The server layer for Vite apps. Databases, storage, queues, workflows, and more.
Use one API in your app and deploy it to your choice of cloud.

Server Primitives

Use each primitive alone, or use them together in one app.

KV State and cache	Blob Files and uploads	Database Relational data
Queue Background jobs	Workflow Durable orchestration	Schedule Recurring work
Auth Users and sessions	Connections Connected account APIs	Workspace Persistent file trees
Sandbox Isolated execution	Browser Browser operations	Shell Command execution
Source Read-only content	Content Parse and search	Email Transactional email
Channels Named message delivery	Env Typed configuration	Rate Limit Request budgets
Realtime Collaborative documents	Agent Portable automation	UI Agent interfaces

Write once, deploy anywhere

// server/api/settings.get.ts
import { defineEventHandler } from "h3";
import { kv } from "vite-hub/kv";

export default defineEventHandler(async () => {
  const [error, settings] = await kv.get("settings");
  if (error) throw error;
  return settings;
});

This route does not change between hosts. The host selects the provider:

Host	KV	Blob	Database
Cloudflare	Workers KV	R2	D1
Vercel	Upstash Redis	Vercel Blob	libSQL or D1 HTTP
Netlify	Upstash Redis	Netlify Blobs	libSQL
Deno	Deno KV	S3-compatible	libSQL
Node	`fs-lite` or Upstash	`fs` or S3-compatible	SQLite or libSQL

Support is different for each primitive. Read the support matrix before you select a host.

Get started

pnpm add vite-hub nitro h3
pnpm add -D vite

// vite.config.ts
import { vitehub } from "vite-hub";
import { defineConfig } from "vite";

export default defineConfig({
  plugins: [vitehub({ preset: "node", kv: true })],
});

Nitro serves the routes in server/ and builds the output for your host. For a complete app, follow the First Server Primitive tutorial. It runs offline and needs no account.

If a coding agent writes your app, install the ViteHub skill:

npx skills add https://vitehub.dev --skill vitehub

Requirements: Node 24.15 or newer and Vite 8 or newer. Presets: cloudflare, netlify, vercel, deno, and node.

Agents

Agents are one more primitive. Their Capabilities wrap the same primitives that your routes call, so a route can read the KV store that an Agent writes. Start with the First Agent tutorial.

Status

ViteHub is in active development and has not reached 1.0. Interfaces can change between 0.x releases, and security fixes land on main only. Pin your versions, and read Prepare a production deployment before you serve traffic.

Contributing

See AGENTS.md for the code map and checks. ViteHub uses the Apache License 2.0. Report vulnerabilities through the security policy.