Energy MyEnergy Dashboard usage help
  url: https://www.txu.com/help/manage-usage/my-energy-dashboard
- type: Documentation
  name: TXU Energy Smart Meters usage help
  url: https://www.txu.com/help/manage-usage/smart-meters
- type: Standard
  name: Green Button, US DOE commitment list naming TXU Energy
  url: https://www.energy.gov/data/green-button
- type: ThirdPartyDataPlatform
  name: Smart Meter Texas, ERCOT meter data operated by the TDUs and not by Vistra
  url: https://smartmetertexas.com/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com