api-authentication

Implement JWT, OAuth 2.0, API key, and session-based authentication patterns.

81|22|Updated Nov 23, 2025
One-click install
npx skills add https://github.com/applied-artificial-intelligence/claude-code-toolkit --skill api-authentication
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: api-authentication
Source: https://github.com/applied-artificial-intelligence/claude-code-toolkit/tree/main/skills/general-dev/api-authentication
Command: npx skills add https://github.com/applied-artificial-intelligence/claude-code-toolkit --skill api-authentication

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides secure, scalable patterns for API authentication, helping developers implement and reason about token-based access across services.

Core Features & Use Cases

  • JWT-based authentication for stateless APIs
  • OAuth 2.0 flows for delegated access
  • API keys for service-to-service access
  • Sessions and token refresh strategies
  • Security best practices and vulnerability mitigation

Quick Start

Example: Enable JWT-based authentication with a short-lived access token and a refresh token workflow.

Frequently Asked Questions about api-authentication

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I implement JWT authentication in a Python API?

JWT authentication in a Python API involves generating short-lived access tokens and establishing a refresh token workflow. This skill provides patterns for token generation and validation using libraries like PyJWT and FastAPI.

What is the best way to set up OAuth 2.0 flows for delegated API access?

OAuth 2.0 flows for delegated API access are best set up using dedicated libraries like Authlib. This skill covers the necessary patterns to manage token generation and secure authorization across modern web services.

When should I use API keys instead of session-based authentication?

API keys are ideal for service-to-service access, while session-based methods suit user-facing web workflows. This skill details both approaches, helping you choose the right strategy for your specific API endpoint protection needs.

Can I use this skill to implement token refresh strategies with FastAPI?

Yes, you can implement token refresh strategies with FastAPI. The skill assumes a Python environment with standard libraries and provides guidance on managing short-lived access tokens alongside refresh workflows.

What security best practices should I follow for API endpoint protection?

API endpoint protection requires following security best practices like threat mitigation and proper token validation. This skill offers guidance on vulnerability mitigation across typical API workflows to ensure robust access control.

Why does my JWT validation fail and how do I mitigate token-based threats?

JWT validation failures and token-based threats are mitigated by adhering to secure authentication patterns. This skill provides threat mitigation guidance and covers validation strategies to prevent unauthorized API access.