skills.rest
cenjie
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api-security-hardening

Secure REST APIs with authentication, rate limiting, CORS, and input validation.

Updated May 17, 2026
Search Tags:#authentication#fastapi#input-validation#api-security#rate-limiting#express#cors
One-click install
npx skills add https://github.com/cenjie/skills --skill api-security-hardening
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: api-security-hardening
Source: https://github.com/cenjie/skills/tree/main/skills/api-security-hardening
Command: npx skills add https://github.com/cenjie/skills --skill api-security-hardening

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

Protect RESTful APIs from common web threats by providing practical, opinionated guidance and implementations for authentication, rate limiting, CORS, input validation, security headers, and monitoring so teams can reduce attack surface and prevent abuse.

Core Features & Use Cases

  • Authentication & Authorization: JWT and API key examples with role-based access controls for protected endpoints.
  • Traffic Controls: Rate limiting and gateway-level limits to mitigate abuse and DDoS vectors.
  • Input & Payload Safety: Input validation, NoSQL injection sanitization, XSS prevention, and parameter pollution protection.
  • Deployment Guidance: API gateway/nginx hardening and environment-specific recommendations for Node.js/Express and Python/FastAPI.
  • Use Case: Harden a public API for production by adding security middleware, strict CORS policies, request size limits, and centralized security logging.

Quick Start

Use the api-security-hardening skill to add authentication, rate limiting, input validation, security headers, and logging to your API.

Frequently Asked Questions about api-security-hardening

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

FAQPage Schema
How do I harden FastAPI against common web security threats?▼

To harden FastAPI against web threats, implement strict CORS policies, input validation, rate limiting, and JWT authentication to reduce attack surface and prevent abuse in production deployments.

What is the best way to add rate limiting and authentication to an Express API?▼

Adding rate limiting and authentication to an Express API involves configuring security middleware with JWT, API keys, and role-based access controls to prevent abuse and protect endpoints from unauthorized traffic.

How do I prevent NoSQL injection and XSS in REST API payloads?▼

Preventing NoSQL injection and XSS in REST API payloads requires strict input validation and payload sanitization to ensure parameter pollution protection and secure endpoints against malicious data inputs.

Can I use this approach to secure an API gateway and nginx deployment?▼

Yes, you can secure an API gateway and nginx deployment using environment-specific hardening recommendations to apply gateway-level limits, request size limits, and security headers to mitigate DDoS vectors.

Does this API security hardening support both Node.js and Python environments?▼

Yes, this API security hardening supports both Node.js and Python environments by providing practical implementations for Express and FastAPI, including centralized security logging and configurable thresholds.

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