API Secure is the fastest way to share API keys with AI agents — no servers, no accounts, no tracking. Your key is encrypted with AES-256-GCM directly in your browser and never touches a server. The AI agent decrypts locally, completing a zero-knowledge credential handoff in seconds. Purpose-built for developers working with AI agents, it eliminates the friction of password managers and CLI tools for one-off key sharing. Open source, fully auditable, and free forever.