ATCO
ATCO Ltd. (TSX: ACO.X) is a Calgary, Alberta diversified global corporation and the controlling shareholder of Canadian Utilities Limited, through which it runs the regulated energy businesses that make it one of western Canada's largest utility groups. It sits across several tiers of the value chain at once: ATCO Electric owns and operates electricity transmission and distribution across Alberta, ATCO Gas and ATCO Pipelines distribute and transmit natural gas in the province, ATCO EnPower builds storage, renewables and hydrogen assets, ATCO Australia operates gas distribution infrastructure in Western Australia, and ATCO Energy is a competitive retailer selling electricity, natural gas and home services to Alberta customers. Its API posture is the mirror image of the Ontario utilities: no consumer energy data mandate reaches it at all. Alberta has no Green Button regulation, ATCO is not on the Green Button Alliance member list, and it does not appear in the public Australian CDR energy data holder register — so there is no consumer data API, and a customer's usage and billing data lives only behind the My Account login on a Salesforce commerce portal. What ATCO does publish, unmandated and without any signup at all, is real open grid data: ATCO Electric's DER hosting capacity map is served from a public, anonymously queryable Esri ArcGIS REST feature service carrying 880,623 feeder segment features, linked directly from ATCO Electric's own micro-generation and grid-connection pages. Open grid data, closed consumer data, no developer portal, and no OpenAPI anywhere on the estate.
ATCO 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.
ATCO 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.
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