# REST API Authentication Methods Clearly Explained

DevFeed: [REST API Authentication Methods Clearly Explained](<https://devfeed.tech/articles/rest-api-authentication-methods-clearly-explained-18037.md>)

Original publisher: [Read original article](<https://blog.levelupcoding.com/p/rest-api-authentication-methods>)

Author: Nikki Siapno

Published: 2026-08-05T18:25:08Z

Content type: tutorial

Language: en

Sources: [Level Up Coding System Design Newsletter](<https://devfeed.tech/sources/level-up-coding-system-design-newsletter.md>)

Topics: [Authentication](<https://devfeed.tech/topics/authentication.md>), [REST API](<https://devfeed.tech/topics/rest-api.md>), [API keys](<https://devfeed.tech/topics/api-keys.md>), [Authorization](<https://devfeed.tech/topics/authorization.md>), [Security](<https://devfeed.tech/topics/security.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [api-keys](<https://devfeed.tech/tags/api-keys.md>), [authentication](<https://devfeed.tech/tags/authentication.md>), [authorization](<https://devfeed.tech/tags/authorization.md>), [jwt](<https://devfeed.tech/tags/jwt.md>), [private-key](<https://devfeed.tech/tags/private-key.md>), [rest](<https://devfeed.tech/tags/rest.md>), [security](<https://devfeed.tech/tags/security.md>)

## AI overview

This tutorial explains REST API authentication methods, including API keys, bearer tokens, JWTs, HMAC secrets, and mutual TLS. It distinguishes authentication from authorization and discusses operational concerns such as credential rotation, revocation, auditing, rate limiting, and responding to leaked credentials.

## Source excerpt

8 API authentication methods every developer should know.