ATCO website screenshot

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 publishes 1 API on the APIs.io network: Electric Hosting Capacity Feature Service. Tagged areas include Energy, Canada, Utilities, Electricity, and Gas.

ATCO’s developer surface includes authentication, support, product news, and 23 more developer resources.

36.3/100 thin ▬ flat Agent 33/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessFreeSelf serve⚡ Free to try
1 APIs 1 MCP Servers
EnergyCanadaUtilitiesElectricityGasGridDistributionTransmissionDERSolarRenewablesOpen DataGeospatialAlberta

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 36.3/100 · thin
Contract Quality 11.6 / 21
Developer Ergonomics 3.1 / 17
Access Clarity 4.7 / 17
Operational Transparency 0.0 / 11
Contract Governance 1.7 / 10
Discoverability 6.5 / 9
Regulatory Posture 6.7 / 15
Agent readiness — 33/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/atco: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

ATCO Electric Hosting Capacity Feature Service

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 MA...

Open Collections 3

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

API Collection

OPEN COLLECTION

Arazzo Workflows 1

Multi-step API workflows described with the Arazzo specification.

ATCO Electric DER siting shortlist

Go from ATCO Electric's whole Alberta distribution grid to a small, mapped shortlist of the feeder segments with the most DER hosting capacity, without ever pulling all 880,623 ...

ARAZZO

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Atco Authentication

0 schemes

SECURITY

Atco Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Atco Agentic Access

5 operations

5 operations · 0 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 8

The organization behind the API

Scroll for all 8

Other 3

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
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: '0.23'
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