Master API Endpoint Rules for Secure Claude AI Skills

Master API Endpoint Rules for Secure Claude AI Skills

This AI agent skill focuses on ensuring the security of HTTP API endpoints when developing Claude AI Skills. It supports developers in defining robust API endpoint rules, particularly for routes, request and response structures, and status codes, crucially when modifying anything that reads or manipulates user data.

What this skill does

• Ensures that API endpoints are accessed only by authorized users, avoiding unauthorized access or data manipulation exploits such as Insecure Direct Object References (IDOR).
• Mandates proper validation of input data at the API edge to prevent data corruption, ensuring that incorrect input does not trigger server errors.
• Advises following the 'data-integrity' skill for transactions that involve financial operations, safeguarding aspects such as idempotency and transaction locks.

Who it is for

This skill is designed for developers and development teams utilizing AI coding agents such as Claude Code, Cursor, and Codex who require secure and accurate API interactions with their software components.

Use cases

• Application in APIs handling financial transactions or change in state of account balances, where secure access and error-free data integrity are critical.
• Management of API routes that involve sensitive user information or interaction with external service providers such as payment gateways.
• Integration within existing projects to enhance endpoint security during deployment of new features or updates.

Technical details

• Uses TypeScript with 'pg' for database querying and management.
• Applies to any technology stack for API design and development, demonstrating flexible integration abilities.
• Promotes best practices through precise control over route access, emphasizing user authorization and role-based access checks.

For authorized security testing, defensive research and educational use only.

This provides general workflow assistance only and is not legal, tax, accounting or financial advice.

Source & Licence

This package is built on open-source work published by globalmpc (globalmpc/backendskills) and distributed under MIT. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

• Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
• Format: ZIP archive containing the skill files, documentation and the original licence.
• Support: support@mcpcart.com — we aim to reply within 2 business days.
• Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.