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.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles Ameren the way a machine reads it — 19 machine-readable artifacts across 2 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Ameren scores 20.2/100 (emerging), with a separate agent-readiness read of 7/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Ameren
Each block below is one kind of artifact we hold for Ameren. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 2
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
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
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
Ameren Plans Pricing
PLANSRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Ameren Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Ameren Finops
FINOPSFeatures 5
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
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 — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Use Cases 4
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
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 tell you where this provider already fits in a stack.
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.
Resources
Every other property we hold for Ameren — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
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
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