Ameren

Ameren Corporation is a regulated electric and natural gas utility serving customers in Missouri and Illinois. The company provides reliable energy delivery, smart grid infrastructure, and renewable energy programs. Ameren Illinois implements the Green Button Connect My Data program (Share My Usage) based on the ESPI standard, enabling authorized third parties to access customer energy usage data. Ameren also operates a Renewables Portal for community solar generation owners and participates in grid modernization initiatives.

Ameren publishes 2 APIs on the APIs.io network. Tagged areas include Utility, Energy, Electric, Natural Gas, and Smart Grid.

Ameren’s developer surface includes developer portal and 5 more developer resources.

17.6/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6
2 APIs 5 Features 4 Use Cases
UtilityEnergyElectricNatural GasSmart GridGreen ButtonRenewable EnergyFortune 500

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 17.6/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 1.7 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 3.4 / 13
Governance 0.0 / 12
Discoverability 6.9 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/ameren: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Ameren Share My Usage API

The Ameren Illinois Share My Usage API implements the Green Button Connect My Data program, providing authorized third parties access to up to 24 months of historical electric e...

Ameren Renewables Portal API

The Ameren Renewables Portal enables generation owners to manage community solar and collectively owned generation facilities, track subscriber accounts, and manage billing usag...

Pricing Plans 1

Published pricing tiers and plan structures.

Ameren Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Ameren Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Features 5

Notable capabilities this provider offers.

Green Button Connect My Data

Standard-based program (ESPI/NAESB) enabling authorized third parties to access customer electric energy usage data with OAuth customer authorization for energy analysis, billin...

Smart Meter Infrastructure

Advanced smart meter deployment enabling two-way communication, real-time usage monitoring, and automated data collection for Illinois and Missouri service territories.

Community Solar Renewables Portal

Online portal for community solar and generation owners to manage subscriber accounts and billing usage credits in Illinois.

Outage Management and Restoration

Advanced outage detection, automated notification, and faster power restoration capabilities through smart grid infrastructure.

Energy Efficiency Programs

Rebates and incentive programs for residential and business customers to reduce energy consumption and improve efficiency.

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Ameren Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Ameren Vulnerability Disclosure

security.txt · contact published

SECURITY

Use Cases 4

What developers build with this provider.

Energy Usage Data Analysis

Authorized third parties access up to 24 months of customer energy usage data for energy efficiency analysis, billing comparisons, and academic research.

Community Solar Management

Generation owners manage community solar subscriber accounts and billing credits through the Renewables Portal.

Smart Home Integration

Third-party apps and devices integrate with Ameren usage data via Green Button to provide energy management and automation services.

Retail Electric Supply Comparison

Retail electric suppliers and comparison platforms access usage data to provide customers with competitive supply options.

Integrations 3

Pre-built integrations with other platforms and tools.

Green Button Alliance

Ameren Illinois participates in the national Green Button initiative providing standardized energy data access across utilities.

Aclara

Aclara serves as Ameren Illinois's authorized data custodian for the Share My Usage Green Button program.

ESPI Standard

Energy Services Provider Interface standard from NAESB for energy usage data exchange in XML format via authenticated API.

Press 5

Recent news and press coverage referencing this provider.

St. Louis Public Radio

2026-05-25

Avista, PG&E, Ameren AI demonstrations show great ...

2026-05-25

Document

2026-05-25

Ameren Announces 2025 Results, Affirms Guidance for ...

2026-05-25

Ameren Announces 2025 Results, Affirms Guidance for 2026 ...

