@blazen/sdk

TypeScript/JavaScript SDK for Blazen via WebAssembly. Run the full Blazen workflow engine, LLM completion, agent loop, and pipeline directly in the browser, Node.js, Deno, or Cloudflare Workers -- no native dependencies required.

Installation

npm install @blazen/sdk

Quick start

import init, { CompletionModel, ChatMessage } from "@blazen/sdk";

await init(); // load the WASM module

const model = CompletionModel.openrouter("or-key");
const response = await model.complete([ChatMessage.user("Hello!")]);
console.log(response.content);

Workflows

import init, { Workflow } from "@blazen/sdk";

await init();

const workflow = new Workflow("greeter");

workflow.addStep("parse", ["StartEvent"], async (event) => {
  return { type: "GreetEvent", name: event.name ?? "World" };
});

workflow.addStep("greet", ["GreetEvent"], async (event) => {
  return {
    type: "StopEvent",
    result: { greeting: `Hello, ${event.name}!` },
  };
});

const result = await workflow.run({ name: "Zach" });
console.log(result.data);

Supported platforms

• Browsers (Chrome, Firefox, Safari, Edge)
• Node.js (v16+)
• Deno
• Cloudflare Workers / edge runtimes
• Any environment with WebAssembly support

Build from source

Requires wasm-pack:

# Bundler target (default -- works with Vite, webpack, etc.)
wasm-pack build --target bundler --release

# Web target (standalone ES module)
wasm-pack build --target web --release

# Node.js target (CommonJS)
wasm-pack build --target nodejs --release

Output is written to the pkg/ directory.

Docs

Full documentation at blazen.dev/docs/getting-started/introduction.

License

AGPL-3.0-or-later