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BuildWithJev

Built with Jev

A directory of use cases and open-source projects built with TypeSafe's Jev model — every entry points at something you can go read, run, or fork.

Featured

AppFeatured

Jev X reply spam filter

A Chrome extension that filters spam out of X replies, using templates first and falling back to Jev when a reply does not match one.

github.com#chrome-extension#moderation#xSep 18, 2026
DemoFeatured

Doom bot

TypeSafe's own demo: a bot that plays Doom through Jev, running about 10 queries per second for roughly $7 per hour.

typesafe.ai#gaming#real-time#demoSep 17, 2026
Demo

Wikiracing

A two-stage Wikiracing agent that picks the next link by giving Jev a high-cardinality Choice of up to 255 candidates.

typesafe.ai#agents#search#demoSep 16, 2026
Write-up

A Jev deep dive

Flavio Copes works through Jev with JavaScript examples, covering the common patterns and where the model's limits actually are.

flaviocopes.com#tutorial#javascript#getting-startedSep 15, 2026
Write-up

How to use Jev: a practical guide

A hands-on guide to the three primitives — Noul, Choice, and Score — with worked examples for each.

dev.to#tutorial#getting-started#primitivesSep 14, 2026
Write-up

Jev on Cloudflare Workers AI

Cloudflare ships typesafe/jev as a Workers AI binding, so you can call it from an edge worker without a separate API client.

developers.cloudflare.com#cloudflare#edge#workersSep 13, 2026

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