Nagad Uddokta API

Bangladesh Agent wallet

Nagad Uddokta agent/distributor wallet (Bangladesh) — PIN + SMS OTP login with an optional *167# device-change step, balance, transaction history & detail, account/fee lookups, agent Cash-In, and B2B transfers up/down the distributor tree.

🔐 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/nagad-uddokta/login/request-otp

Dispatch SMS OTP or signal *167# device-change

Parameter	In	Value
`account`*	query
`pinCode`*	query

curl -X POST 'https://api.openbankinggateway.com/api/nagad-uddokta/login/request-otp?account=01900000001&pinCode=2002'

POST/api/nagad-uddokta/login/verify-ussd-otp

Submit the *167# device-change USSD code

Parameter	In	Value
`account`*	query
`ussdOtp`*	query

curl -X POST 'https://api.openbankinggateway.com/api/nagad-uddokta/login/verify-ussd-otp?account=01900000001&ussdOtp=<ussdOtp>'

POST/api/nagad-uddokta/login/verify-otp

Verify OTP and issue a session token

Parameter	In	Value
`account`*	query
`otp`*	body
`uid`	body

curl -X POST 'https://api.openbankinggateway.com/api/nagad-uddokta/login/verify-otp?account=01900000001' \ -H 'Content-Type: application/json' \ -d '{"otp":"521350"}'

POST/api/nagad-uddokta/login/verify-otp-sms

Verify login from the raw SMS body

Parameter	In	Value
`account`*	query
`smsText`*	body

curl -X POST 'https://api.openbankinggateway.com/api/nagad-uddokta/login/verify-otp-sms?account=01900000001' \ -H 'Content-Type: application/json' \ -d '{"smsText":"<smsText>"}'

Account

GET/api/nagad-uddokta/balance

Wallet balance and commission (token required)

Parameter	In	Value
`token`*	query

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

GET/api/nagad-uddokta/transaction-history

Paged transaction history (token required)

Parameter	In	Value
`token`*	query
`page`	query

curl -X GET 'https://api.openbankinggateway.com/api/nagad-uddokta/transaction-history?token=<token>&page=1'

GET/api/nagad-uddokta/transaction-detail

Single transaction detail (token required)

Parameter	In	Value
`token`*	query
`txnId`*	query
`approvalDate`*	query

curl -X GET 'https://api.openbankinggateway.com/api/nagad-uddokta/transaction-detail?token=<token>&txnId=<txnId>&approvalDate=20260722'

Transfer

GET/api/nagad-uddokta/validate-account

Check a destination is a registered wallet

Parameter	In	Value
`token`*	query
`destMobile`*	query

curl -X GET 'https://api.openbankinggateway.com/api/nagad-uddokta/validate-account?token=<token>&destMobile=01800000001'

GET/api/nagad-uddokta/fee-commission

Preview fee / commission / net for a cash-in

Parameter	In	Value
`token`*	query
`destMobile`*	query
`amount`*	query
`txType`	query

curl -X GET 'https://api.openbankinggateway.com/api/nagad-uddokta/fee-commission?token=<token>&destMobile=01800000001&amount=500'

POST/api/nagad-uddokta/cash-in

Cash-In transfer to a customer wallet

Parameter	In	Value
`token`*	query
`destAccountNo`*	query
`amount`	query

curl -X POST 'https://api.openbankinggateway.com/api/nagad-uddokta/cash-in?token=<token>&destAccountNo=01800000001&amount=500'

POST/api/nagad-uddokta/b2b-to-child

B2B transfer down to a child agent

Parameter	In	Value
`token`*	query
`destAccountNo`*	query
`amount`*	query

curl -X POST 'https://api.openbankinggateway.com/api/nagad-uddokta/b2b-to-child?token=<token>&destAccountNo=01900000042&amount=25000'

POST/api/nagad-uddokta/b2b-to-parent

B2B transfer up to the parent/distributor

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

curl -X POST 'https://api.openbankinggateway.com/api/nagad-uddokta/b2b-to-parent?token=<token>&amount=50000'