TypeAPI – An OpenAPI alternative optimized for code generation
An OpenAPI alternative to describe REST APIs for type-safe code generation.
TypeAPI – An OpenAPI alternative optimized for code generation launched on April 16, 2023 with 55 votes, #1,449 of 4,853 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
TypeAPI is a developer tool that provides an alternative to OpenAPI, specifically designed to optimize code generation. Launched in April 2023, it helps developers define and work with APIs in a way that streamlines the automatic generation of code. The platform caters to software developers and teams who need efficient API specifications that translate well into generated code, making it useful for those looking to reduce manual coding work and maintain consistency across API implementations.
written from the facts on this page · September 2026
From the sources
An OpenAPI alternative to describe REST APIs for type-safe code generation. Clean syntax, human-readable, and developer-first. Explore how TypeAPI handles everything from simple endpoints to complex technical scenarios with type-safe code generation. Map values from the HTTP request to arguments, in this example we map query parameters to startIndex and count. In this example we map the HTTP request body to the payload argument. Define specific error payloads, the generated client will then also throw an exception in case of error codes. Through the dot notation at the operation key you can group your operations into logical units. Our code generator uses proven technology to generate fully…from typeapi.org
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