Green Button Alliance
The Green Button Alliance (GBA) is the non-profit that stewards, tests and certifies the Green Button standard — the NAESB REQ.21 Energy Services Provider Interface (ESPI) profile for utility customer electricity, natural gas and water usage data, in its Download My Data (DMD) and Connect My Data (CMD) forms. Incorporated in North Carolina and headquartered at PO Box 268, Jamison, Pennsylvania, it was formed after the 2012 White House / U.S. Department of Energy / NIST call to action and is the industry's only source of Green Button certification (Data Custodian DMD $3,000, CMD $3,200, membership not required), alongside a free public Directory Services listing of utilities, third-party apps and platform providers. GBA sits in the standards-and-certification layer of the United States energy value chain, above the investor-owned utilities and the energy-data platforms (UtilityAPI, Con Edison and Enbridge Gas are sponsor members) that actually move consumer data. Its API posture is contracts without a service: two real OpenAPI 3.x definitions of the CMD ESPI resource server are published free under Apache 2.0 on GitHub, but the normative ESPI v4.0 standard itself must be purchased from NAESB, GBA operates no production consumer-data or market-data API of its own, and its ESPI sandbox at sandbox.greenbuttonalliance.org:8443 is offline pending a replacement platform expected 2026Q3. Green Button in the United States is voluntary — there is no federal mandate — with obligation arriving only through state action and, outside the US, Ontario's O. Reg. 633/21.
Green Button Alliance is tracked in the API Evangelist network. This page is the human-readable profile that sits on top of the machine-readable index we maintain at apis.io.
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. The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Green Button Alliance is in the network as a tracked entity. We haven't yet indexed a public API surface for it — when one is published, the artifacts, score, and agent-readiness read will appear here automatically. The source repository is where that profile is built.
← All providers · Data indexed from github.com/api-evangelist/green-button-alliance · machine-readable index on apis.io