ts-contract

An opinionated schema-first TypeScript contract library for defining type-safe HTTP and WebSocket APIs.

Small core. Zero integrations.
Schema-first.
Excellent TypeScript inference.
Composable primitives.
Integrate it your way.
Supports @standard-schema/spec

Minimal by design. No framework integrations.

Every integration adds surface area, complexity, and long-term maintenance burden. ts-contract stays focused on a small, durable core with first-class TypeScript inference and composable primitives that make it easy to integrate with any stack.

Contribute

We welcome new ideas and contributions! Whether you want to report a bug, suggest a feature, or submit a pull request, your input helps make ts-contract better for everyone.

Contribute on GitHub →

Support the Project

If you find ts-contract useful, consider sponsoring the project on GitHub!

View on GitHub →