aid: atco url: https://raw.githubusercontent.com/api-evangelist/atco/refs/heads/main/apis.yml name: ATCO kind: company description: >- 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. accessModel: pricing: free onboarding: self-serve trial: false try_now: true public: true label: Free · Anonymous, no signup (open grid data only) confidence: high source: - documentation generated: '2026-07-27' method: manual image: https://www.atco.com/favicon.ico tags: - Energy - Canada - Utilities - Electricity - Gas - Grid - Distribution - Transmission - DER - Solar - Renewables - Open Data - Geospatial - Alberta created: '2026-07-27' modified: '2026-07-27' specificationVersion: '0.19' apis: - aid: atco:atco-electric-hosting-capacity-feature-service name: ATCO Electric Hosting Capacity Feature Service description: >- ATCO Electric's distributed energy resource (DER) hosting capacity data, published as a public Esri ArcGIS REST feature service and surfaced through the "DER HOSTING CAPACITY MAP" web application that ATCO Electric links from its micro-generation and connect-to-the-grid pages. The service is registered in ATCO's own ArcGIS Online organization (urlKey "ATCO", item id 7b4d2b3dcecb4a509f34cbfc3587ff3e, item title "ATCO Electric Hosting Capacity", description "CYME Hosting Capacity Map", access "public"). A single polyline feature layer, "Hosting Capacity (KW)", exposes FEEDER, PHASE, SUB_NAME, SUB_NUM, DATELOADED, DER_CAP_KW, DER_CAP_KW1 and PROJECT_AREA fields. An anonymous, unauthenticated query against layer 0 returned a feature count of 880,623 on 2026-07-27. Service capabilities are "Query" only, maxRecordCount 1000. There is no ATCO documentation page, no OpenAPI definition, and no published usage terms — the contract is the self-describing ArcGIS REST service descriptor itself, harvested verbatim into openapi/. humanURL: https://electric.atco.com/en-ca/connections-services/new-connections-changes/micro-generation.html baseURL: https://services7.arcgis.com/cw2emabghNLkoYlB/arcgis/rest/services/AGO_HostingCapacity/FeatureServer tags: - Grid - DER - Hosting Capacity - Distribution - Geospatial - Open Data - Micro-generation properties: - type: APIReference url: https://services7.arcgis.com/cw2emabghNLkoYlB/arcgis/rest/services/AGO_HostingCapacity/FeatureServer?f=json - type: APIReference url: https://services7.arcgis.com/cw2emabghNLkoYlB/arcgis/rest/services/AGO_HostingCapacity/FeatureServer/0?f=json - type: ServiceDescriptor url: openapi/atco-electric-hosting-capacity-featureserver.esri.json - type: ServiceDescriptor url: openapi/atco-electric-hosting-capacity-layer-0.esri.json - type: OpenAPI name: OpenAPI 3.1 (API Evangelist generated from the Esri descriptors — ATCO publishes none) url: openapi/atco-electric-hosting-capacity-openapi.yml - type: Overlay url: overlays/atco-electric-hosting-capacity-overlay.yaml - type: Examples url: examples/atco-hosting-capacity-examples.yml - type: DataModel url: data-model/atco-data-model.yml - type: ErrorCatalog url: errors/atco-problem-types.yml - type: Arazzo name: ATCO Electric DER siting shortlist url: arazzo/atco-der-siting-shortlist.yml - type: Documentation url: https://electric.atco.com/en-ca/connections-services/new-connections-changes/micro-generation.html - type: Documentation url: https://electric.atco.com/en-ca/connections-services/new-connections-changes/connect-grid.html - type: Application url: https://atco.maps.arcgis.com/apps/webappviewer/index.html?id=fa9c52c758b64f90ada01c9d27609d8d - type: Standard url: https://developers.arcgis.com/rest/services-reference/enterprise/feature-service/ common: - type: AgenticAccess url: agentic-access/atco-agentic-access.yml - type: DomainSecurity url: security/atco-domain-security.yml - type: Authentication name: Authentication profile — anonymous, no credential of any kind url: authentication/atco-authentication.yml - type: Conventions url: conventions/atco-conventions.yml - type: Lifecycle url: lifecycle/atco-lifecycle.yml - type: Conformance url: conformance/atco-conformance.yml - type: WellKnown url: well-known/atco-well-known.yml - type: LLMsTxt url: llms/atco-llms.txt - type: MCPServer name: Candidate MCP tool set (derived — ATCO publishes no MCP server) url: mcp/atco-mcp.yml - type: ToolCrosswalk url: mcp/atco-tool-crosswalk.yml - type: AgentSkill url: skills/_index.yml - type: Website url: https://www.atco.com/ - type: About url: https://www.atco.com/en-ca/about-us.html - type: Website url: https://electric.atco.com/en-ca.html - type: Website url: https://gas.atco.com/en-ca.html - type: Website url: https://www.atcoenergy.com/ - type: SignIn url: https://store.atco.com/ccrz__CCSiteLogin - type: Login url: https://store.atco.com/ccrz__CCSiteLogin - type: PrivacyPolicy url: https://www.atco.com/en-ca/privacy.html - type: TermsOfService url: https://www.atco.com/en-ca/terms-of-use.html - type: Support name: General ATCO contact — there is no developer support channel url: https://www.atco.com/en-ca/about-us/contact.html - type: News url: https://www.atco.com/en-ca/about-us/news.html - type: Investors url: https://www.atco.com/en-ca/investors.html - type: LinkedIn url: https://www.linkedin.com/company/atco-group - type: Regulator url: https://www.auc.ab.ca/ - type: Regulator url: https://www.aeso.ca/ maintainers: - FN: Kin Lane email: kin@apievangelist.com