Make any TypeScript Function Durable
use workflow brings durability, reliability, and observability to async JavaScript. Build apps and AI Agents that can suspend, resume, and maintain state with ease.
Reliability-as-code
Move from hand-rolled queues and custom retries to durable, resumable code with simple directives.
Effortless setup
With a simple declarative API to define and use your workflows.
Creating a workflow
Defining steps
Deep integration with AI SDK. Use familiar AI SDK patterns, plus durability, observability, and retries so agents stay reliable in production.
Durable agents by default. High-performance streaming, persistence, and resumable runs work out of the box. No infrastructure setup required.
Inspect every run end‑to‑end.
Observability is built into the SDK and works anywhere you run it. When using workflow on Vercel, observability is built into the Vercel dashboard with no configuration or storage.
Run anywhere, no lock‑in
Run locally, self-host, or swap every component — Workflow SDK is fully portable. For zero-config, secure, and scalable workflows, deploy on Vercel.
export async function welcome(userId: string) {
"use workflow";
const user = await getUser(userId);
const { subject, body } = await generateEmail({
name: user.name, plan: user.plan
});
const { status } = await sendEmail({
to: user.email,
subject,
body,
});
return { status, subject, body };
}Workflow SDK on Vercel
Zero infrastructure management, atomic versioning, and out of the box observability. Vercel makes Workflows easy.
Learn moreBuild anything with
Build reliable, long-running processes with automatic retries, state persistence, and observability built in.
