TOTP generated using pyotp is not validating in SmartAPI login (Invalid totp AB1050)

P187170

Hello SmartAPI Team,

I am trying to authenticate using the SmartAPI Python SDK with TOTP enabled.

However, the login request consistently returns the following error:

Error Code: AB1050
Message: Invalid totp

Details of my setup:

• Python version: 3.13
• Library: smartapi-python
• TOTP generated using: pyotp
• Authentication method: client_id + password + totp

My login code:

from SmartApi import SmartConnect
import pyotp

api_key = "API_KEY"
client_id = "CLIENT_ID"
password = "PASSWORD"
totp_secret = "SECRET_KEY"

totp = pyotp.TOTP(totp_secret).now()

obj = SmartConnect(api_key)

data = obj.generateSession(client_id, password, totp)

print(data)

Troubleshooting steps already performed:

Verified that TOTP generated using pyotp matches the TOTP generated using online generator:
https://totp.danhersam.com
Verified that the same secret key produces identical OTP in multiple generators.
System time synchronized with internet time server.

Despite this, SmartAPI login still returns:

{
"status": False,
"message": "Invalid totp",
"errorcode": "AB1050"
}

Could you please clarify:

Is there a specific method required to generate TOTP for SmartAPI?
Does SmartAPI require TOTP generated from the SmartAPI TOTP enable page specifically?
Are there any restrictions on authenticator apps (Google Authenticator / Microsoft Authenticator)?

Any guidance would be greatly appreciated.

Thank you.

algo_trading_50

@p187170 Pass (4 digits) MPIN as string in the password field.

password = "MPIN"