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Master API & Interface Design with AI: Your Ultimate Guide

Master API & Interface Design with AI: Your Ultimate Guide

Regular price £38.99
Regular price £38.99 Sale price
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Works withClaude CodeCursorCodexGemini CLI
Master API & Interface Design with AI: Your Ultimate Guide

Master API & Interface Design with AI: Your Ultimate Guide

Regular price £38.99
Regular price £38.99 Sale price
SAVE Sold out

Master API & Interface Design with AI: Your Ultimate Guide

This AI agent skill assists developers and teams in designing stable, well-documented APIs and interfaces. It provides support when creating REST or GraphQL endpoints, defining type contracts between modules, and establishing boundaries between frontend and backend systems.

What this skill does

  • Guides the design of stable, difficult-to-misuse interfaces.
  • Supports creating and refining REST APIs and GraphQL schemas.
  • Helps define module boundaries and contracts between development teams.
  • Assists in designing component prop interfaces.
  • Aids in establishing database schemas that dictate API shape.
  • Offers strategies for safely altering existing public interfaces.

Who it is for

  • Developers working on API creation and maintenance.
  • Software architects defining system and module boundaries.
  • Teams employing AI coding agents such as Claude Code, Cursor, and Codex.
  • Project managers overseeing interface design projects.

Use cases

  • Designing API endpoints for a new application.
  • Establishing type contracts between frontend and backend teams.
  • Developing stable public interfaces for external developer communities.
  • Refining existing APIs while minimizing user impact, according to Hyrum's Law.
  • Educating development teams on interface design standards and best practices.

Technical details

  • Integration with AI applications like agent-harness, Claude Code, Cursor, and Codex.
  • Focus on stable API and interface design with an emphasis on avoiding de facto contracts from user dependency.

Source & Licence

This package is built on open-source work published by marcmarti9 (marcmarti9/agentit) and distributed under Apache-2.0. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted under the Apache License 2.0, which also includes an express patent grant. Attribution and any NOTICE file must be 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.

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Dropped it into Claude Code and my LCP went from 4.1s to 1.9s in an afternoon. It explains every fix it suggests, so I actually learned something too.

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Works with both Cursor and Claude Code exactly as advertised. Setup took less than five minutes with the included README.

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Instant delivery, clean files, clear docs. This is how digital products should be sold. Already bought three more skills.

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