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Unofficial Go SDK for TypeSafe AI's Jev API
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CommunityJev Repos & SDKs
Jev Go — guillemus
Unofficial Go SDK for TypeSafe AI's System One API, kept deliberately minimal: one client, a state map, a map of typed questions, and answers read back by question id.
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- 1
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- Go
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- Author
- guillemus
- Last verified
- Oct 2026
This is one of several Jev listings for the same project. The canonical entry is Jev Go — Stumble.
About this project
Unofficial Go SDK for TypeSafe AI and its Jev API. Abstractions kept very minimal. Install the SDK (Go 1.26 or newer): Set TYPESAFEAPIKEY in your environment, then create and use the client: Supports Noul, Choice, Score, structured inputs, and model listing. Use jev.NewClientWithConfig for custom settings. Learn what TypeSafe can do in the TypeSafe docs. See the examples for usage and the Go API reference for client types and options.
Quoted from the project's README. Read the full README.
Works forJev for Classification
Used inJev for Software & DevTools
- Languages
- Go
Highlights
- Needs Go 1.26 or newer; installation is a single go get, and the client reads TYPESAFE_API_KEY from the environment.
- State is a map of strings and questions a map of typed jev.Question values, so several questions travel in one SystemOne call.
- Covers Noul, Choice and Score questions plus structured inputs and model listing, with jev.NewClientWithConfig for custom settings.
- The README is one page: a quickstart, a one-line feature list, and links to the TypeSafe docs, examples and pkg.go.dev.
Watch out
Unofficial and community-run, with no statement about affiliation with or support from TypeSafe. The abstractions are minimal by design, and the README only demonstrates constructing the client, one SystemOne call and reading the winning label out of Answers; it does not show how to read scores, probabilities or confidence, and it documents no error types, retries or timeouts, so treat pkg.go.dev as the reference for the surface. Expect to pin the module version in your own go.mod, since the README makes no claim about which API version the SDK tracks. 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.
Very thin. The README calls the abstractions minimal and shows three things: jev.NewClient with the key, client.SystemOne with a state map and a questions map, and a print of the selected choice. There is no documented error handling, retry policy, timeout handling, usage reporting or confidence plumbing in the README, so if you need those you are writing them yourself or reading the generated Go API reference, which the README links for client types and options.
Yes. Questions is a map from your own id to a jev.Question value, and the quickstart builds one with jev.Choice, passing a prompt and a map of option names to nil. The response is keyed the same way, so you read response.Answers['category'].Choice for the winning label. jev.Noul and jev.Score are supported alongside Choice, along with structured inputs and model listing.
Nothing in this SDK catches it for you, and that is the main thing to know. The README only demonstrates reading the selected choice for a Choice question; it does not show typed accessors that would stop you reading a Choice result as a probability, and it documents no runtime validation of the answer shape. If your code depends on that safety, either check the returned values yourself or look at the pkg.go.dev reference before committing to the dependency.
None stated. The README is a single-page quickstart with no version policy, no changelog and no statement about which System One API version it targets, and it is explicitly unofficial. Pin the module version in your go.mod and re-check the example against the TypeSafe docs at docs.typesafe.ai when you upgrade, rather than assuming the request and response shapes will hold.
Construct the client with jev.NewClient and your key, then call client.SystemOne with a jev.Request holding a State map of strings and a Questions map from your own id to a typed question. The response comes back keyed the same way, so you read response.Answers["category"].Choice for the winning label. jev.NewClientWithConfig is there when you need custom settings beyond the key.
The README is a single-page quickstart that says little more than which primitives exist, so the generated reference is the real documentation: pkg.go.dev for client types and options, and the examples directory for usage patterns. The README also links out to the TypeSafe documentation for what the model itself does, which is a fair split given how minimal the wrapper is.
Go 1.26 or newer, one go get github.com/guillemus/jev-go, and TYPESAFE_API_KEY in the environment. There is no configuration file, no client-side defaulting layer, and no builder beyond the constructor: jev.NewClient takes the key, and jev.NewClientWithConfig is there if you need something other than the defaults.
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