Jev project · SDK & Decision Frameworks
ai
vercel/ai
The TypeSafe provider in AI SDK lets TypeScript applications call Jev through the shared evaluate interface.

- GitHub stars
- 26,899 as of 2026-09-22
- Forks
- 5,189
- Language
- TypeScript
- License
- Check upstream
- Created
- 2023-05-23
- Last updated on GitHub
- 2026-09-25

Built by this organization
VercelWhat Jev does in ai
Maps choice, score, and yes/no questions to TypeSafe System One requests and parses typed results.
Verification
Verified. We confirmed this repository through the GitHub API and located the code that calls Jev at a pinned commit: view the Jev code ↗. Upstream code changes over time, so check that the file still exists at the current commit before citing it.
Topics
- anthropic
- artificial-intelligence
- gemini
- generative-ai
- generative-ui
- javascript
- language-model
- llm
- nextjs
- openai
- react
- svelte
- typescript
- vercel
How SDK & Decision Frameworks projects use Jev
Established AI frameworks that ship a Jev or TypeSafe provider, from agent toolkits to structured-output libraries. They let a large existing codebase adopt typed decisions with little new code.
Related Jev projects in SDK & Decision Frameworks
- composioComposioHQ/composioAn optional TypeSafe provider for Composio that uses Jev to choose among tools and bounded argument options.★ 30,288
TypeScript - elizaelizaOS/elizaAn optional TypeSafe HTTP adapter in Eliza’s source, not registered with the Agent runtime by default.★ 19,409
TypeScript - langchainjslangchain-ai/langchainjsAn optional LangChain.js TypeSafeClassifier integration for sending state and predefined questions to Jev.★ 18,220
TypeScript
rig-typesafeai0xPlaygrounds/rigAn experimental TypeSafe crate in Rig for expressing Jev questions and answers with Rust types.★ 8,699
Rust- req_llmagentjido/req_llmA TypeSafe provider for calling Jev through ReqLLM’s evaluate interface in Elixir.★ 581
Elixir
instructor-phpcognesy/instructor-phpA TypeSafe Decision driver within Instructor PHP’s Polyglot module.★ 327
PHP