APIs power everything around us—from your favorite apps to online banking. But how do APIs know who’s knocking on their door? The answer lies in API authentication methods.
In this short, I’ll explain all the major authentication methods, from the simplest API keys to enterprise-grade security like Mutual TLS and SAML.
You’ll also learn:
- The difference between authentication and authorization
- When to use API keys, basic auth, bearer tokens, or JWTs
- Why OAuth 2.0 dominates modern integrations
- How HMAC, mTLS, and SAML ensure enterprise-level security
- Legacy methods like Digest Auth & Client Certificates you might still encounter
Whether you’re a beginner exploring API basics or a developer working on secure integrations, this video will give you a clear, practical overview.
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