# Newcastle Permanent Building Society

**Canonical:** https://apis.io/providers/newcastle-permanent/  
**Website:** https://www.newcastlepermanent.com.au/  
**APIs profiled:** 14

Newcastle Permanent Building Society is a customer-owned Australian authorised deposit-taking institution (ADI) founded in 1903 and headquartered in Newcastle, New South Wales. As a mutual, it is owned by its members rather than shareholders, and it provides retail banking, home loans, savings, term deposits, and insurance to communities across NSW. In March 2023 it merged with Greater Bank to form Newcastle Greater Mutual Group (NGM Group), one of Australia's largest customer-owned banks, while Newcastle Permanent continues to operate as a consumer brand. As a regulated ADI it is a data holder under Australia's Consumer Data Right (CDR / Open Banking) and exposes a live, public, unauthenticated Product Reference Data (PRD) API conforming to the Data Standards Body Consumer Data Standards, alongside an NPBS Innovation Sandbox and Marketplace developer portal.

## Kin Score — 46.1 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 46.1).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 52.1 |
| Governance | 16.7 |
| Contract Governance | 16.7 |
| Operational Transparency | 15.8 |
| Developer Ergonomics | 35.1 |
| Commercial Clarity | 28.9 |
| Access Clarity | 28.9 |

Regulatory layer — **Banking & Open Finance**: 77.2 (matched via tags).

## Agent readiness — 31.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (14)

- **Newcastle Permanent Building Society Accounts API** — The Accounts API from Newcastle Permanent Building Society — 6 operation(s) for accounts.
- **Newcastle Permanent Building Society Banking Account Balances API** — Banking Account Balance endpoints
- **Newcastle Permanent Building Society Banking Account Direct Debits API** — Banking Account Direct Debit endpoints
- **Newcastle Permanent Building Society Banking Account Scheduled Payments API** — Banking Account Scheduled Payment endpoints
- **Newcastle Permanent Building Society Banking Account Transactions API** — Banking Account Transaction endpoints
- **Newcastle Permanent Building Society Banking Accounts API** — Banking Account endpoints
- **Newcastle Permanent Building Society Banking API** — The Banking API from Newcastle Permanent Building Society — 14 operation(s) for banking.
- **Newcastle Permanent Building Society Banking Payees API** — Banking Payee endpoints
- **Newcastle Permanent Building Society Banking Products API** — Banking Product endpoints
- **Newcastle Permanent Building Society Common API** — The Common API from Newcastle Permanent Building Society — 2 operation(s) for common.
- **Newcastle Permanent Building Society Customer API** — The Customer API from Newcastle Permanent Building Society — 2 operation(s) for customer.
- **Newcastle Permanent Building Society Direct Debits API** — The Direct Debits API from Newcastle Permanent Building Society — 2 operation(s) for direct debits.
- **Newcastle Permanent Building Society Payees API** — The Payees API from Newcastle Permanent Building Society — 2 operation(s) for payees.
- **Newcastle Permanent Building Society Scheduled Payments API** — The Scheduled Payments API from Newcastle Permanent Building Society — 2 operation(s) for scheduled payments.

## MCP servers (1)

- **Newcastle Permanent Building Society MCP Server**

## Security (2)

- **Newcastle Permanent Authentication** — none/oauth2/openIdConnect/mutualTLS · 4 schemes
- **Newcastle Permanent Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Financial, Banks, Open Banking, CDR, Consumer Banking, Building Society, Mutual, Australia

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/newcastle-permanent/). Scores are computed from the provider's own public artifacts under a published rubric.