2026-05-25

Resources

Get Started 1

Portal, sign-up, and the first successful call

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: ameren
name: Ameren
description: Ameren Corporation is a regulated electric and natural gas utility serving customers in Missouri and Illinois.
  The company provides reliable energy delivery, smart grid infrastructure, and renewable energy programs. Ameren Illinois
  implements the Green Button Connect My Data program (Share My Usage) based on the ESPI standard, enabling authorized third
  parties to access customer energy usage data. Ameren also operates a Renewables Portal for community solar generation owners
  and participates in grid modernization initiatives.
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ameren.png
tags:
- Utility
- Energy
- Electric
- Natural Gas
- Smart Grid
- Green Button
- Renewable Energy
- Fortune 500
url: https://raw.githubusercontent.com/api-evangelist/ameren/refs/heads/main/apis.yml
created: '2026-03-23'
modified: '2026-04-19'
specificationVersion: '0.19'
apis:
- aid: ameren:share-my-usage-api
  name: Ameren Share My Usage API
  description: The Ameren Illinois Share My Usage API implements the Green Button Connect My Data program, providing authorized
    third parties access to up to 24 months of historical electric energy usage data for residential and small commercial
    customers via the ESPI (Energy Services Provider Interface) standard. Authentication uses OAuth with customer authorization
    via Ameren Illinois online accounts. Operated by data custodian Aclara.
  humanURL: https://www.ameren.com/partners/account-and-data/share-my-usage
  baseURL: https://api.ameren.com
  tags:
  - Green Button
  - Energy Data
  - ESPI
  - Smart Meter
  - Data Sharing
  properties:
  - type: Documentation
    url: https://www.ameren.com/partners/account-and-data/share-my-usage
  - type: Authentication
    url: https://www.ameren.com/partners/account-and-data/share-my-usage
- aid: ameren:renewables-portal-api
  name: Ameren Renewables Portal API
  description: The Ameren Renewables Portal enables generation owners to manage community solar and collectively owned generation
    facilities, track subscriber accounts, and manage billing usage credits in Illinois. Supports community renewable energy
    including solar, wind, hydro-electric, fuel cells, and agricultural energy sources.
  humanURL: https://www.ameren.com/service/renewables/developers/renewables-portal
  baseURL: https://anm.ameren.com
  tags:
  - Renewable Energy
  - Community Solar
  - Generation Management
  - Illinois
  properties:
  - type: Documentation
    url: https://www.ameren.com/service/renewables/developers/renewables-portal
  - type: Portal
    url: https://anm.ameren.com/illinois/registration
common:
- type: VulnerabilityDisclosure
  url: security/ameren-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/ameren-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/AmerenCorp
- type: LinkedIn
  url: https://www.linkedin.com/company/ameren
- type: Website
  url: https://www.ameren.com/
- type: Portal
  url: https://www.ameren.com/partners/account-and-data/share-my-usage
- type: Features
  data:
  - name: Green Button Connect My Data
    description: Standard-based program (ESPI/NAESB) enabling authorized third parties to access customer electric energy
      usage data with OAuth customer authorization for energy analysis, billing, and research.
  - name: Smart Meter Infrastructure
    description: Advanced smart meter deployment enabling two-way communication, real-time usage monitoring, and automated
      data collection for Illinois and Missouri service territories.
  - name: Community Solar Renewables Portal
    description: Online portal for community solar and generation owners to manage subscriber accounts and billing usage credits
      in Illinois.
  - name: Outage Management and Restoration
    description: Advanced outage detection, automated notification, and faster power restoration capabilities through smart
      grid infrastructure.
  - name: Energy Efficiency Programs
    description: Rebates and incentive programs for residential and business customers to reduce energy consumption and improve
      efficiency.
- type: UseCases
  data:
  - name: Energy Usage Data Analysis
    description: Authorized third parties access up to 24 months of customer energy usage data for energy efficiency analysis,
      billing comparisons, and academic research.
  - name: Community Solar Management
    description: Generation owners manage community solar subscriber accounts and billing credits through the Renewables Portal.
  - name: Smart Home Integration
    description: Third-party apps and devices integrate with Ameren usage data via Green Button to provide energy management
      and automation services.
  - name: Retail Electric Supply Comparison
    description: Retail electric suppliers and comparison platforms access usage data to provide customers with competitive
      supply options.
- type: Integrations
  data:
  - name: Green Button Alliance
    description: Ameren Illinois participates in the national Green Button initiative providing standardized energy data access
      across utilities.
  - name: Aclara
    description: Aclara serves as Ameren Illinois's authorized data custodian for the Share My Usage Green Button program.
  - name: ESPI Standard
    description: Energy Services Provider Interface standard from NAESB for energy usage data exchange in XML format via authenticated
      API.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com