Overview To authenticate with Amplitude, you will need:
API Key - Your Amplitude API key for authentication.Secret Key - Your Amplitude secret key for authentication.Hostname - The hostname associated with your server residency.
This guide will walk you through generating your API Key and Secret Key , and finding your Hostname within Amplitude.
Prerequisites:
You must have an Amplitude account with access to Organization settings and an Enterprise plan.
Instructions: Step 1: Generating your Amplitude API Key
Sign in to your Amplitude account.
Select Organization settings in the upper navigation.
Select API Keys . In the API Keys tab, you can see the legacy API key. This key was created along with the project.
Select the project you’re interested in.
Click Generate API Key .
Name the API key and submit the form to generate it.
Step 2: Generating your Amplitude Secret Key
In the same API Keys section, select the appropriate project.
Click Generate Secret Key .
Name the secret key and copy it to a secure location.
Amplitude doesn’t store secret keys, and there is no way to retrieve them. (The Key ID is a unique identifier for your secret key, but it’s not the key itself.)
Step 3: Finding your Hostname (Optional) The hostname is optional and depends on your Amplitude server residency. The default is the standard server:
For standard server (default): Use amplitude.com or leave blank
For EU residency server : Use analytics.eu.amplitude.com
Step 4: Enter credentials in the Connect UI Once you have your API Key , Secret Key , and Hostname :
Open the form where you need to authenticate with Amplitude.
Enter your API Key , Secret Key and Hostname in their respective fields.
Submit the form, and you should be successfully authenticated.
You are now connected to Amplitude. 
