Xcel Energy
Xcel Energy is a major U.S. electricity and natural gas utility holding company headquartered in Minneapolis, Minnesota, providing service to approximately 3.7 million electricity customers and 2.1 million natural gas customers across eight Midwestern and Western states: Colorado, Minnesota, Texas, New Mexico, North Dakota, South Dakota, Michigan, and Wisconsin. Xcel Energy operates a developer portal at developer-apim.aws.xcelenergy.com that organizes APIs across customer account management, billing, payments, product and service offerings, and request service. The company provides Green Button Connect My Data APIs based on the ESPI (Energy Services Provider Interface) standard developed by NAESB, enabling authorized third-party applications to access customer energy usage data via OAuth 2.0. Xcel Energy also supports IEEE 2030.5 protocol on newer Itron Gen 5 Riva smart meters for direct local-network access to real-time energy data including solar production. Beyond data APIs, Xcel Energy is a Fortune 500 company investing in clean energy, grid modernization, electric vehicle programs, demand response, and renewable energy interconnection.
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 Xcel Energy the way a machine reads it — 95 machine-readable artifacts across 29 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 — Xcel Energy scores 18.2/100 (emerging), with a separate agent-readiness read of 25/100 (agent aware). 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. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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How we profile Xcel Energy
Each block below is one kind of artifact we hold for Xcel Energy. 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 29
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.
Xcel Energy ApplicationInformation API
Third-party application registration metadata used by the Data Custodian.
Xcel Energy Authorization API
OAuth 2.0 authorizations granted by retail customers to third-party applications.
Xcel Energy Batch API
Bulk Atom feeds aggregating multiple resources for a subscription.
Xcel Energy Configuration API
Configuration resource for a device.
Xcel Energy DemandResponse API
Demand Response programs and load control events.
Xcel Energy DER API
Distributed Energy Resource programs, controls, and settings.
Xcel Energy DeviceCapability API
Root resource that lists the function sets supported by the meter.
Xcel Energy DeviceInformation API
Manufacturer, hardware, and firmware metadata for a device.
Xcel Energy DeviceStatus API
Operational status, op-time, and event indicators for a device.
Xcel Energy ElectricPowerQualitySummary API
Aggregate power-quality measurements for a UsagePoint.
Xcel Energy ElectricPowerUsageSummary API
Billing-period aggregate summaries of electric power usage.
Xcel Energy EndDevice API
End devices managed by the meter (the meter itself and any subordinate devices).
Xcel Energy FunctionSetAssignments API
Groups of function sets assigned to an EndDevice by the server operator.
Xcel Energy IntervalBlock API
Time-series interval-level energy usage data captured at a meter.
Xcel Energy LocalTimeParameters API
Time zone and daylight-savings-time parameters used to interpret interval timestamps.
Xcel Energy Log API
Log events emitted by the device.
Xcel Energy Messaging API
Text and HTML messages targeted at end-users.
Xcel Energy MeterReading API
Container for measured IntervalBlocks captured at a UsagePoint.
Xcel Energy MirrorUsagePoint API
Client-supplied mirror usage points used to publish readings to the server.
Xcel Energy PowerStatus API
Real-time power flow and battery status for a device.
Xcel Energy ReadingType API
Metadata describing the units, multiplier, accumulation, and flow direction of meter readings.
Xcel Energy Registration API
EndDevice registration and provisioning state.
Xcel Energy Response API
Acknowledgement responses for received events.
Xcel Energy RetailCustomer API
Retail customer, account, agreement, service location, and meter information.
Xcel Energy SelfDevice API
Convenience resource referring to the device that hosts the API.
Xcel Energy ServiceStatus API
Operational status of the Green Button Connect My Data service.
Xcel Energy Subscription API
Subscription/notification resources for resource-change events.
Xcel Energy Time API
Current device time and time-zone configuration.
Xcel Energy UsagePoint API
Logical metered points that produce energy usage data for a service.
