slice Business API

India Merchant banking

slice Business merchant banking (India) — OTP login, profile & balance, collection/passbook ledgers, beneficiaries, and two-step bank transfer.

🔐 Try the login demo →

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.

Auth

POST/api/slice/login/start

Start OTP login

Parameter	In	Value
`phone`*	query
`pin`*	query

curl -X POST 'https://api.openbankinggateway.com/api/slice/login/start?phone=9000000000&pin=0000'

POST/api/slice/login/confirm

Confirm OTP and issue a session token

Parameter	In	Value
`phone`*	query
`otp`*	query

curl -X POST 'https://api.openbankinggateway.com/api/slice/login/confirm?phone=9000000000&otp=123456'

Account

GET/api/slice/profile

Merchant profile (token required)

Parameter	In	Value
`token`*	query

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

GET/api/slice/account-screen

Balance and bank account summary (token required)

Parameter	In	Value
`token`*	query

curl -X GET 'https://api.openbankinggateway.com/api/slice/account-screen?token=<token>'

GET/api/slice/transactions

Recent QR/UPI collections (token required)

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

curl -X GET 'https://api.openbankinggateway.com/api/slice/transactions?token=<token>&pageNumber=0&pageSize=10'

GET/api/slice/passbook

Bank passbook ledger, CREDIT/DEBIT (token required)

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

curl -X GET 'https://api.openbankinggateway.com/api/slice/passbook?token=<token>&pageNumber=0&pageSize=10'

Transfer

GET/api/slice/beneficiary/manage

List saved beneficiaries (token required)

Parameter	In	Value
`token`*	query

curl -X GET 'https://api.openbankinggateway.com/api/slice/beneficiary/manage?token=<token>'

POST/api/slice/sendMoney/prepare

Prepare bank transfer (sends confirmation OTP)

Parameter	In	Value
`token`*	query
`beneficiaryId`*	query
`amount`*	query
`notes`	query

curl -X POST 'https://api.openbankinggateway.com/api/slice/sendMoney/prepare?token=<token>&beneficiaryId=<beneficiaryId>&amount=100.00'

POST/api/slice/sendMoney/confirm

Confirm bank transfer with OTP

Parameter	In	Value
`token`*	query
`otp`*	query

curl -X POST 'https://api.openbankinggateway.com/api/slice/sendMoney/confirm?token=<token>&otp=<otp>'