skills.rest
MadAppGang
MadAppGangOFFICIAL
Explore all skills by this author →
WebsiteGitHub

api-spec-analyzer

Analyze OpenAPI specifications to generate TypeScript interfaces and API service patterns.

278|29|Updated Nov 4, 2025
Search Tags:#debugging#frontend#API integration#TypeScript#OpenAPI#API documentation#Apidog#data types
One-click install
npx skills add https://github.com/MadAppGang/claude-code --skill api-spec-analyzer
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: api-spec-analyzer
Source: https://github.com/MadAppGang/claude-code/tree/main/plugins/frontend/skills/api-spec-analyzer
Command: npx skills add https://github.com/MadAppGang/claude-code --skill api-spec-analyzer

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Integrating with APIs, understanding their structure, and debugging errors often involves sifting through documentation or guessing data types. This Skill analyzes OpenAPI specifications to provide precise API documentation and implementation guidance.

Core Features & Use Cases

  • OpenAPI Analysis: Extract detailed information on HTTP methods, paths, authentication, request/response schemas, and data types.
  • TypeScript Interface Generation: Create accurate TypeScript interfaces directly from the API spec, ensuring type safety.
  • Implementation Guidance: Provide code examples for API service functions, TanStack Query hooks, and query key patterns.
  • Error Debugging: Quickly identify causes of API errors (400, 401, 404) by comparing implementation against the spec.
  • Use Case: When implementing a new user creation feature, use this Skill to get the exact request body schema, generate TypeScript types, and receive a ready-to-use TanStack Query mutation hook.

Quick Start

Use the api-spec-analyzer skill to get the OpenAPI specification for the /api/users endpoint.

Frequently Asked Questions about api-spec-analyzer

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

FAQPage Schema
How do I generate TypeScript types from an OpenAPI specification?▼

OpenAPI specifications define your API contract. This Skill analyzes the spec to automatically generate TypeScript interfaces matching request and response schemas, ensuring type safety and eliminating manual type definition errors.

Can I use this to debug API integration errors like 400 or 401 responses?▼

Yes. By comparing your implementation against the OpenAPI spec, you can identify mismatches in request parameters, authentication headers, or data types that cause 400, 401, or 404 errors, then correct them quickly.

What information does the Skill extract from an API specification?▼

The Skill captures HTTP methods, endpoint paths, authentication requirements, request parameters, response schemas, and data types, then outputs ready-to-use TypeScript interfaces and API service patterns.

How do I transition from mock APIs to real backend endpoints?▼

Analyze your real API's OpenAPI spec to generate accurate TypeScript types and service functions, then swap mock implementations with real API calls using the generated patterns and validated schemas.

Does this work with TanStack Query for frontend API calls?▼

Yes. The Skill provides implementation guidance including TanStack Query mutation hooks and query key patterns, so you can integrate generated types directly into your data-fetching layer.

What if my API spec is incomplete or missing data type details?▼

The Skill works with the OpenAPI specification you provide. If the spec lacks detail on schemas or data types, filling those gaps in the spec first ensures the generated interfaces and guidance are accurate.

Related Skills

Explore More Software Engineering Skills→
MadAppGangMadAppGang
7

bunjs-apidog

Generate and synchronize OpenAPI 3.0 specifications for Bun.js APIs with Apidog.

Official
Intermediate
WesleySmitsWesleySmits
6

generating-typescript-types-from-apis

Generate TypeScript interfaces from API responses and OpenAPI schemas.

Community
Intermediate
MadAppGangMadAppGang
278

api-integration

Generate TypeScript types, axios clients, and TanStack Query hooks from OpenAPI specs.

Official
Intermediate
erichowenserichowens
181

api-architect

Design and validate REST, GraphQL, and gRPC API contracts and architectures.

Community
Advanced