sessionStorage only — sent directly to the provider's API from your machine. No backend, no logging. Clears when you close the tab./v1/chat/completions endpoint.generateContent REST endpoint.api.x.ai.SunoForge uses AI to engineer prompts for Suno — the lyrics generator, style tag builder, and track refiner each use a tailored system prompt to produce Suno-ready output.
Your API key is stored in sessionStorage only — it is never sent to any server other than the AI provider you select. This site has no backend.
You need an API key from your chosen provider: Anthropic, OpenAI, Google AI Studio, or xAI. Each provider bills you directly — costs are typically a few cents per generation.