Getting started

About the WEM Attributes Report API

This report is available via RESTful web services and can be accessed using HTTP GET requests. All data returned is in JSON format. The report in WEMS MPI is no longer available.

This report can request the market parameter values on current trade date as well as for a specific trade date. Please note that you must not be logged into the MPI while making the requests.

For support, contact WA Energy Market Management:

• Email: wa.operations@aemo.com.au

Navigating this reference 

This page provides an overview of the API as well as information on how to use it. 

The icons at the top of the page link to the following, more detailed information sources:  

• The API Reference describes the paths, headers, request body and responses for each of the endpoints in the API. 

• The Swagger File links to the latest version of the swagger file for the API. 

Prerequisites for API access

Before using this API, you need the following:

• An enabled user account (created by your Market Participant Administrator) attached to a Registered Market Participant (see WEMS MPI User Management User Guide).

• A DigiCert Certificate created and installed for the user account.

For more information, see The Reformer: Accessing our test environments. 

External documents

• None

Non-functional requirements 

The following provisional non-functional requirements (NFR) are relevant to this API. These may be revised in subsequent versions following consultation with Market Participants. 

Request/response payload required limits:

• For all APIs, there is an enforced 10 MB max limit. 

Rate Limits (Throttling) applied per user:

• An individual user is restricted to accessing 50 calls to this API every minute, with a total of 250 calls in five minutes.

API details

Authentication method

This API uses the DigiCert TLS certificate authentication method.  

Base URLs

The base URLs used for this API are included below: