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BlockFin API Guide

Updated this week

No BlockFin account?


1. Generate API Key

After logging in, go to your BlockFin API Management Page under page under [Profile] > [API Key]


Click [Create API Key]

2. Set API Key Permissions


Enable permissions as follows

  • API Key Usage - Select [API Transaction]

  • API Key name - Enter a recognizable label (e.g., LoT)

  • Read Permissions - Allows access to the data needed for your portfolio (default selection)

  • Passphrase - Set a password (must be saved separately)

IP Address - Copy and paste the IP address below

13.125.43.240 15.164.247.43 15.165.202.142 52.78.44.39 52.79.98.194 3.37.176.95 13.125.70.43 3.39.124.79 3.34.82.171 13.124.238.107 13.124.81.58 13.125.104.68 13.209.34.187 15.165.122.157 15.165.192.190 15.165.212.153 3.34.12.185 3.34.63.171 3.35.144.158 3.36.236.219


This blocks external access and keeps your account secure.


3. Complete the security verification process


Enter the email verification code and Google Authenticator OTP
After saving the issued API Key and Secret Key, connect it to your League of Traders account.

The secret key will not appear again, so please be mindful. You could permanently lose access to your API Key if you lose these codes.

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