# Consumers Energy Green Button Connect My Data API

**Canonical:** https://apis.io/apis/cms-energy/consumers-green-button-api/  
**Provider:** CMS Energy — https://apis.io/providers/cms-energy/  
**Documentation:** https://utilityapi.com/docs/utilities/consumersenergy

Consumers Energy Green Button Connect My Data API is one of 6 APIs that [CMS Energy](https://apis.io/providers/cms-energy/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Energy Usage, Green Button, Authentication, Smart Meter, and Utility. The published artifact set on APIs.io includes API documentation.

The Consumers Energy Green Button Connect My Data API exposes customer-authorized electric and natural-gas usage data to registered third parties using the NAESB ESPI / Green Button standard. Authorization uses OAuth 2.0 with single sign-on or test-account scopes; data is delivered as Green Button XML or JSON via UtilityAPI's standardized endpoints (Meters, Bills, Intervals, Billing Summaries). Third parties register with Consumers Energy, are issued a client_id, and start in sandbox mode before being approved for live data.

## Machine-readable artifacts (3)

- **Documentation** — https://utilityapi.com/docs/utilities/consumersenergy
- **Portal** — https://utilityapi.com/
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/cms-energy/refs/heads/main/apis.yml

## Other CMS Energy APIs (5)

- [CMS Energy Authorizations API](https://apis.io/apis/cms-energy/cms-energy-authorizations-api/)
- [CMS Energy Bills API](https://apis.io/apis/cms-energy/cms-energy-bills-api/)
- [CMS Energy GreenButton API](https://apis.io/apis/cms-energy/cms-energy-greenbutton-api/)
- [CMS Energy Intervals API](https://apis.io/apis/cms-energy/cms-energy-intervals-api/)
- [CMS Energy Meters API](https://apis.io/apis/cms-energy/cms-energy-meters-api/)

## Tags

Energy Usage, Green Button, Authentication, Smart Meter, Utility

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/cms-energy/consumers-green-button-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/cms-energy/.