Type-Safe API Client with TypeScript Autocomplete for API Requests
RecipeUI (Show HN) is an open-source Postman alternative that uses TypeScript for static typing and autocomplete on API requests. Built because configuring HTTP requests in Postman requires memorizing parameter names and types. A commenter suggested cast.ts for type validation. Opportunity overlaps with Yaak and Bruno in the git-friendly API client space.
Problem Statement
Developers testing APIs in Postman type JSON payloads manually without autocomplete or validation. Typos in field names cause 400 errors that waste debugging time. TypeScript-first API clients can eliminate this by leveraging OpenAPI specs or type definitions.
The Idea
An API client that auto-completes request parameters, headers, and body fields using TypeScript type definitions, reducing errors when testing unfamiliar APIs.
Why Now
TypeScript adoption passed 80% for new JS projects. Developers expect type safety everywhere. Postman and Insomnia provide no type checking on request payloads, leading to silent errors when testing APIs.
Target User
TypeScript developers testing REST and GraphQL APIs
Target Market
API development and testing tools
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