api-spec-analyzer

Generate TypeScript interfaces and schemas from OpenAPI specifications.

Updated Mar 3, 2026
One-click install
npx skills add https://github.com/jacexh/skills --skill api-spec-analyzer-jacexh
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: api-spec-analyzer
Source: https://github.com/jacexh/skills/tree/main/skills/api-spec-analyzer
Command: npx skills add https://github.com/jacexh/skills --skill api-spec-analyzer-jacexh

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

OpenAPI specifications are powerful but translating them into precise TypeScript types and practical integration guidance is time-consuming. This Skill automates extracting endpoints, request/response schemas, and authentication details to accelerate frontend-backend alignment.

Core Features & Use Cases

  • OpenAPI to TypeScript: Generate exact interfaces for endpoints, request bodies, responses, and schemas with automatic $ref resolution.
  • Endpoint Discovery & Validation: Extract method, path, auth requirements, and input/output validation rules to ensure correct API usage.
  • Implementation Guidance & Examples: Provide API service templates, type-safe clients, and testing patterns to speed feature delivery.

Quick Start

Paste your OpenAPI specification to generate TypeScript interfaces, endpoint types, and implementation guidance.

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 interfaces from an OpenAPI spec?

To generate TypeScript interfaces from an OpenAPI spec, paste the specification into the analyzer. It automatically resolves $ref pointers and extracts exact request/response schemas to produce ready-to-use typings.

Can I resolve $ref references when parsing an OpenAPI document?

Yes, this analyzer fully resolves $ref references when parsing OpenAPI documents. It automatically follows internal pointers to map complete endpoint request bodies, response shapes, and authentication details accurately.

What is the best way to extract endpoint types and auth details for backend integration?

The best way to extract endpoint types and auth details is analyzing the OpenAPI specification. This process maps HTTP methods, paths, and security requirements into strict TypeScript definitions for integration.

Does OpenAPI to TypeScript generation include API service templates and testing patterns?

Yes, OpenAPI to TypeScript generation includes API service templates and testing patterns. It provides implementation guidance and type-safe client examples to accelerate frontend-backend alignment and feature delivery.

Why should I use an OpenAPI analyzer instead of manually typing API responses in TypeScript?

You should use an OpenAPI analyzer instead of manually typing API responses to prevent data shape mismatches. It automates schema extraction, ensuring strict TypeScript typings match the backend specification exactly.