Verified:GitHub

api-contract-validator

Validates API responses against schemas and reports mismatches.

Updated Aug 23, 2026

Search Tags:#developer tools #quality assurance #CI/CD #frontend-backend #contract testing #schema validation #API testing

One-click install

npx skills add https://github.com/VatoCodes/Bet-That_Proof-of-Concept --skill api-contract-validator-vatocodes

Or copy as Structured Prompt for Agent▼

Please help me install this Agent Skill.
Skill: api-contract-validator
Source: https://github.com/VatoCodes/Bet-That_Proof-of-Concept/tree/main/.claude/skills/api-contract-validator
Command: npx skills add https://github.com/VatoCodes/Bet-That_Proof-of-Concept --skill api-contract-validator-vatocodes

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires requests, and includes scripts (resource) components.

What problem does it solve?

This Skill prevents silent failures in your application by automatically validating that backend API responses always match frontend expectations. It catches breaking changes and inconsistencies early, saving debugging time and ensuring a smooth user experience.

Core Features & Use Cases

Automated Contract Validation: Compares live API responses against defined schemas, detecting missing fields, type mismatches, and structural changes.
Frontend Usage Scanning: Automatically identifies all API calls and expected fields within your frontend code (HTML/JS), providing a clear usage map.
Schema Generation & Reporting: Auto-generates API contracts from live responses and produces detailed HTML validation reports for easy review.
Use Case: Integrate this Skill into your CI/CD pipeline to automatically validate API contracts on every code push, ensuring that backend changes don't inadvertently break the frontend.

Quick Start

Validate all API endpoints for the current application.