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Full detail: Where this data comes from
Zai (hellozai.com, formerly Assembly Payments / Assembly) is an Australian payments and Payments-as-a-Service provider headquartered in Melbourne. It gives platforms, marketplaces and vertical software companies a programmable way to onboard users, hold funds in managed wallet accounts, collect pay-ins (card, direct debit, BPAY, PayID), and disburse multi-party pay-outs in a single transaction flow — layered with Australia's New Payments Platform rails via dedicated PayID and PayTo APIs.
APIs.json: https://raw.githubusercontent.com/api-evangelist/zai/refs/heads/main/apis.yml
- Payments
- Australia
- Payment Gateway
- Payment Processing
- Marketplace Payments
- Payments-as-a-Service
- Real-Time Payments
- Account-to-Account
- Open Banking
- PayTo
- PayID
- NPP
- Created: 2026-07-24
- Modified: 2026-07-24
Core payments platform API — onboard users, manage wallet accounts, items, bank/card accounts, companies, fees, tokens, callbacks and batch transactions to collect pay-ins and disburse multi-party pay-outs. OpenAPI 3.0.0, version 2.3, 89 documented paths, OAuth2 client-credentials.
- Human URL: https://developer.hellozai.com/reference/overview
- Base URL:
https://secure.api.promisepay.com - OpenAPI
- Documentation
- API Reference
Create and manage Virtual Accounts and PayIDs on the New Payments Platform (NPP) for real-time account-to-account pay-ins to uniquely addressable virtual accounts. OpenAPI 3.0.0, version 0.12-external, 8 paths.
- Human URL: https://developer.hellozai.com/reference/overview-va
- Base URL:
https://au-0000.api.assemblypay.com - OpenAPI
- API Reference
Create and manage PayTo agreements (mandated real-time debits) and initiate payments against them over the NPP. OpenAPI 3.0.1, version 1.4-external, 10 paths, bearer-token auth.
- Human URL: https://developer.hellozai.com/reference/overview-1
- Base URL:
https://au-0000.api.assemblypay.com/payto/ - OpenAPI
- Documentation
- API Reference
Submit long-running operations and retrieve their results without blocking, complementing the synchronous Assembly API. OpenAPI 3.0.0, version 1.0.0, 3 paths.
- Human URL: https://developer.hellozai.com/reference/async-overview
- Base URL:
https://tnq.api.assemblypay.com/ - OpenAPI
- API Reference
- Website
- Developer Portal
- Documentation
- Getting Started
- Webhooks
- Status Page
- Pricing
- Blog
- Support
- Sign Up / Dashboard
FN: Kin Lane Email: kin@apievangelist.com