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🔑 API Key Manager

$4.99

Complete API key lifecycle management: generation with configurable prefixes, HMAC-based validation, automatic expiration, scope-based permissions, key rotation with grace periods, and usage tracking. Keys are stored in a JSON file database with O(1) lookup via hash indexing.

What’s Included

✓ API Key Manager library (~200 lines)
✓ Cryptographically secure key generation with custom prefixes
✓ HMAC-SHA256 validation with timing-safe comparison
✓ Scope-based permissions (read, write, admin, custom)
✓ Key expiration and rotation with grace period
✓ CLI tool for key CRUD operations
✓ HTTP middleware for key-based authentication
✓ MIT License

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