The API Key Manager
Built for Real Developer Workflows

An API key manager is a dedicated tool for storing, organizing, and retrieving API credentials. The emphasis is on dedicated: general-purpose password managers and text files are not API key managers, even though developers use them for this job constantly.

Here's the thing about API keys: they're not website passwords. You might have 3 different OpenAI keys — one for production, one for staging, one for a side project. They expire (or should). They're scoped to specific services. And you typically need them while you're on that provider's dashboard, not when you're logging into some app.

A real API key manager solves a specific set of problems:

• Finding the right key when you're on an API dashboard without leaving the page
• Keeping multiple keys per provider organized with labels (prod, staging, personal)
• Encrypting credentials at rest so they're not sitting in a plaintext file
• Tracking expiry dates so you don't get surprised by a revoked key in production
• Keeping your keys in one place across all your projects, not scattered across dozens of .env files

None of these are things a password manager or .env file handles particularly well. That's the gap a dedicated API key manager fills.

Let's be honest about the tradeoffs. You have real options here and each one fits a different context.

The key insight: cloud secrets managers like HashiCorp Vault or AWS Secrets Manager are excellent for application-level secret management — your CI/CD pipelines, deployed services, team access control. They're the right tool when your code needs to fetch a secret at runtime.

API Locker fills a different slot: your personal developer workflow. When you're sitting at your browser, spinning up a new project, testing an API call in a dashboard, or rotating a key — that's where API Locker shines. It's the missing piece between your cloud secrets infrastructure and your day-to-day development.