CenterPoint Energy

aid: centerpoint-energy
url: https://raw.githubusercontent.com/api-evangelist/centerpoint-energy/refs/heads/main/apis.yml
name: CenterPoint Energy
tags:
- EDI
- ERCOT
- Electricity
- Energy
- Fortune 500
- Green Button
- Interval Data
- NAESB ESPI
- Natural Gas
- Smart Meter
- Texas
- TxSET
- Usage Data
- Utility
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Free · Open access
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/centerpoint-energy.png
access: 3rd-Party
created: '2026-03-21'
modified: '2026-09-05'
position: Consuming
specificationVersion: '0.23'
description: 'CenterPoint Energy is a domestic energy delivery company providing electric transmission and distribution, natural
  gas distribution and energy services to residential, commercial and industrial customers across Texas, Indiana, Minnesota,
  Ohio and Louisiana. Its machine-readable surfaces are B2B and regulator-driven rather than a public developer program: CenterPoint
  Energy Houston Electric is one of four Texas Transmission and Distribution Service Providers that jointly own and fund Smart
  Meter Texas, whose REST/SOAP interface at services.smartmetertexas.net serves 15-minute interval reads, daily register reads,
  monthly billing reads and NAESB ESPI Green Button exports to customer-authorized third parties over mutual TLS. CenterPoint
  also runs a Competitive Retailers Information Portal and publishes the TxSET (ANSI X12 EDI) transaction standards and SAC04
  invoice codes retailers integrate against.'
apis:
- aid: centerpoint-energy:usage-history-inquiry
  name: CenterPoint Energy Usage History via Smart Meter Texas Data Access API
  tags:
  - Billing History
  - Interval Data
  - Smart Meter Texas
  - Usage
  humanURL: https://www.smartmetertexas.com/
  properties:
  - url: https://www.smartmetertexas.com/
    type: Website
  - url: https://www.smartmetertexas.com/
    type: DeveloperPortal
  - url: https://www.smartmetertexas.com/commonapi/gethelpguide/help-guides/Smart_Meter_Texas_Interface_Guide.pdf
    type: APIReference
  - url: https://www.smartmetertexas.com/quickrefguides
    type: Documentation
  - url: authentication/centerpoint-energy-smt-authentication.yml
    type: Authentication
  - url: errors/centerpoint-energy-problem-types.yml
    type: ErrorCatalog
  - url: conventions/centerpoint-energy-conventions.yml
    type: Conventions
  description: Customer-authorized access to CenterPoint Energy interval usage, daily register reads, monthly billing reads,
    meter and premise attributes and on-demand reads, through the Smart Meter Texas (SMT) Data Access interface. SMT is jointly
    owned and funded by the four Texas TDSPs — CenterPoint Energy Houston Electric, Oncor, AEP Texas and TNMP — and is the
    surface CenterPoint's own competitive-retailer and customer documentation directs third parties to for CenterPoint meter
    data; the contract is published and operated by Smart Meter Texas, not by CenterPoint alone. REST and SOAP endpoints live
    at services.smartmetertexas.net (UAT at uatservices.smartmetertexas.net) behind mutual TLS plus HTTP Basic credentials
    issued per DUNS. No machine-readable OpenAPI/WSDL is published; the contract is a 185-page PDF interface guide.
  baseURL: https://services.smartmetertexas.net
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/centerpoint-energy.png
- aid: centerpoint-energy:green-button-connect-my-data
  name: CenterPoint Energy Green Button Connect My Data (NAESB ESPI)
  tags:
  - Energy Usage
  - Green Button
  - Interval Data
  - Open Data
  humanURL: https://www.smartmetertexas.com/
  properties:
  - url: https://www.smartmetertexas.com/
    type: Website
  - url: https://www.smartmetertexas.com/commonapi/gethelpguide/help-guides/Smart_Meter_Texas_Interface_Guide.pdf
    type: APIReference
  - url: https://www.energy.gov/data/green-button
    type: Specification
  - url: https://www.greenbuttonalliance.org/
    type: Standards
  - url: https://www.naesb.org/ESPI_Standards.asp
    type: Specification
  description: NAESB ESPI (Energy Services Provider Interface) Green Button export of a CenterPoint Energy electric customer's
    15-minute interval usage, delivered as an ad-hoc REST call to the /greenbutton/ resource on the Smart Meter Texas Data
    Access interface and documented in section 3.1.1.4 of the SMT Interface Guide. Access requires an executed Energy Data
    Sharing Agreement and the same mutual-TLS + Basic credentials as the rest of the SMT surface. The Green Button standard
    itself is stewarded by NAESB and the Green Button Alliance; the CenterPoint-reachable implementation is the SMT endpoint.
