API Key
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A unique identifier used to authenticate API requests, typically passed as a header or query parameter, simpler than OAuth but less secure for user-facing applications.
Related Protocols
Mentioned in Guides
How to Implement and Handle Rate Limiting (429)
API Design & Best Practices
Debugging 429 Too Many Requests
Debugging & Troubleshooting
401 Unauthorized vs 403 Forbidden: When to Use Each
Security & Authentication
API Keys vs OAuth vs JWT: Choosing the Right Auth Method
Security & Authentication
API Authentication Patterns: Bearer Tokens, API Keys, and Session Cookies
Security & Authentication
Rate Limiting at the Edge: WAF, CDN, and API Gateway Strategies
Production Infrastructure
API Gateway Patterns: Architecture and Use Cases
API Gateway Patterns
Authentication at the API Gateway: JWT Validation, OAuth, and API Keys
API Gateway Patterns
API Gateway Logging and Analytics
API Gateway Patterns