Scroll within the panel for all 29 ·
Open Collections 30
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONXcel Energy Green Button Connect My Data ApplicationInformation DeviceInformation API
OPEN COLLECTIONXcel Energy Green Button Connect My Data ApplicationInformation ElectricPowerQualitySummary API
OPEN COLLECTIONXcel Energy Green Button Connect My Data ApplicationInformation ElectricPowerUsageSummary API
OPEN COLLECTIONXcel Energy Green Button Connect My Data ApplicationInformation FunctionSetAssignments API
OPEN COLLECTIONScroll within the panel for all 30 ·
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 things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate 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.
Xcel Energy 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.
Xcel Energy Finops
FINOPSFeatures 10
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
OAuth 2.0 authorized API access to customer electricity and natural gas usage data following the ESPI standard.
IEEE 2030.5 Smart Meter API
Direct local-network access to real-time energy data including solar production from Itron Gen 5 Riva meters.
Customer Account Management
API category covering customer account profile, preferences, and service management.
Billing & Billing Account Management
API category for billing data, statements, and billing account operations.
Payments & Payment Services
API category for payment processing and payment service operations against customer accounts.
Product & Service Offerings
API category covering Xcel Energy product and service catalog and program enrollment.
Request Service & Help
API category for service requests, support workflows, and customer help operations.
Smart Meter Data
Interval and billing-quality energy usage data captured from Xcel Energy smart meters across electricity and natural gas.
Demand Response Integration
Programs that allow utilities and third parties to coordinate load reduction events with smart meter and DER endpoints.
Solar Interconnection Data
Solar production data exposed through smart meter endpoints for customers with on-site photovoltaic systems.
Scroll within the panel for all 10 ·
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.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 8
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 Management Applications
Third-party apps that help customers track and reduce electricity and natural gas usage.
Solar Monitoring
Applications that track on-site solar production and consumption from IEEE 2030.5 smart meters.
Home Energy Automation
Smart home and HVAC systems that automate energy use based on real-time meter data.
Sustainability Reporting
Commercial customers reporting carbon and energy data for ESG and sustainability disclosures.
Building Performance Benchmarking
Whole-building energy benchmarking for ENERGY STAR Portfolio Manager and similar tools.
Demand Response Programs
Aggregators and DER providers integrating with utility dispatch signals.
Electric Vehicle Charging Optimization
EV charging applications that schedule charging based on time-of-use rates and grid conditions.
Research and Policy Analysis
Academic and policy research on energy consumption patterns and decarbonization.
Scroll within the panel for all 8 ·
Integrations 6
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
Certified Green Button Connect My Data implementation interoperable with the Green Button ecosystem.
NAESB ESPI
Implements the North American Energy Standards Board Energy Services Provider Interface standard for energy usage data.
IEEE 2030.5
Smart Energy Profile 2.0 standard implemented on Itron Gen 5 Riva meters for local device APIs.
Itron
Smart meter deployments use Itron Gen 5 Riva devices that host the IEEE 2030.5 server.
ENERGY STAR Portfolio Manager
Whole-building benchmarking workflows can consume Green Button data for commercial customers.
OAuth 2.0
Authorization framework used for customer-consented access to Green Button Connect My Data.
Solutions 5
Packaged solutions the provider offers on top of the raw API surface.
Packaged solutions this provider offers.
Residential Customers
Residential energy usage, billing, and program enrollment across electricity and natural gas service.
Business Customers
Commercial and industrial customer programs, rates, and aggregated usage data.
Third-Party Service Providers
Authorized energy management, demand response, and sustainability service providers consuming Green Button data.
Trade Partners
Contractors, installers, and program partners delivering energy efficiency and renewable installations.
Researchers and Policy Analysts
Anonymized and customer-authorized data access for academic and policy research.
Resources
Every other property we hold for Xcel Energy — 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 4
Portal, sign-up, and the first successful call
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/xcel-energy · machine-readable index on apis.io
This is an independent, third-party profile of Xcel Energy, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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