TspecType-driven API Documentation

Auto-generating REST API document based on TypeScript types

Type-driven OpenAPI

Automatically parses your TypeScript types and generates up-to-date OpenAPI specification.

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Tspec is designed to be zero-configuration. You can start using it right away without any setup.

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Tspec integrates Swagger UI to provide a beautiful and interactive API documentation.

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Works with both CommonJS and ESM. No ts-node, no babel, no swc required. Pure TypeScript.

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Seamlessly integrate with Express.js using Tspec type definitions.

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Generate OpenAPI spec directly from NestJS controllers with --nestjs flag.

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