Great Southern Bank
Great Southern Bank is one of Australia's largest customer-owned (mutual) banks, operating as a business name of Credit Union Australia Ltd (ABN 44 087 650 959, AFSL and Australian Credit Licence 238317). Formerly known as Credit Union Australia (CUA) before rebranding to Great Southern Bank in 2021, it is owned by its customers rather than shareholders and serves retail and small-business members with transaction accounts, savings, term deposits, home loans, credit cards, and insurance. As an Australian authorised deposit-taking institution (ADI) it participates in the Consumer Data Right (CDR / Open Banking) as a data holder, exposing public, unauthenticated Product Reference Data (PRD) APIs for both its retail and Business+ brands that conform to the Data Standards Body (DSB) Consumer Data Standards (CDS). Authenticated consumer data sharing is available only to accredited data recipients (ADRs) via the CDR ecosystem; the bank does not operate a self-serve public developer portal.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Great Southern Bank the way a machine reads it — 11 machine-readable artifacts across 7 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
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. From those artifacts we compute the Kin Score — Great Southern Bank scores 48.4/100 (developing), with a separate agent-readiness read of 55/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Great Southern Bank
Each block below is one kind of artifact we hold for Great Southern Bank. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 7
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Great Southern Bank Banking Account Balances API
Banking Account Balance endpoints
Great Southern Bank Banking Account Direct Debits API
Banking Account Direct Debit endpoints
Great Southern Bank Banking Account Scheduled Payments API
Banking Account Scheduled Payment endpoints
Great Southern Bank Banking Account Transactions API
Banking Account Transaction endpoints
Great Southern Bank Banking Accounts API
Banking Account endpoints
Great Southern Bank Banking Payees API
Banking Payee endpoints
Great Southern Bank Banking Products API
Banking Product endpoints
Scroll within the panel for all 7 ·
MCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
Model Context Protocol servers that expose these APIs to AI agents.
great-southern-bank-mcp.yml
MCP SERVERSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Resources
Every other property we hold for Great Southern Bank — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 2
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Access & Security 4
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/great-southern-bank · machine-readable index on apis.io