diff --git a/.github/workflows/ci-lazer-js.yml b/.github/workflows/ci-lazer-js.yml
new file mode 100644
index 0000000..67f1881
--- /dev/null
+++ b/.github/workflows/ci-lazer-js.yml
@@ -0,0 +1,22 @@
+name: "Lazer JS Test Suite"
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  lazer-js-test-suite:
+    name: Lazer JS Test Suite
+    runs-on: ubuntu-22.04
+    defaults:
+      run:
+        working-directory: lazer/js
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
+      with:
+        node-version: 18
+    - run: npm install --global pnpm@9.2.0
+    - run: pnpm install --frozen-lockfile
+    - run: pnpm run test
diff --git a/lazer/js/.gitignore b/lazer/js/.gitignore
new file mode 100644
index 0000000..809f867
--- /dev/null
+++ b/lazer/js/.gitignore
@@ -0,0 +1,2 @@
+tsconfig.tsbuildinfo
+dist
diff --git a/lazer/js/package.json b/lazer/js/package.json
new file mode 100644
index 0000000..94c2d3f
--- /dev/null
+++ b/lazer/js/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "pyth-lazer-js-example",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "type": "module",
+  "scripts": {
+    "start": "node --loader ts-node/esm src/index.js",
+    "test": "pnpm run test:format && pnpm run build:cjs && pnpm run build:esm",
+    "build:cjs": "tsc --project tsconfig.json --verbatimModuleSyntax false --module commonjs --outDir ./dist/cjs && echo '{\"type\":\"commonjs\"}' > dist/cjs/package.json",
+    "build:esm": "tsc --project tsconfig.json --outDir ./dist/esm && echo '{\"type\":\"module\"}' > dist/esm/package.json",
+    "fix:format": "prettier --write **/*.*",
+    "test:format": "prettier --check **/*.*"
+  },
+  "author": "",
+  "license": "Apache-2.0",
+  "dependencies": {
+    "@pythnetwork/pyth-lazer-sdk": "^0.1.1"
+  },
+  "devDependencies": {
+    "@cprussin/tsconfig": "^3.0.1",
+    "@types/node": "^22.10.0",
+    "prettier": "^3.4.1",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.7.2"
+  }
+}
diff --git a/lazer/js/pnpm-lock.yaml b/lazer/js/pnpm-lock.yaml
new file mode 100644
index 0000000..3bf0f3c
--- /dev/null
+++ b/lazer/js/pnpm-lock.yaml
@@ -0,0 +1,224 @@
+lockfileVersion: '9.0'
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+importers:
+
+  .:
+    dependencies:
+      '@pythnetwork/pyth-lazer-sdk':
+        specifier: ^0.1.1
+        version: 0.1.1
+    devDependencies:
+      '@cprussin/tsconfig':
+        specifier: ^3.0.1
+        version: 3.0.1
+      '@types/node':
+        specifier: ^22.10.0
+        version: 22.10.0
+      prettier:
+        specifier: ^3.4.1
+        version: 3.4.1
+      ts-node:
+        specifier: ^10.9.2
+        version: 10.9.2(@types/node@22.10.0)(typescript@5.7.2)
+      typescript:
+        specifier: ^5.7.2
+        version: 5.7.2
+
+packages:
+
+  '@cprussin/tsconfig@3.0.1':
+    resolution: {integrity: sha512-OBS2ew/pNjiWBI12kEt++8xKFE1rwZhitHOLHmqhNUs/1b4noi6k8nN0ZriV5ltTDP1l1jzYuaA69gwujaR28A==}
+
+  '@cspotcode/source-map-support@0.8.1':
+    resolution: {integrity: sha512-IchNf6dN4tHoMFIn/7OE8LWZ19Y6q/67Bmf6vnGREv8RSbBVb9LPJxEcnwrcwX6ixSvaiGoomAUvu4YSxXrVgw==}
+    engines: {node: '>=12'}
+
+  '@jridgewell/resolve-uri@3.1.2':
+    resolution: {integrity: sha512-bRISgCIjP20/tbWSPWMEi54QVPRZExkuD9lJL+UIxUKtwVJA8wW1Trb1jMs1RFXo1CBTNZ/5hpC9QvmKWdopKw==}
+    engines: {node: '>=6.0.0'}
+
+  '@jridgewell/sourcemap-codec@1.5.0':
+    resolution: {integrity: sha512-gv3ZRaISU3fjPAgNsriBRqGWQL6quFx04YMPW/zD8XMLsU32mhCCbfbO6KZFLjvYpCZ8zyDEgqsgf+PwPaM7GQ==}
+
+  '@jridgewell/trace-mapping@0.3.9':
