# Westpac PayWay REST API

**Canonical:** https://apis.io/apis/westpac/westpac-payway-rest-api/  
**Provider:** Westpac Banking Corporation — https://apis.io/providers/westpac/  
**Base URL:** https://api.payway.com.au/rest/v1  
**Documentation:** https://www.payway.com.au/docs/rest.html

Westpac PayWay REST API is one of 9 APIs that [Westpac Banking Corporation](https://apis.io/providers/westpac/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Payments, Card Payments, Payment Gateway, Merchants, and Australia. The published artifact set on APIs.io includes API documentation and a getting-started guide.

First-party Westpac payment API (beyond CDR). PayWay is Westpac's merchant payment platform; its public REST API v1 processes real-time credit-card and bank-account payments, refunds, pre-authorisations and captures, plus a customer vault, single-use tokens, EMV 3-D Secure authentication, bulk payment files, surcharges and merchant configuration. Uses HTTP Basic auth with a publishable or secret API key over TLS 1.2+ at api.payway.com.au/rest/v1. Fully documented publicly but NO downloadable OpenAPI/Swagger is published (reference docs and Postman-based exploration only), so no machine-readable spec is wired.

## Machine-readable artifacts (4)

- **Documentation** — https://www.payway.com.au/docs/rest.html
- **GettingStarted** — https://www.payway.com.au/docs/api-developers-guide/
- **SignUp** — https://www.westpac.com.au/business-banking/merchants-and-payments/online-payments/payway-api/
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/westpac/refs/heads/main/apis.yml

## Other Westpac Banking Corporation APIs (8)

- [Westpac QuickStream REST API](https://apis.io/apis/westpac/westpac-quickstream-rest-api/)
- [Westpac Banking Corporation Banking Account Balances API](https://apis.io/apis/westpac/westpac-banking-account-balances-api/)
- [Westpac Banking Corporation Banking Account Direct Debits API](https://apis.io/apis/westpac/westpac-banking-account-direct-debits-api/)
- [Westpac Banking Corporation Banking Account Scheduled Payments API](https://apis.io/apis/westpac/westpac-banking-account-scheduled-payments-api/)
- [Westpac Banking Corporation Banking Account Transactions API](https://apis.io/apis/westpac/westpac-banking-account-transactions-api/)
- [Westpac Banking Corporation Banking Accounts API](https://apis.io/apis/westpac/westpac-banking-accounts-api/)
- [Westpac Banking Corporation Banking Payees API](https://apis.io/apis/westpac/westpac-banking-payees-api/)
- [Westpac Banking Corporation Banking Products API](https://apis.io/apis/westpac/westpac-banking-products-api/)

## Tags

Payments, Card Payments, Payment Gateway, Merchants, Australia

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/westpac/westpac-payway-rest-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/westpac/.