Create a Replit account and open your project
Add a new Repl or open an existing one
Install the Gemini SDK or required package in Replit
Get your Gemini API key from Google AI Studio or the Gemini API console
Open Replit Secrets or Environment Variables
Add a secret named `GEMINI_API_KEY`
Paste your Gemini API key as the value
Import the Gemini library in your code
Read the API key from environment variables in your code
Initialize the Gemini client with the API key
Write a request to the Gemini model
Run the Repl to test the connection
Check the output and fix any authentication or package errors
Keep the API key out of your code and use Secrets only