Go to Bitstamp
Log in or create a new account on https://www.bitstamp.net.
Open account dashboard
Click "Account" on the top right corner.

Follow to API
Click "Security" then "API Access" on the left side menu.

Click "New API Key"
If you're creating the first API key on Bitstamp, skip this.

Select permissions
You must enable:
Account balance
User transactions
Open orders
Cancel order
Buy limit/market orders
Sell limit/market orders

Submit
Don't change other settings.

If you have 2FA on Bitstamp:

Activate

Confirm with email
Open the email from Bitstamp and confirm.

Add Bitstamp to 3Commas
Check how to connect API to 3Commas.
Customer ID
It's your login on Bitstamp.
Find it on the Change Password page.