+    resolution: {integrity: sha512-3Belt6tdc8bPgAtbcmdtNJlirVoTmEb5e2gC94PnkwEW9jI6CAHUeoG85tjWP5WquqfavoMtMwiG4P926ZKKuQ==}
+
+  '@pythnetwork/pyth-lazer-sdk@0.1.1':
+    resolution: {integrity: sha512-/Zr9qbNi9YZb9Nl3ilkUKgeSQovevsXV57pIGrw04NFUmK4Ua92o2SyK8RRaqcw8zYtiDbseU1CgWHCfGYjRRQ==}
+
+  '@tsconfig/node10@1.0.11':
+    resolution: {integrity: sha512-DcRjDCujK/kCk/cUe8Xz8ZSpm8mS3mNNpta+jGCA6USEDfktlNvm1+IuZ9eTcDbNk41BHwpHHeW+N1lKCz4zOw==}
+
+  '@tsconfig/node12@1.0.11':
+    resolution: {integrity: sha512-cqefuRsh12pWyGsIoBKJA9luFu3mRxCA+ORZvA4ktLSzIuCUtWVxGIuXigEwO5/ywWFMZ2QEGKWvkZG1zDMTag==}
+
+  '@tsconfig/node14@1.0.3':
+    resolution: {integrity: sha512-ysT8mhdixWK6Hw3i1V2AeRqZ5WfXg1G43mqoYlM2nc6388Fq5jcXyr5mRsqViLx/GJYdoL0bfXD8nmF+Zn/Iow==}
+
+  '@tsconfig/node16@1.0.4':
+    resolution: {integrity: sha512-vxhUy4J8lyeyinH7Azl1pdd43GJhZH/tP2weN8TntQblOY+A0XbT8DJk1/oCPuOOyg/Ja757rG0CgHcWC8OfMA==}
+
+  '@types/node@22.10.0':
+    resolution: {integrity: sha512-XC70cRZVElFHfIUB40FgZOBbgJYFKKMa5nb9lxcwYstFG/Mi+/Y0bGS+rs6Dmhmkpq4pnNiLiuZAbc02YCOnmA==}
+
+  acorn-walk@8.3.4:
+    resolution: {integrity: sha512-ueEepnujpqee2o5aIYnvHU6C0A42MNdsIDeqy5BydrkuC5R1ZuUFnm27EeFJGoEHJQgn3uleRvmTXaJgfXbt4g==}
+    engines: {node: '>=0.4.0'}
+
+  acorn@8.14.0:
+    resolution: {integrity: sha512-cl669nCJTZBsL97OF4kUQm5g5hC2uihk0NxY3WENAC0TYdILVkAyHymAntgxGkl7K+t0cXIrH5siy5S4XkFycA==}
+    engines: {node: '>=0.4.0'}
+    hasBin: true
+
+  arg@4.1.3:
+    resolution: {integrity: sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==}
+
+  create-require@1.1.1:
+    resolution: {integrity: sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ==}
+
+  diff@4.0.2:
+    resolution: {integrity: sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==}
+    engines: {node: '>=0.3.1'}
+
+  isomorphic-ws@5.0.0:
+    resolution: {integrity: sha512-muId7Zzn9ywDsyXgTIafTry2sV3nySZeUDe6YedVd1Hvuuep5AsIlqK+XefWpYTyJG5e503F2xIuT2lcU6rCSw==}
+    peerDependencies:
+      ws: '*'
+
+  make-error@1.3.6:
+    resolution: {integrity: sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==}
+
+  prettier@3.4.1:
+    resolution: {integrity: sha512-G+YdqtITVZmOJje6QkXQWzl3fSfMxFwm1tjTyo9exhkmWSqC4Yhd1+lug++IlR2mvRVAxEDDWYkQdeSztajqgg==}
+    engines: {node: '>=14'}
+    hasBin: true
+
+  ts-node@10.9.2:
+    resolution: {integrity: sha512-f0FFpIdcHgn8zcPSbf1dRevwt047YMnaiJM3u2w2RewrB+fob/zePZcrOyQoLMMO7aBIddLcQIEK5dYjkLnGrQ==}
+    hasBin: true
+    peerDependencies:
+      '@swc/core': '>=1.2.50'
+      '@swc/wasm': '>=1.2.50'
+      '@types/node': '*'
+      typescript: '>=2.7'
+    peerDependenciesMeta:
+      '@swc/core':
+        optional: true
+      '@swc/wasm':
+        optional: true
+
+  typescript@5.7.2:
+    resolution: {integrity: sha512-i5t66RHxDvVN40HfDd1PsEThGNnlMCMT3jMUuoh9/0TaqWevNontacunWyN02LA9/fIbEWlcHZcgTKb9QoaLfg==}
+    engines: {node: '>=14.17'}
+    hasBin: true
+
+  undici-types@6.20.0:
+    resolution: {integrity: sha512-Ny6QZ2Nju20vw1SRHe3d9jVu6gJ+4e3+MMpqu7pqE5HT6WsTSlce++GQmK5UXS8mzV8DSYHrQH+Xrf2jVcuKNg==}
+
+  v8-compile-cache-lib@3.0.1:
+    resolution: {integrity: sha512-wa7YjyUGfNZngI/vtK0UHAN+lgDCxBPCylVXGp0zu59Fz5aiGtNXaq3DhIov063MorB+VfufLh3JlF2KdTK3xg==}
+
+  ws@8.18.0:
+    resolution: {integrity: sha512-8VbfWfHLbbwu3+N6OKsOMpBdT4kXPDDB9cJk2bJ6mh9ucxdlnNvH1e+roYkKmN9Nxw2yjz7VzeO9oOz2zJ04Pw==}
+    engines: {node: '>=10.0.0'}
+    peerDependencies:
+      bufferutil: ^4.0.1
+      utf-8-validate: '>=5.0.2'
+    peerDependenciesMeta:
+      bufferutil:
