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Full stack typesafe API-first development for REST.

OpenAPI Stack is a collection of open source libraries and tools for full stack Typescript development inspired by modern alternatives like GraphQL and tRPC. Compare

Backend

Build, Validate, Route, Authenticate, and Mock your backend using the openapi-backend library.

Client

Easily consume your OpenAPI specification using the typesafe openapi-client-axios library.

CLI

Generate types, design and test your API using the openapicmd command line tool.

Interactive Example

This is a minimal full-stack React application using openapi-stack and Next.js.

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