Swaggie

Stop writing API-fetching code by hand. Point Swaggie at your OpenAPI 3 spec and get a fully typed, ready-to-use client in seconds.

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Playground

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Fully Typed Output

Every generated method has precise TypeScript types for parameters, request bodies, and responses. Catch breaking API changes at compile time, not in production.

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Multiple HTTP Clients

Ships with templates for fetch, axios, xior, SWR + axios, TanStack Query + xior, Angular 1, and Angular 2+. Switch without rewriting your app logic.

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Zero Runtime Overhead

Swaggie is a dev-only code generator — nothing is added to your production bundle. The output is a plain TypeScript file with no swaggie dependency at runtime.

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Handles Real-world Specs

Full support for allOf, oneOf, anyOf, $ref (including external), nullable types, enums, multipart uploads, binary responses, and JSDoc from spec descriptions.

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Tree-shakeable Output

Each API group is exported as its own named object, so your bundler can dead-code-eliminate anything you don't use.

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Custom Templates

Don't see your HTTP client? Bring your own EJS template directory and Swaggie will use it instead. Full access to parsed operation and schema data.

Want to see Swaggie in action before committing to an install?
Try the interactive Playground and generate a typed client from any OpenAPI spec — right in your browser.