How do I add it without a package registry?

Point build.zig.zon at the local checkout path and add the dependency module to your application module in build.zig. The complete triage example shows client setup, buffers, and cleanup end to end.

Who owns the buffers and frees the memory?

You do. Results borrow the request, response, and scratch buffers you supply, so copy borrowed data before reusing them. Give each concurrent worker its own client and workspace over your allocator.

Is it safe for concurrent use?

Yes, with one client and workspace per concurrent worker. HTTP and TLS run on the allocator you supply, and offline examples cover bounded parallel use alongside error handling.

Why not just use the official SDK?

Pick it for Zig-native enums, explicit buffer ownership, and documented API stability, contract, memory-testing, TLS, and compatibility notes. It is independent of TypeSafe AI and still pre-release, so check the changelog first.

Can I test it without spending anything?

Yes. zig build check and zig build examples run locally with no API credentials, and transport tests use loopback sockets. Native CI covers Linux, macOS and Windows in both debug and ReleaseSafe, including TLS rejection and allocation recovery, with separate manual workflows for coverage-guided fuzzing and soak tests.

What does it not do yet?

It is still pre-release and three things are absent by design: dynamic schemas, model discovery and connection pooling. The client also never reads credential files, so TYPESAFE_API_KEY has to come from your environment, and zig build live sends a real billable request where retries can add further charges. Read CHANGELOG.md before depending on a surface.

CommunityJev Repos & SDKs

Jevlin

Q: How mature is this, and what does it target?

Zig 0.16.0, marked experimental and independent of TypeSafe AI, so it carries no vendor guarantee. It asks yes/no, classification and scoring questions in one request and hands back probabilities plus typed Zig enums. MIT licensed, with no credential-file reading of any kind.

Experimental typed Zig SDK for Jev targeting Zig 0.16.0, asking yes/no, classification, and scoring questions in one request and returning probabilities with Zig enums.

See highlights

Open github.com

Stars: 1
Language: Zig
License: MIT
Published by: Community
Author: copyleftdev
Last verified: Oct 2026

copyleftdev/jevlin

User repository on GitHub

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Zig SDK for TypeSafe AI's Jev decision API. Typed classification, scoring and yes/no probabilities with bounded buffers, retries and deadlines.

Forks: 1
Last pushed: Updated Sep 2026

Repo stats from the GitHub API, cached Oct 2026.

About this project

A typed Zig SDK for TypeSafe AI's Jev. Ask yes/no, classification, and scoring questions in one request. Get probabilities and Zig enums back. Zig 0.16.0 · Experimental · Independent of TypeSafe AI. The complete example shows client setup, buffers, and cleanup. Offline examples cover structured questions, error handling, and bounded parallel use. For a local checkout, add this to your build.zig.zon dependencies: In build.zig, add the dependency to your application module:

Quoted from the project's README. Read the full README.

Tagscommunity github

Works forJev for Scoring Jev for Classification

Used inJev for Software & DevTools

Highlights

Asks noul, enum choice, and leveled score questions together with typed Zig enum answers.
Caller owns request, response, and scratch buffers; borrowed results must be copied before reuse.
Local checks run credential-free with loopback transport tests; live runs need an API key and bill.
Native CI covers Linux, macOS, and Windows plus TLS rejection, with separate fuzz and soak workflows.

Watch out

Pre-release without dynamic schemas, model discovery, or connection pooling; live requests are billable, retries can add charges, and the SDK reads no credential files. Copy reviewed against the repository README on 2026-10-04, not from running it.

Questions about this entry

Short answers drawn from the linked project or page.

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