Testament of Steel AI Tools

Create Your Google Gemini API Key.

Sonic Canvas and Sonic Critic use Google Gemini for creative assistance and audio analysis. Follow these steps to create your own key and connect it to the tool you want to use.

Open Google AI Studio

Sign in to Google AI Studio

Open the Google AI Studio API Keys page and sign in with the Google account you want to use.

Create or choose a project

New users may already have a project and key. Otherwise, select Create API key, then create a new project or choose an existing Google Cloud project.

Set up billing if required

Some Sonic Canvas AI features can require a paid Gemini project. If Google shows Set up billing, follow its prompts to connect a billing account and review your spending controls.

Copy the API key

On the API Keys page, copy the newly created key. Treat it like a password and do not post it publicly, send it in chat, or place it in website source code.

Add it to an AI tool

Return to Sonic Canvas or Sonic Critic, use the Google API key control, and paste your key when prompted. The key is saved only in that browser and is shared between both tools on testamentofsteel.com.

Test an AI feature

Try AI background generation, song analysis, or lyric assistance. If you see a quota or billing message, review the project status and usage in Google AI Studio.

Need the official documentation? Review Google’s Gemini API key guide. Google controls the key creation screens, billing terms, quotas, and availability, so wording in AI Studio may change over time.