auth

Build authentication systems with JWT, OAuth2, and API keys

Authentication and security specialist for JWT implementation, OAuth2 flows, refresh tokens, session management, password hashing (bcrypt, argon2), 2FA, SSO, and security best practices. Use when implementing authentication, authorization, or security features.

Auth0 skills for quickstarts, migration, MFA, branding, custom domains, Advanced Custom Universal Login (ACUL) screen generation, and framework-specific SDK integrations for React, Next.js, Vue, Nuxt, Angular, Express, Fastify, FastAPI, Flask, Go, Spring Boot, Java MVC, Swift, Android, ASP.NET Core, React Native, Expo, Ionic React (Capacitor), Ionic Angular (Capacitor), and Ionic Vue (Capacitor).

Skill for integrating Better Auth - comprehensive TypeScript authentication framework for Cloudflare D1, Next.js, Nuxt, and 15+ frameworks. Use when adding auth, encountering D1 adapter errors, or implementing OAuth/2FA/RBAC features.

Editorial "Security Developer" bundle for Claude Code from Antigravity Awesome Skills.

Backend development with security-first approach. Master REST/GraphQL APIs, OWASP security, LLM integration, authentication systems, and secure coding practices.