  baseURL: https://services.smartmetertexas.net/greenbutton
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/centerpoint-energy.png
common:
- type: Website
  url: https://www.centerpointenergy.com
- type: LinkedIn
  url: https://www.linkedin.com/company/centerpoint-energy
- type: Support
  url: https://www.centerpointenergy.com/en-us/contact-us
- type: Blog
  url: https://www.centerpointenergy.com/en-us/about-us/news
- type: Pricing
  url: https://www.centerpointenergy.com/en-us/our-services/rates-tariffs
- type: TermsOfService
  url: https://www.centerpointenergy.com/en-us/about-us/legal/terms-of-use
- type: PrivacyPolicy
  url: https://www.centerpointenergy.com/en-us/about-us/legal/privacy-policy
- type: Documentation
  url: https://www.centerpointenergy.com/en-us/for-business/industry/competitive-retailers/processes-standards-forms
- type: Portal
  url: https://www.centerpointenergy.com/en-us/for-business/industry/competitive-retailers
- type: Services
  url: https://www.centerpointenergy.com/en-us/for-business/industry/builders-developers
- type: Tools
  url: https://energydataportal.centerpointenergy.com/
- type: Partners
  url: https://www.smartmetertexas.com/
- type: Standard
  url: https://www.energy.gov/data/green-button
- type: StatusPage
  url: https://www.centerpointenergy.com/en-us/for-business/industry/competitive-retailers
- type: Conformance
  url: conformance/centerpoint-energy-conformance.yml
- type: Conventions
  url: conventions/centerpoint-energy-conventions.yml
- type: ErrorCatalog
  url: errors/centerpoint-energy-problem-types.yml
- type: Authentication
  url: authentication/centerpoint-energy-smt-authentication.yml
- type: Lifecycle
  url: lifecycle/centerpoint-energy-lifecycle.yml
- type: RateLimits
  url: rate-limits/centerpoint-energy-rate-limits.yml
- type: Plans
  url: plans/centerpoint-energy-plans-pricing.yml
- type: FinOps
  url: finops/centerpoint-energy-finops.yml
- type: Packages
  url: packages/centerpoint-energy-packages.yml
- type: LLMsTxt
  url: llms/centerpoint-energy-llms.txt
- type: DomainSecurity
  url: security/centerpoint-energy-domain-security.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-09-05'
  status: enriched
  artifacts_added: 8
  pass: local-v3
x-ownership-corrections:
  date: '2026-09-05'
  removed: centerpoint-energy:centerpoint-connect-services-api
  host: api-portal.centerpointconnect.io
  finding: STEP 0c ownership check. The Centerpoint API Developer Portal at api-portal.centerpointconnect.io belongs to Centerpoint
    Connect, a commercial roofing CRM company, not to CenterPoint Energy. Proved from the portal's own markup, which links
    its application at https://app.centerpointconnect.com/ and its contact page at https://centerpointconnect.com/contact/;
    centerpointconnect.com returns HTTP 200 with the title "Roofing CRM Software | Centerpoint Connect" and the description
    "All-in-one software built for commercial roofers." The two companies share only a name. The API entry, its plans entry
    and its finops meter have been removed rather than repriced.
  evidence:
  - url: https://api-portal.centerpointconnect.io/
    status: 200
  - url: https://centerpointconnect.com/
    status: 200