# JSON to TypeScript — yeezhan.com > One-time pay-per-task emergency tool to make your file ready for submission. > No credits, no balance. One payment unlocks one task result, valid for 24 hours. Tool domain: https://json-to-ts.yeezhan.com Skill definition: https://json-to-ts.yeezhan.com/skill/SKILL.md API documentation: https://json-to-ts.yeezhan.com/api/docs ## What this tool does Generate TypeScript interfaces from any JSON — nested objects recursed, array element types merged. ## Typical user problems - API responses ship as sample JSON and nobody writes the types. Generate accurate interfaces — nested objects, merged array unions and all. ## Parameters ## Pricing - Watermarked preview: free, no login required - Final clean output: $0.99 one-time per task - Require login (email/phone OTP) to complete payment - Result available for download 24 hours after payment ## Limitations - Max input 20 MB