Use Laya from Node.js
You can run Laya inside a Node.js process with ONNX Runtime, or keep the model in a separate server and call it over HTTP. Both routes use the same state-plus-typed-questions request shape as the Python package and the Jev API.
378 projects
laya-onnx
desplega
Exports three Laya decision checkpoints to ONNX for use from Node or Bun
jeffrey
thomasbrueggemann
A coding-agent CLI uses Jev or Laya to choose tools while a configurable LLM executes them
laya-sdk
ryuzcorp
Provides a TypeScript SDK for running cached Laya decision models locally in browsers and Node
laya-portable
MatteoGauthier
Exports Laya to ONNX and provides JavaScript runtimes for Node.js and browser inference
chatassistant-laya
HarrisXiu
Analyzes pasted chat messages locally with Laya and can generate optional reply suggestions
laya-search
giaphutran12
Searches YC companies using local Laya inference or the TypeSafe Jev API
pi-pignon
siiick
A Pi coding-agent extension routes prompts by difficulty using local Laya or hosted Jev
openpave-jev
cnrai
Provides typed-decision commands for PAVE and Claude with local Laya and hosted Jev providers
design-os-generative-ui
jangtrinh
Builds a generative UI engine using local Laya-MLX decisions and a TypeSafe JEV cascade router
Routapse
pooyaphoenix
Routes prompts to models or specialist agents using Laya or Jev classification
laya-multilingual-onnx-int8
Sharjeelbaig
Provides an INT8 ONNX quantization of Laya multilingual for CPU inference in JavaScript and TypeScript
daylens-laya-onnx
aaronalexS
Provides an ONNX conversion of Laya for local activity labeling in the Daylens desktop app
laya-onnx
duration465
Exports Laya’s multilingual checkpoint to ONNX for use with the @receptron/laya Node.js package
laya-ra2-v33
jayzou3773
Fine-tunes Laya to score candidate actions in Red Alert 2 matches
laya-jev
KonghaYao
Runs local Laya inference and exposes Jev-compatible HTTP endpoints
decision-model-playground
tedliou
A local web playground comparing Laya and Jev for recommending articles
laya-mcp
andragon3110
Provides MCP tools for coding-agent judgments using local decision models, including Laya
omp-laya
KiidxAtlas
Adds local Laya decision policies and verification controls to Oh My Pi
laya-jev-arena
dante01yoon
Compares local Laya and hosted Jev models in games and measurement tools
stuntdouble
ReallyArtificial
Proxies Jev requests to local decision models and compares their answers on recorded traffic
decision-infra
hufaei
Routes typed-decision requests to hosted Jev or local Reflex, SemIf, and Laya models
system-one-playground
minkhant1996
Provides a local web playground for Laya and other System One decision models
building-with-laya-skill
MIt9
An agent skill teaches developers to build typed-decision programs with Laya and laya-cli
agent-decision-firewall
chinna250801
Gates AI agent actions with a local Laya decision model and fail-closed rules
In-process: @receptron/laya
@receptron/laya runs the model with ONNX Runtime, so neither Python nor PyTorch is needed at runtime. It requires Node.js 20 or newer.
npm install @receptron/laya
import { Laya } from "@receptron/laya";
const laya = await Laya.load();
const result = await laya.systemOne(
{ subject: "Refund not received", body: "I cancelled two weeks ago and still have no refund..." },
{
department: {
type: "choice",
instructions: "Which team should handle this ticket?",
criteria: { billing: "payments, refunds, invoices", support: "product help and bugs", sales: "new purchases" },
},
churn_risk: { type: "noul", instructions: "Is the customer likely to cancel or dispute?" },
},
);
result.answers.department.choice; // "billing"
await laya.close();
Per its README, the fp32 ONNX weights are about 1.7 GB and download on first use. Budget roughly 2 GB of RAM. A three-question call takes about 140 ms on an Apple Silicon CPU once warm, and the output matches the Python implementation to four decimal places. The package is MIT-licensed; the weights are Apache 2.0.
Over HTTP: laya-studio
laya-studio is a zero-dependency TypeScript client for a running Laya server (Node.js 18.17+):
npm install laya-studio
pip install "laya[serve]"
laya-serve # binds 0.0.0.0:8000
Other JavaScript projects
- @r4ai/laya-web: ONNX Runtime Web runtime for browsers and Node.js.
- kevala: a Rust engine compiled to WebAssembly with WebGPU kernels, installable from npm.
- gg-friggin-ez: a profanity and toxicity screener that defaults to Jev and can point at a local Laya endpoint.
Caveats
The English checkpoint's options must fit a 192-token budget and the state is cut at 512 tokens. The receptron README recommends fewer than about 20 options per choice question.
More ways to use Laya