Production-ready SaaS starter

Build your SaaS faster.

A production-ready Topcoat template with authentication, billing, and everything you need to ship.

Authentication

Passkeys and email OTP out of the box, FerrisKey OIDC when you need SSO.

Fullstack Rust

Topcoat server rendering with typed browser expressions, no WASM bundle.

Billing Ready

Polar integration for subscriptions and checkout.