A streamlined developer tool that instantly converts JSON objects and API payloads into clean, production-ready TypeScript interfaces.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install type-gen
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install type-gen using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is JSON to TypeScript?
JSON to TypeScript is a developer-centric Openclaw Skills utility designed to eliminate the tedious process of manual type definition. It allows developers to feed raw JSON data—whether from local files, live API endpoints, or piped terminal output—into the generator to receive perfectly structured TypeScript interfaces or types.
By automating the mapping of complex data structures, this tool ensures type safety and reduces human error in frontend and backend TypeScript projects. It is an essential addition to any workflow involving Openclaw Skills for rapid prototyping and robust application scaling.
JSON to TypeScript Use Cases
- Creating TypeScript definitions for third-party API responses in seconds.
- Converting large legacy JSON configuration files into type-safe objects.
- Standardizing data models across full-stack applications by generating types from backend payloads.
- Rapidly prototyping frontend components that consume dynamic external data.
How JSON to TypeScript Works
- The user provides a source of JSON data via a file path, a live URL, or a piped command.
- The utility parses the JSON structure, identifying keys, data types, and nesting levels.
- It recursively generates separate interfaces for nested objects to ensure the code remains modular and readable.
- Array types are analyzed to determine if they are uniform or require union type definitions.
- The tool applies requested transformations, such as making properties optional or using types instead of interfaces.
- The final TypeScript code is outputted to the terminal or saved to a designated .ts file.
JSON to TypeScript Setup
To integrate this tool into your development environment, install the package globally using npm:
npm install -g @lxgicstudios/json-to-ts
You can also run it directly using npx for immediate conversions:
npx @lxgicstudios/json-to-ts data.json -n RootName
JSON to TypeScript Data Schema & Taxonomy
The skill organizes generated data according to standard TypeScript syntax and follows a logical extraction pattern:
| Component | Logic Applied |
|---|---|
| Root Level | Defined as 'Root' by default or a custom name via the -n flag. |
| Nested Objects | Automatically extracted into standalone interfaces for better organization. |
| Arrays | Typed based on member types; empty arrays default to unknown[]. |
| Mixed Arrays | Converted into Union Types (e.g., (string |
| Optionality | Can be globally applied to all properties using the --optional flag. |
JSON to TypeScript Advanced Features
- Direct URL support to fetch and type live API responses without downloading files first.
- Pipe compatibility (stdin) to work seamlessly with curl or other CLI utilities.
- Flexible output options allowing users to choose between 'interface' and 'type' keywords.
- Customizable root interface naming to match project-specific naming conventions.
- Automatic 'export' keyword management for easy integration into existing module systems.
SKILL.md
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