generated: '2026-07-27' method: searched source: https://developer-apim.aeso.ca/developer/products?api-version=2022-04-01-preview docs: https://developer-apim.aeso.ca/products summary: >- AESO's Azure API Management instance publishes exactly one product, "AESO Public API", and it is free. There is no paid tier, no metered pricing, no usage quota published, and no approval step — the product record itself declares approvalRequired false and subscriptionsLimit 1. The only gating is legal, not commercial: subscribing requires agreeing to AESO's site terms, which permit non-commercial, personal or educational use only. plans: - name: AESO Public API id: aeso-public-api-product price: 0 currency: CAD billing: none free: true subscription_required: true approval_required: false subscriptions_limit: 1 description: Subscribers can access the AESO public data through these APIs. terms: https://www.aeso.ca/legal/ terms_summary: >- Material may be used and copied for non-commercial, personal or educational purposes provided it is not modified and copyright notices are not deleted. Any other use requires AESO's written permission. includes: - Actual Forecast Report API - AIES Gen Capacity API - Asset List API - Current Supply Demand API (v1 and v2) - Energy Merit Order Report API - Intertie Public Reports API - Load Outage Forecast API - Metered Volume Report API - Operating Reserve Offer Control Report API - Pool Participant API - Pool Price Report API - System Marginal Price Report API - Unit Commitment Data API signup: https://developer-apim.aeso.ca/signup quotas: published: false note: >- No call quota, rate limit or throttling policy is published on the product, in the developer portal, in the APIM API Gateway Instructions PDF or in any OpenAPI document. No X-RateLimit / Retry-After headers were observed on live gateway responses (probed 2026-07-27). Per-request result size is bounded instead by documented date-range caps — e.g. the Pool Price Report returns "a maximum of 1 year at a time". free_alternative: name: AESO Energy Trading System (ETS) public reports price: 0 key_required: false account_required: false base: http://ets.aeso.ca/ets_web/ip/Market/Reports note: >- The same market data is available as CSV with no key and no account from AESO's long-running ETS report servlets. This is why AESO's market data counts as genuinely open regardless of the key on the newer gateway.