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Typesafe Jev Api
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- Updated Oct 2026
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CommunityJev Repos & SDKs
Jev Dart
Pure Dart client for the TypeSafe System One API, usable from a CLI, a server or a Flutter app. The request path avoids extra copies and reuses HTTP/2 connections, and no comparative benchmarks are published.
- Stars
- 2
- Language
- Dart
- License
- MIT
- Reading time
- 2 min
- Published by
- Community
- Author
- solido
- Last verified
- Oct 2026
Used inJev for Software & DevTools
- Platforms
- API
- Capabilities
- Open sourceRequires API key
Highlights
- Pure Dart package with no Flutter dependency; works from a CLI, a server or a Flutter app via a plain package import.
- Requests encode straight to UTF-8 bytes once and reuse them across retries; VM responses parse from bytes with Crimson.
- VM, mobile and desktop default to a pooled HTTP/2 client to api.typesafe.ai; on the web it delegates to the browser transport via package:http.
- Defaults: model jev-latest, base URL https://api.typesafe.ai, 10s timeout per attempt, 2 retries on 408/429/5xx; constructor values beat env vars.
- The README states the package publishes no comparative benchmark numbers; total request time still depends on the network and the API response.
Watch out
Copy reviewed against the truncated repo README on 2026-10-15; the excerpt stops inside the example description, so the three live example cases are only known from the section heading. GitHub metadata lists MIT and 2 stars.
Questions about this entry
Short answers drawn from the linked project or page.
A pure Dart client for TypeSafe AI's System One API, covering Jev and compatible endpoints. It works from a CLI, a server or a Flutter app without any Flutter plugin wrapper.
Add jev_dart to your pubspec dependencies, set TYPESAFE_API_KEY or JEV_API_KEY (the tests and example also load .env), and construct a TypeSafeClient. A key passed to the constructor overrides the environment.
Yes. The README says to import this package directly and not to add a Flutter plugin wrapper unless you need widgets or native channels; the package has no Flutter dependency.
TypeSafeClient().systemOne takes a state map and typed questions, such as a choice question over billing, technical and other. The result exposes result.choice('category').choice, and you close the client when done.
Defaults are a 10-second timeout per attempt and 2 retries on 408, 429 and 5xx responses. The HTTP/2 transport ignores cancellation signals, so a request already sent may continue after the SDK stops waiting.
No. The README describes design choices such as connection reuse, encoding straight to bytes and parsing response bytes, but states the package does not publish comparative benchmark numbers; latency still depends on the network and the API.
On the web, package:http delegates to the browser's transport because http2 requires dart:io, and the package uses Dart's standard JSON encoder and decoder instead of Crimson, which the README calls not JavaScript-safe.
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