signalHacker News Show HN2026-09-19
Show HN: Typesafe Java SDK (Unofficial)
An unofficial community Java SDK targets TypeSafe AI's System One API (POST /v1/systemone) with Java 21+, Maven, java.net.http.HttpClient, and Jackson as the only runtime dependency, offering sync and async (CompletableFuture) calls, automatic retries with exponential backoff plus jitter on 429/5xx, and sealed Question/Answer hierarchies with fluent builders for noul, choice, and score question types that degrade unknown answers to UnknownAnswer. Client-side validation runs before network calls, the API key is sent only via the Authorization header, and the default model ("jev-latest") can be overridden per request or via TYPESAFE_API_KEY/TYPESAFE_BASE_URL environment variables.
- why now
- New TypeSafe Java SDK launched.
- topic
- AI Tools & Agent Workflows
- source
- Hacker News Show HN
#Java SDK#TypeSafe AI
score
score 8 out of 10. 0-10: how dense the facts are, multiplied by how much you can do with them after reading. 8+ means the topic's evidence bar is met: benchmarks and availability for a new model, amount and investors for a funding round, revenue figures for a solo-money story. Below 5 an item does not enter the digest. A press release scores 3 or less, a reprint loses 2, anything older than 14 days loses 1, a headline that misleads loses 3.
read the source