ACB ONE API

Vietnam Retail bank

Asia Commercial Bank (Vietnam) — Username/password login, profile, balance, and transactions.

Overview

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Base URL: https://api.openbankinggateway.com — all responses use the unified {code, data} envelope.

Session flow: complete the login endpoints to receive a gateway token, then pass it as token= to every authenticated endpoint.

Transparency: the raw upstream fintech JSON is included under data.upstream on every response — success and error alike.

Fill in the parameters on any endpoint below and hit Send request to call the live gateway, or copy the curl example to run it from your terminal.

Discovery

GET/api/acb/check-user

Check if username exists (phone required)

Parameter	In	Value
`phone`*	query

curl -X GET 'https://api.openbankinggateway.com/api/acb/check-user?phone=0399123456'

Auth

POST/api/acb/login

Parameter	In	Value
`phone`*	query
`password`*	query

curl -X POST 'https://api.openbankinggateway.com/api/acb/login?phone=0399123456&password=<password>'

Account

GET/api/acb/profile

User profile information (token required)

Parameter	In	Value
`token`*	query

curl -X GET 'https://api.openbankinggateway.com/api/acb/profile?token=<token>'

GET/api/acb/balance

Account balance (token required)

Parameter	In	Value
`token`*	query

curl -X GET 'https://api.openbankinggateway.com/api/acb/balance?token=<token>'

GET/api/acb/transaction-history

Transaction history with pagination (token required)

Parameter	In	Value
`token`*	query
`pageNum`*	query
`pageSize`*	query

curl -X GET 'https://api.openbankinggateway.com/api/acb/transaction-history?token=<token>&pageNum=1&pageSize=20'