Summary
This covers the core authentication patterns you'll actually use: JWT tokens, OAuth 2.0, API keys, and session management. The references include working implementations in both Node.js and Python, with examples for login flows, token refresh, and middleware protection. It's opinionated about security basics like HttpOnly cookies, bcrypt for passwords, and HTTPS everywhere. The best practices section is genuinely helpful, calling out common mistakes like storing tokens in URLs or logging credentials. If you're building an API and need to lock it down properly, this gives you the patterns and code to start from rather than piecing together blog posts.
Install to Claude Code
npx -y skills add aj-geddes/useful-ai-prompts --skill api-authentication --agent claude-codeInstalls into .claude/skills of the current project.
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SKILL.md
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
