The Ruby SDK generator is now generally available, with modern type system support and a minimal-dependency design that feels right at home in the Ruby ecosystem.

• ‍Sorbet: Each SDK includes comprehensive RBI annotations, including enums and aliases, without a dependency on sorbet-runtime.‍

• RBS: Each SDK also includes Ruby 3’s RBS type annotations, compatible with the steep typechecker.‍

• YARD: Full YARD docs support for methods and types, with navigable links between related objects, published to Gemdocs automatically.‍

• Tooling support: Great auto-completion for ecosystem tool chains, including generics for pagination & streaming for all supported language services.‍

• File uploads & downloads: Full lazy upload and download support with conveniences like Pathname support.‍

• Type conversions: Automatic conversions to Time, Integer and so on as appropriate.‍

• Pattern matching: All data containers support Ruby 3 pattern matching.‍

• Minimal dependencies: The SDKs use stdlib net/http for requests, relying only on connection_pool.‍

• Introspection: Pretty printing is supported for all internal types, for both classes and instances.‍

• Streaming: Support for SSE & JSON-L streams as ruby Enumerators, allowing for convenient .map, .filter, and so on, with automatic closing during GC.‍

• Advanced use cases: Raw and undocumented request support.

We plan to add support for middleware soon, along with other conveniences; if there’s more you’d like to see, please share: [email protected].

The SDK Studio supports Ruby in the SDK preview pane.

Sorbet type definitions are stable with improved autocomplete for models.

Stainless Ruby SDKs are among the first to support type annotations without relying on sorbet-runtime, giving you static analysis without the extra overhead.

It’s also the first to offer Sorbet, RBS, and YARD docs with full generics.

You can now preview Ruby docs in Stainless Studio.