Rotate Gemini API Keys in Doppler and n8n

Learn how to generate new Google AI Studio Gemini API keys, update production secrets in Doppler, update n8n credentials, and revoke old keys.

September 29, 2026 By Arslan Ahmed

Purpose

This guide details the procedure for generating and rotating Google Gemini API keys across core services. Completing this workflow ensures updated credentials sync properly to production in Doppler and to automated workflows in n8n, ending with the secure deletion of obsolete keys in Google AI Studio.

Scope

This procedure applies to technical operations and engineering team members responsible for maintaining production credentials and automation workflows. It covers generating API keys in Google AI Studio, updating environment secrets for the Sales Genius Portal in Doppler, updating automation credentials in n8n, and revoking deprecated keys. Third-party integrations outside Doppler and n8n are out of scope.

Generate and Update the Sales Genius Portal Key

Navigate to aistudio.google.com to begin the rotation process.

Step #1: Click → Get started. — Click **→ Get started**.

Step #2: Select the clientcare@salesgenius.co account to sign in. — Select the **clientcare@salesgenius.co** account to sign in.

Step #3: Enter your credentials and click Next. — Enter your credentials and click **Next**.

Step #4: Click Get API key in the bottom-left sidebar. — Click **Get API key** in the bottom-left sidebar.

Step #5: Click Create API key. — Click **Create API key**.

Step #6: In the dialog, name the key Sales Genius Portal. — In the dialog, name the key `Sales Genius Portal`.

Step #7: Select the Gemini API project from the project dropdown. — Select the **Gemini API** project from the project dropdown.

Step #8: Click Create key. — Click **Create key**.

Step #9: Click the copy button next to the generated key string. — Click the copy button next to the generated key string.

Step #10: Switch to Doppler and click Projects in the sidebar navigation. — Switch to Doppler and click **Projects** in the sidebar navigation.

Step #11: Click on the salesgenius - portal project. — Click on the **salesgenius - portal** project.

Step #12: Select the prd production environment. — Select the **prd** production environment.

Step #13: Use the secrets search bar to find Gemini. — Use the secrets search bar to find `Gemini`.

Step #14: Click the hidden secret value field to reveal the existing key. — Click the hidden secret value field to reveal the existing key.

Step #15: Select the existing key value and paste the newly copied API key. — Select the existing key value and paste the newly copied API key.

Step #17: Click Save again on the confirmation modal to apply the changes. — Click **Save** again on the confirmation modal to apply the changes.

Saving this secret automatically syncs the updated Gemini key to the DigitalOcean Sales Genius portal environment.

Generate and Update the n8n Key

Return to Google AI Studio to generate a dedicated key for automated workflows.

Step #1: Close the active API key dialog in Google AI Studio. — Close the active API key dialog in Google AI Studio.

Step #2: Click Create API key. — Click **Create API key**.

Step #3: Name the key n8n Sales Genius. — Name the key `n8n Sales Genius`.

Step #4: Select the Gemini API project from the dropdown. — Select the **Gemini API** project from the dropdown.

Step #5: Click Create key. — Click **Create key**.

Step #6: Click the copy button to copy the new API key string. — Click the copy button to copy the new API key string.

Step #7: Switch to n8n and click Credentials. — Switch to n8n and click **Credentials**.

Step #8: In the credential search field, type Gemini. — In the credential search field, type `Gemini`.

Step #9: Click on the SalesGenius Gemini credential item. — Click on the **SalesGenius Gemini** credential item.

Step #10: Select the current API key field and paste your new key. — Select the current API key field and paste your new key.

Revoke Deprecated Keys

Once both destination systems have received their updated keys, revoke the old keys in Google AI Studio.

Step #1: Return to Google AI Studio and close the key details dialog. — Return to Google AI Studio and close the key details dialog.

Step #2: Locate the deprecated key row and click the More options (three dots) icon. — Locate the deprecated key row and click the **More options** (three dots) icon.

Step #3: Select Delete key from the dropdown menu. — Select **Delete key** from the dropdown menu.

Step #4: Click Delete on the confirmation dialog to permanently revoke the old key. — Click **Delete** on the confirmation dialog to permanently revoke the old key.

FAQ

Q: Why are two separate Gemini API keys created during this process?

A: One key is dedicated to the Sales Genius Portal and stored in Doppler, while the other is dedicated specifically to n8n automated workflows.

Q: How does saving the key in Doppler affect downstream hosting?

A: Saving the updated secret in the Doppler production (prd) environment automatically syncs the value down to the DigitalOcean Sales Genius portal.

Q: When is it safe to delete the old keys from Google AI Studio?

A: Only delete obsolete keys after both Doppler and n8n have received and saved their respective new API keys.

Glossary

Term	Definition
Google AI Studio	The web interface used to generate, configure, and manage Google Gemini API keys.
Doppler	The centralized secret management platform used to store and sync production environment variables.
prd	The Doppler production environment branch for the Sales Genius Portal project.
n8n	The workflow automation tool executing scheduled and event-based processes utilizing the Gemini integration.

Rotate Gemini API Keys in Doppler and n8n

Learn how to generate new Google AI Studio Gemini API keys, update production secrets in Doppler, update n8n credentials, and revoke old keys.

September 29, 2026 By Arslan Ahmed

Purpose

Scope

Generate and Update the Sales Genius Portal Key

Navigate to aistudio.google.com to begin the rotation process.

Saving this secret automatically syncs the updated Gemini key to the DigitalOcean Sales Genius portal environment.

Generate and Update the n8n Key

Return to Google AI Studio to generate a dedicated key for automated workflows.

Revoke Deprecated Keys

Once both destination systems have received their updated keys, revoke the old keys in Google AI Studio.

FAQ

Q: Why are two separate Gemini API keys created during this process?

A: One key is dedicated to the Sales Genius Portal and stored in Doppler, while the other is dedicated specifically to n8n automated workflows.

Q: How does saving the key in Doppler affect downstream hosting?

A: Saving the updated secret in the Doppler production (prd) environment automatically syncs the value down to the DigitalOcean Sales Genius portal.

Q: When is it safe to delete the old keys from Google AI Studio?

A: Only delete obsolete keys after both Doppler and n8n have received and saved their respective new API keys.

Glossary

Term	Definition
Google AI Studio	The web interface used to generate, configure, and manage Google Gemini API keys.
Doppler	The centralized secret management platform used to store and sync production environment variables.
prd	The Doppler production environment branch for the Sales Genius Portal project.
n8n	The workflow automation tool executing scheduled and event-based processes utilizing the Gemini integration.