1/ Introducing CUA-S1: a family of System One Models, small, specialized, and built for computer use. Today we're open-sourcing CUA-S1-FORMS, the first in the family: github.com/trycua/cua
TypeSafe Rust SDK
An independent Rust client for the System One API targeting parity with the official Python and JavaScript SDKs at 0.6.0, with async and blocking clients, model discovery, and configurable retries.
- Category
- Repos & SDKs
- Published by
- Community
- Author
- gilljon
- Added
- 2026-09-22
Tagscommunityrustsdk
Highlights
- Targets parity with the official Python and JavaScript SDKs at version 0.6.0, with parity notes listing revisions and deliberate differences.
- Typed Noul, Choice, and Score questions and answers, model discovery, cancellation, and complete HTTP response metadata.
- Default retries cover 408, 429, 5xx, connection errors, and timeouts, with 500 ms exponential backoff capped at 5 s and up to 25% jitter.
- A 30-second retry budget follows Python while the 60-second retry-header cap follows JavaScript.
- Rust 1.88 or newer with Rustls by default; the synchronous client is behind the blocking feature.
Quickstart
rust
use serde_json::json;
use typesafe_ai_rs::{Client, Noul, Question, SystemOneRequest};
let client = Client::new()?;
let response = client
.system_one(SystemOneRequest::new(
json!({"document": "I was charged twice. Please fix this ASAP."}),
[("billing", Question::from(Noul::new("Is this about billing?")))],
))
.await?;
println!("billing: {}", response.nouls()["billing"].noul);Watch out
MIT-licensed but independently maintained and not an official TypeSafe SDK; needs Rust 1.88+ and TYPESAFE_API_KEY, and its tests use local HTTP servers without a key.
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we are officially out of stealth! join the frontier and get access to Jev on our website (link on profile)