+        optional: true
+      utf-8-validate:
+        optional: true
+
+  yn@3.1.1:
+    resolution: {integrity: sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==}
+    engines: {node: '>=6'}
+
+snapshots:
+
+  '@cprussin/tsconfig@3.0.1': {}
+
+  '@cspotcode/source-map-support@0.8.1':
+    dependencies:
+      '@jridgewell/trace-mapping': 0.3.9
+
+  '@jridgewell/resolve-uri@3.1.2': {}
+
+  '@jridgewell/sourcemap-codec@1.5.0': {}
+
+  '@jridgewell/trace-mapping@0.3.9':
+    dependencies:
+      '@jridgewell/resolve-uri': 3.1.2
+      '@jridgewell/sourcemap-codec': 1.5.0
+
+  '@pythnetwork/pyth-lazer-sdk@0.1.1':
+    dependencies:
+      isomorphic-ws: 5.0.0(ws@8.18.0)
+      ws: 8.18.0
+    transitivePeerDependencies:
+      - bufferutil
+      - utf-8-validate
+
+  '@tsconfig/node10@1.0.11': {}
+
+  '@tsconfig/node12@1.0.11': {}
+
+  '@tsconfig/node14@1.0.3': {}
+
+  '@tsconfig/node16@1.0.4': {}
+
+  '@types/node@22.10.0':
+    dependencies:
+      undici-types: 6.20.0
+
+  acorn-walk@8.3.4:
+    dependencies:
+      acorn: 8.14.0
+
+  acorn@8.14.0: {}
+
+  arg@4.1.3: {}
+
+  create-require@1.1.1: {}
+
+  diff@4.0.2: {}
+
+  isomorphic-ws@5.0.0(ws@8.18.0):
+    dependencies:
+      ws: 8.18.0
+
+  make-error@1.3.6: {}
+
+  prettier@3.4.1: {}
+
+  ts-node@10.9.2(@types/node@22.10.0)(typescript@5.7.2):
+    dependencies:
+      '@cspotcode/source-map-support': 0.8.1
+      '@tsconfig/node10': 1.0.11
+      '@tsconfig/node12': 1.0.11
+      '@tsconfig/node14': 1.0.3
+      '@tsconfig/node16': 1.0.4
+      '@types/node': 22.10.0
+      acorn: 8.14.0
+      acorn-walk: 8.3.4
+      arg: 4.1.3
+      create-require: 1.1.1
+      diff: 4.0.2
+      make-error: 1.3.6
+      typescript: 5.7.2
+      v8-compile-cache-lib: 3.0.1
+      yn: 3.1.1
+
+  typescript@5.7.2: {}
+
+  undici-types@6.20.0: {}
+
+  v8-compile-cache-lib@3.0.1: {}
+
+  ws@8.18.0: {}
+
+  yn@3.1.1: {}
diff --git a/lazer/js/src/index.ts b/lazer/js/src/index.ts
new file mode 100644
index 0000000..752820e
--- /dev/null
+++ b/lazer/js/src/index.ts
@@ -0,0 +1,44 @@
+import { PythLazerClient } from "@pythnetwork/pyth-lazer-sdk";
+
+/* eslint-disable no-console */
+const client = new PythLazerClient(
+  "wss://pyth-lazer-staging.dourolabs.app/v1/stream",
+  "my_token",
+);
+client.addMessageListener((message) => {
+  console.log("got message:", message);
+  switch (message.type) {
+    case "json": {
+      if (message.value.type == "streamUpdated") {
+        console.log(
+          "stream updated for subscription",
+          message.value.subscriptionId,
+          ":",
+          message.value.parsed?.priceFeeds,
+        );
+      }
+      break;
+    }
+    case "binary": {
+      if ("solana" in message.value) {
+        console.log("solana message:", message.value.solana?.toString("hex"));
+      }
+      if ("evm" in message.value) {
+        console.log("evm message:", message.value.evm?.toString("hex"));
+      }
+      break;
+    }
+  }
+});
+client.ws.addEventListener("open", () => {
+  client.send({
+    type: "subscribe",
+    subscriptionId: 1,
+    priceFeedIds: [1, 2],
+    properties: ["price"],
+    chains: ["solana"],
+    deliveryFormat: "json",
+    channel: "fixed_rate@200ms",
+    jsonBinaryEncoding: "hex",
+  });
+});
diff --git a/lazer/js/tsconfig.json b/lazer/js/tsconfig.json
new file mode 100644
index 0000000..0c7ef3c
--- /dev/null
+++ b/lazer/js/tsconfig.json
@@ -0,0 +1,7 @@
+{
+  "extends": "@cprussin/tsconfig/base.json",
+  "exclude": [
+    "node_modules",
+    "dist"
+  ]
+}