API Reference
Postman Collection

Getting Started

About the API

The P2PMessagingSync API is a B2B SMP APIs used to exchange the following Peer-to-Peer information via the e-Hub, such as:

  1. Free-form information

  2. Documents (also called Attachments)

Getting Access

AEMO provisions access to participants or intending participants in accordance with the accreditation process outlined in the B2B e-Hub Accreditation Process.

During formal onboarding, you will first be given access to Pre-Production and must complete your development/testing there prior to getting access to Production.


Q: Can I send my message in JSON?

No. The B2B Messaging APIs only support xml payloads, specifically the aseXML standard. For details on how to use the aseXML format see: aseXML standards

External Docs

Below are a list of external links for additional context to the API or Program:

API Details

Authentication Methods

This API is using the following Security Policies:

Note: The TLS certificates used to access Pre-Production are different from those used to access Production.

Base URLs

Below are the base URLs used for this API:


Base URL

Data Type

Pre-Production Internet Entry


Test Data

Pre-Production MarketNet Entry


Test Data

Production Internet Entry


Live Data

Production MarketNet Entry


Live Data


Paths, Headers, Request Body and Responses can be found in the API Reference (OpenAPI Spec).