How to Get Your API Key

Subtle uses your own AI API key. Pick a provider and follow the steps below. Most take under 2 minutes to set up.

Step-by-step guide to get API keys from OpenAI, Anthropic Claude, Google Gemini, OpenRouter, and Azure OpenAI. Connect any provider to Subtle in minutes.

Key Highlights

  • Step-by-step guides for all 5 supported providers
  • OpenAI, Anthropic Claude, Google Gemini, OpenRouter, Azure OpenAI
  • Model recommendations and cost estimates for each
  • Deep links from the Subtle app open directly to your provider

About Subtle

Subtle is an AI overlay for professionals who need real-time assistance during high-stakes moments — job interviews, sales calls, meetings, coding sessions, and presentations. The overlay is visible only to you and cannot be captured by any screen sharing or recording software. Subtle uses a BYOK (Bring Your Own Keys) model: you connect your own AI provider accounts, so your data never touches our servers. Available as a one-time purchase for macOS.

Canonical URL: https://gosubtle.app/setup/api-keys