Openapi To Typescript

What it does

This skill converts OpenAPI specification files into TypeScript interfaces and types. It automates the generation of type-safe code from API documentation, ensuring consistency between your API contract and your application logic.

When to use it

• You have an existing OpenAPI (Swagger) definition and need to generate client-side TypeScript types for a frontend or SDK.
• You want to enforce strict typing in your backend services by deriving types directly from your API schema.
• You are refactoring a project and need to update all TypeScript interfaces whenever the underlying OpenAPI spec changes.

Key capabilities

• Parses standard OpenAPI specification formats (YAML or JSON).
• Generates corresponding TypeScript interfaces for request bodies, response models, and query parameters.
• Produces type-safe code that aligns exactly with the defined API contract.

Example prompts

• "Convert this OpenAPI YAML file into a set of TypeScript interfaces for my React application."
• "Generate TypeScript types from this JSON OpenAPI spec to use in my Node.js backend."
• "Extract all data models from this Swagger definition and output them as valid TypeScript code."

Tips & gotchas

Ensure your OpenAPI specification is valid and complete before running the conversion, as missing schema details may result in generic or incorrect types. This tool generates static type definitions; it does not create runtime client libraries or handle authentication logic automatically.