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AEMO

AEMO, the Australian Energy Market Operator, is the independent system and market operator for Australia's electricity and gas systems — it dispatches and prices the National Electricity Market across Queensland, New South Wales, Victoria, South Australia and Tasmania every five minutes, runs the Wholesale Electricity Market and the Gas Bulletin Board in Western Australia, operates the Victorian gas declared wholesale market and the Gas Supply Hubs, maintains the MSATS metering registry and the national Distributed Energy Resources register, and publishes the Integrated System Plan. It sits at the centre of the value chain: it does not generate, network or retail energy, it clears the market and holds the settlement-grade metering data that every other participant depends on. Under the Consumer Data Right extended to energy, AEMO is the designated SECONDARY data holder and gateway — retailers are the primary data holders, and AEMO serves NMI standing data, distributed energy resource records and up to twenty-four months of interval meter data through mandated Consumer Data Standards endpoints. Its API posture splits cleanly in two, and the split is the whole story: the market-data half is genuinely, radically open — 103 live NEMWeb report directories plus 68 archive directories of dispatch, price, demand, bidding, constraint and settlement data downloadable by anyone with no key, no account and no licence, alongside anonymous JSON endpoints behind the public NEM dashboard; the participant and consumer half is completely closed — a public developer portal at dev.aemo.com.au catalogues 74 APIs and 771 operations that anyone may read, but every one of them requires registration as an AEMO market participant, a Participant ID, MSATS user rights and an AEMO-signed mutual-TLS client certificate, and the OpenAPI documents the portal exports publicly are empty shells that declare zero paths and point at internal hostnames.

AEMO 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.

AEMO 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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